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[r]" accesskey="r"><span>Siste endringar</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Spesial:Tilfeldig_side" title="Vis ei tilfeldig side [x]" accesskey="x"><span>Tilfeldig side</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Hjelp:Innhald" title="Hjelp til å bruke alle funksjonane."><span>Hjelp</span></a></li><li id="n-kontakt" class="mw-list-item"><a href="/wiki/Wikipedia:Kontakt"><span>Kontakt</span></a></li> </ul> </div> </div> <div id="p-query" class="vector-menu mw-portlet mw-portlet-query emptyPortlet" > <div class="vector-menu-heading"> Eksterne søk </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> På andre prosjekt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Precambrian" hreflang="en"><span>Wikimedia Commons</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q103910" title="Lenkje til tilknytt element [g]" accesskey="g"><span>Wikidata-element</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Hovudside" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; 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[o]" accesskey="o" class=""><span>Logg inn</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Fleire val" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personlege verktøy" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personlege verktøy</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Brukarmeny" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_nn.wikipedia.org&uselang=nn"><span>Gåver</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Opprett_konto&returnto=Prekambrium" title="Me oppfordrar til at du oppretter ein konto og loggar inn, men det er ikkje påkravd."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Opprett konto</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Spesial:Logg_inn&returnto=Prekambrium" title="Det er ikkje obligatorisk å logga inn, men medfører mange fordelar. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Sider for utlogga bidragsytarar <a href="/wiki/Hjelp:Introduksjon" aria-label="Lær meir om redigering"><span>lær meir</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Spesial:Bidraga_mine" title="Liste over endringar gjorde frå denne IP-adressa [y]" accesskey="y"><span>Bidrag</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Spesial:Diskusjonssida_mi" title="Diskusjon om endringar gjorde av denne ip-adressa [n]" accesskey="n"><span>Diskusjon</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettstad"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innhald" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhald</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">gøym</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Byrjinga</div> </a> </li> <li id="toc-Oversyn" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Oversyn"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Oversyn</span> </div> </a> <ul id="toc-Oversyn-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Livet_før_kambrium" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Livet_før_kambrium"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Livet før kambrium</span> </div> </a> <ul id="toc-Livet_før_kambrium-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Miljøet_på_jorda_og_oksygenkatastrofen" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Miljøet_på_jorda_og_oksygenkatastrofen"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Miljøet på jorda og oksygenkatastrofen</span> </div> </a> <ul id="toc-Miljøet_på_jorda_og_oksygenkatastrofen-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Inndeling" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Inndeling"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Inndeling</span> </div> </a> <ul id="toc-Inndeling-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-I_Noreg" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#I_Noreg"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>I Noreg</span> </div> </a> <ul id="toc-I_Noreg-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kjelder" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kjelder"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Kjelder</span> </div> </a> <button aria-controls="toc-Kjelder-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Vis/skjul underseksjonen Kjelder</span> </button> <ul id="toc-Kjelder-sublist" class="vector-toc-list"> <li id="toc-Andre_kjelder" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Andre_kjelder"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>Andre kjelder</span> </div> </a> <ul id="toc-Andre_kjelder-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Bakgrunnsstoff" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bakgrunnsstoff"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Bakgrunnsstoff</span> </div> </a> <ul id="toc-Bakgrunnsstoff-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhald" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innhaldslista" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innhaldslista</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Prekambrium</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til ein artikkel på eit anna språk. Tilgjengeleg på 80 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-80" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">80 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Prekambrium" title="Prekambrium – norsk bokmål" lang="nb" hreflang="nb" data-title="Prekambrium" data-language-autonym="Norsk bokmål" data-language-local-name="norsk bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Prekambrium" title="Prekambrium – svensk" lang="sv" hreflang="sv" data-title="Prekambrium" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Pr%C3%A6kambrium" title="Prækambrium – dansk" lang="da" hreflang="da" data-title="Prækambrium" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Prekambrium" title="Prekambrium – afrikaans" lang="af" hreflang="af" data-title="Prekambrium" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D8%A7_%D9%82%D8%A8%D9%84_%D8%A7%D9%84%D9%83%D9%85%D8%A8%D8%B1%D9%8A" title="ما قبل الكمبري – arabisk" lang="ar" hreflang="ar" data-title="ما قبل الكمبري" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Precambrianu" title="Precambrianu – asturisk" lang="ast" hreflang="ast" data-title="Precambrianu" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Kembrid%C9%99n_%C9%99vv%C9%99l" title="Kembridən əvvəl – aserbajdsjansk" lang="az" hreflang="az" data-title="Kembridən əvvəl" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AA%E0%A7%8D%E0%A6%B0%E0%A6%BE%E0%A6%95%E0%A7%8D-%E0%A6%95%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%AE%E0%A7%8D%E0%A6%AC%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%A8" title="প্রাক্-ক্যাম্ব্রিয়ান – bengali" lang="bn" hreflang="bn" data-title="প্রাক্-ক্যাম্ব্রিয়ান" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Prakambrium" title="Prakambrium – banjar" lang="bjn" hreflang="bjn" data-title="Prakambrium" data-language-autonym="Banjar" data-language-local-name="banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Sian-Cambria_s%C3%AE-t%C4%81i" title="Sian-Cambria sî-tāi – minnan" lang="nan" hreflang="nan" data-title="Sian-Cambria sî-tāi" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%94%D0%B0%D0%BA%D0%B5%D0%BC%D0%B1%D1%80%D1%8B%D0%B9" title="Дакембрый – belarusisk" lang="be" hreflang="be" data-title="Дакембрый" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A5%80%E0%A4%95%E0%A5%88%E0%A4%82%E0%A4%AC%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%A8" title="प्रीकैंब्रियन – bihari" lang="bh" hreflang="bh" data-title="प्रीकैंब्रियन" data-language-autonym="भोजपुरी" data-language-local-name="bihari" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%94%D0%BE%D0%BA%D0%B0%D0%BC%D0%B1%D1%80%D0%B8%D0%B9" title="Докамбрий – bulgarsk" lang="bg" hreflang="bg" data-title="Докамбрий" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Prekambrij" title="Prekambrij – bosnisk" lang="bs" hreflang="bs" data-title="Prekambrij" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Precambri%C3%A0" title="Precambrià – katalansk" lang="ca" hreflang="ca" data-title="Precambrià" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Prekambrium" title="Prekambrium – tsjekkisk" lang="cs" hreflang="cs" data-title="Prekambrium" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Cyn-Gambriaidd" title="Cyn-Gambriaidd – walisisk" lang="cy" hreflang="cy" data-title="Cyn-Gambriaidd" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Pr%C3%A4kambrium" title="Präkambrium – tysk" lang="de" hreflang="de" data-title="Präkambrium" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Eelkambrium" title="Eelkambrium – estisk" lang="et" hreflang="et" data-title="Eelkambrium" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CF%81%CE%BF%CE%BA%CE%AC%CE%BC%CE%B2%CF%81%CE%B9%CE%BF" title="Προκάμβριο – gresk" lang="el" hreflang="el" data-title="Προκάμβριο" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Precambrian" title="Precambrian – engelsk" lang="en" hreflang="en" data-title="Precambrian" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Prec%C3%A1mbrico" title="Precámbrico – spansk" lang="es" hreflang="es" data-title="Precámbrico" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Anta%C5%ADkambrio" title="Antaŭkambrio – esperanto" lang="eo" hreflang="eo" data-title="Antaŭkambrio" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Kanbriarraurre" title="Kanbriarraurre – baskisk" lang="eu" hreflang="eu" data-title="Kanbriarraurre" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%BE%D8%B1%DA%A9%D8%A7%D9%85%D8%A8%D8%B1%DB%8C%D9%86" title="پرکامبرین – persisk" lang="fa" hreflang="fa" data-title="پرکامبرین" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Pr%C3%A9cambrien" title="Précambrien – fransk" lang="fr" hreflang="fr" data-title="Précambrien" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/R%C3%A9amh-Chaimbriach" title="Réamh-Chaimbriach – irsk" lang="ga" hreflang="ga" data-title="Réamh-Chaimbriach" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Prec%C3%A1mbrico" title="Precámbrico – galisisk" lang="gl" hreflang="gl" data-title="Precámbrico" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%84%A0%EC%BA%84%EB%B8%8C%EB%A6%AC%EC%95%84_%EC%8B%9C%EB%8C%80" title="선캄브리아 시대 – koreansk" lang="ko" hreflang="ko" data-title="선캄브리아 시대" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%AB%D5%B6%D5%B9%D6%84%D5%A5%D5%B4%D5%A2%D6%80%D5%AB_%D5%AA%D5%A1%D5%B4%D5%A1%D5%B6%D5%A1%D5%AF%D5%A1%D5%B7%D6%80%D5%BB%D5%A1%D5%B6" title="Մինչքեմբրի ժամանակաշրջան – armensk" lang="hy" hreflang="hy" data-title="Մինչքեմբրի ժամանակաշրջան" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%95%E0%A5%88%E0%A4%82%E0%A4%AC%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%A8%E0%A4%AA%E0%A5%82%E0%A4%B0%E0%A5%8D%E0%A4%B5" title="कैंब्रियनपूर्व – hindi" lang="hi" hreflang="hi" data-title="कैंब्रियनपूर्व" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Prekambrij" title="Prekambrij – kroatisk" lang="hr" hreflang="hr" data-title="Prekambrij" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Prakambrium" title="Prakambrium – indonesisk" lang="id" hreflang="id" data-title="Prakambrium" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Forkambr%C3%ADum" title="Forkambríum – islandsk" lang="is" hreflang="is" data-title="Forkambríum" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Precambriano" title="Precambriano – italiensk" lang="it" hreflang="it" data-title="Precambriano" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A4%D7%A8%D7%A7%D7%9E%D7%91%D7%A8%D7%99%D7%95%D7%9F" title="פרקמבריון – hebraisk" lang="he" hreflang="he" data-title="פרקמבריון" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Prakambriyum" title="Prakambriyum – javanesisk" lang="jv" hreflang="jv" data-title="Prakambriyum" data-language-autonym="Jawa" data-language-local-name="javanesisk" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%86%E0%B2%B0%E0%B3%8D%E0%B2%B7%E0%B3%87%E0%B2%AF_%E0%B2%AF%E0%B3%81%E0%B2%97" title="ಆರ್ಷೇಯ ಯುಗ – kannada" lang="kn" hreflang="kn" data-title="ಆರ್ಷೇಯ ಯುಗ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9F%D1%80%D0%B5%D0%BA%D0%B5%D0%BC%D0%B1%D1%80%D0%B8%D0%B9" title="Прекембрий – kasakhisk" lang="kk" hreflang="kk" data-title="Прекембрий" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-avk mw-list-item"><a href="https://avk.wikipedia.org/wiki/Abdikambruk" title="Abdikambruk – kotava" lang="avk" hreflang="avk" data-title="Abdikambruk" data-language-autonym="Kotava" data-language-local-name="kotava" class="interlanguage-link-target"><span>Kotava</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9A%D0%B5%D0%BC%D0%B1%D1%80%D0%B8%D0%B9%D0%B3%D0%B5_%D1%87%D0%B5%D0%B9%D0%B8%D0%BD%D0%BA%D0%B8_%D0%BC%D0%B5%D0%B7%D0%B3%D0%B8%D0%BB" title="Кембрийге чейинки мезгил – kirgisisk" lang="ky" hreflang="ky" data-title="Кембрийге чейинки мезгил" data-language-autonym="Кыргызча" data-language-local-name="kirgisisk" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Praecambrium" title="Praecambrium – latin" lang="la" hreflang="la" data-title="Praecambrium" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pirmskembrijs" title="Pirmskembrijs – latvisk" lang="lv" hreflang="lv" data-title="Pirmskembrijs" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Prekambras" title="Prekambras – litauisk" lang="lt" hreflang="lt" data-title="Prekambras" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Prekambrium" title="Prekambrium – ungarsk" lang="hu" hreflang="hu" data-title="Prekambrium" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Prakambrium" title="Prakambrium – malayisk" lang="ms" hreflang="ms" data-title="Prakambrium" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Precambrium" title="Precambrium – nederlandsk" lang="nl" hreflang="nl" data-title="Precambrium" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%A4%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%96%E0%A4%A3%E0%A5%8D%E0%A4%A1_%E0%A4%AA%E0%A5%82%E0%A4%B0%E0%A5%8D%E0%A4%B5%E0%A4%AF%E0%A5%81%E0%A4%97" title="त्रिखण्ड पूर्वयुग – nepalsk" lang="ne" hreflang="ne" data-title="त्रिखण्ड पूर्वयुग" data-language-autonym="नेपाली" data-language-local-name="nepalsk" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%85%88%E3%82%AB%E3%83%B3%E3%83%96%E3%83%AA%E3%82%A2%E6%99%82%E4%BB%A3" title="先カンブリア時代 – japansk" lang="ja" hreflang="ja" data-title="先カンブリア時代" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Precambrian" title="Precambrian – oksitansk" lang="oc" hreflang="oc" data-title="Precambrian" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Durleetoo" title="Durleetoo – oromo" lang="om" hreflang="om" data-title="Durleetoo" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Tokembriy" title="Tokembriy – usbekisk" lang="uz" hreflang="uz" data-title="Tokembriy" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Precambrian" title="Precambrian – piemontesisk" lang="pms" hreflang="pms" data-title="Precambrian" data-language-autonym="Piemontèis" data-language-local-name="piemontesisk" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Pr%C3%A4kambrium" title="Präkambrium – lågtysk" lang="nds" hreflang="nds" data-title="Präkambrium" data-language-autonym="Plattdüütsch" data-language-local-name="lågtysk" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Prekambr" title="Prekambr – polsk" lang="pl" hreflang="pl" data-title="Prekambr" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Pr%C3%A9-Cambriano" title="Pré-Cambriano – portugisisk" lang="pt" hreflang="pt" data-title="Pré-Cambriano" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Precambrian" title="Precambrian – rumensk" lang="ro" hreflang="ro" data-title="Precambrian" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%BE%D0%BA%D0%B5%D0%BC%D0%B1%D1%80%D0%B8%D0%B9" title="Докембрий – russisk" lang="ru" hreflang="ru" data-title="Докембрий" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Koha_Prekambriane" title="Koha Prekambriane – albansk" lang="sq" hreflang="sq" data-title="Koha Prekambriane" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/Precambrian" title="Precambrian – singalesisk" lang="si" hreflang="si" data-title="Precambrian" data-language-autonym="සිංහල" data-language-local-name="singalesisk" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Precambrian" title="Precambrian – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="Precambrian" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Predkambrium" title="Predkambrium – slovakisk" lang="sk" hreflang="sk" data-title="Predkambrium" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Predkambrij" title="Predkambrij – slovensk" lang="sl" hreflang="sl" data-title="Predkambrij" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Kambriyaan_ka_hor" title="Kambriyaan ka hor – somali" lang="so" hreflang="so" data-title="Kambriyaan ka hor" data-language-autonym="Soomaaliga" data-language-local-name="somali" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Prekambrijum" title="Prekambrijum – serbisk" lang="sr" hreflang="sr" data-title="Prekambrijum" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Prekambrij" title="Prekambrij – serbokroatisk" lang="sh" hreflang="sh" data-title="Prekambrij" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Prakambrium" title="Prakambrium – sundanesisk" lang="su" hreflang="su" data-title="Prakambrium" data-language-autonym="Sunda" data-language-local-name="sundanesisk" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Prekambri" title="Prekambri – finsk" lang="fi" hreflang="fi" data-title="Prekambri" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Prekambriyano" title="Prekambriyano – tagalog" lang="tl" hreflang="tl" data-title="Prekambriyano" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%9E%E0%B8%A3%E0%B8%B5%E0%B9%81%E0%B8%84%E0%B8%A1%E0%B9%80%E0%B8%9A%E0%B8%A3%E0%B8%B5%E0%B8%A2%E0%B8%99" title="พรีแคมเบรียน – thai" lang="th" hreflang="th" data-title="พรีแคมเบรียน" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Prekambriyen" title="Prekambriyen – tyrkisk" lang="tr" hreflang="tr" data-title="Prekambriyen" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%BE%D0%BA%D0%B5%D0%BC%D0%B1%D1%80%D1%96%D0%B9" title="Докембрій – ukrainsk" lang="uk" hreflang="uk" data-title="Докембрій" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%82%D8%A8%D9%84_%DA%A9%DB%8C%D9%85%D8%A8%D8%B1%DB%8C_%D8%AF%D9%88%D8%B1" title="قبل کیمبری دور – urdu" lang="ur" hreflang="ur" data-title="قبل کیمبری دور" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Th%E1%BB%9Di_k%E1%BB%B3_Ti%E1%BB%81n_Cambri" title="Thời kỳ Tiền Cambri – vietnamesisk" lang="vi" hreflang="vi" data-title="Thời kỳ Tiền Cambri" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%89%8D%E5%AF%92%E6%AD%A6%E7%B4%80" title="前寒武紀 – klassisk kinesisk" lang="lzh" hreflang="lzh" data-title="前寒武紀" data-language-autonym="文言" data-language-local-name="klassisk kinesisk" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Precambrian" title="Precambrian – waray" lang="war" hreflang="war" data-title="Precambrian" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%89%8D%E5%AF%92%E6%AD%A6%E7%BA%AA" title="前寒武纪 – wu" lang="wuu" hreflang="wuu" data-title="前寒武纪" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%C3%8Cgb%C3%A0_iw%C3%A1j%C3%BA_K%C3%A1mbr%C3%AD%C3%A0" title="Ìgbà iwájú Kámbríà – joruba" lang="yo" hreflang="yo" data-title="Ìgbà iwájú Kámbríà" data-language-autonym="Yorùbá" data-language-local-name="joruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%89%8D%E5%AF%92%E6%AD%A6%E7%B4%80" title="前寒武紀 – kantonesisk" lang="yue" hreflang="yue" data-title="前寒武紀" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%89%8D%E5%AF%92%E6%AD%A6%E7%BA%AA" title="前寒武纪 – kinesisk" lang="zh" hreflang="zh" data-title="前寒武纪" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q103910#sitelinks-wikipedia" title="Endra mellomspråklege lenkjer" class="wbc-editpage">Endra lenkjer</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Prekambrium" title="Vis innhaldssida [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Diskusjon:Prekambrium&action=edit&redlink=1" rel="discussion" class="new" title="Diskusjon om innhaldssida (sida finst ikkje) [t]" 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href="/wiki/Spesial:Relaterte_endringar/Prekambrium" rel="nofollow" title="Nylege endringar på sider denne sida lenkjar til [k]" accesskey="k"><span>Relaterte endringar</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=nn" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Spesial:Spesialsider" title="Liste over spesialsider [q]" accesskey="q"><span>Spesialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Prekambrium&oldid=3423847" title="Fast lenkje til denne versjonen av sida"><span>Fast lenkje</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Prekambrium&action=info" title="Meir informasjon om sida"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a 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class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nn" dir="ltr"><div id="Container" class="toccolours" style="text-align: left; padding:0.5em 0 0 0; border-style:dotted; float:right; padding:0 0.5em; margin:0.3em 0 0.8em 1.4em;"><div id="Title" style="background-color:rgb(232,82,113); font-weight:bold; padding:0.2em; text-align:center; margin:0.6em 0 1.2em 0">Geologiske periodar</div><div id="Contains-Timeline-Scale-Notes"><div style="text-align:right; position:relative; top:-1em;"><small><a href="/wiki/Mal:Eon_grafisk_tidslinje" title="Mal:Eon grafisk tidslinje"><span style="color:#002bb8;" title="Sjå denen tidslinja på ei eiga side">sjå</span></a> • <a href="/w/index.php?title=Maldiskusjon:Eon_grafisk_tidslinje&action=edit&redlink=1" class="new" title="Maldiskusjon:Eon grafisk tidslinje (sida finst ikkje)"><span style="color:#002bb8;" title="Diskuter denne malen">diskuter</span></a> • <span class="noprint plainlinksneverexpand" style="color:#002bb8;" title="Du kan endre denen tidslinja. Bruk førehandsvis før du lagrar."><a class="external text" href="https://nn.wikipedia.org/w/index.php?title=Mal:Eon_grafisk_tidslinje&action=edit">endre</a></span></small></div><div id="Scale" style="width:3.1em; position:relative; top:-0.82em; float:left; height:36em; padding:0px"><div style="float:right; position:absolute; right:-1px; top:35.470543027739em;"><span style="font-size:86%;white-space:nowrap;">-4500 —</span></div><div style="float:right; position:absolute; right:-1px; top:33.499957303976em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:31.529371580213em;"><span style="font-size:86%;white-space:nowrap;">-4000 —</span></div><div style="float:right; position:absolute; right:-1px; top:29.558785856449em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:27.588200132686em;"><span style="font-size:86%;white-space:nowrap;">-3500 —</span></div><div style="float:right; position:absolute; right:-1px; top:25.617614408923em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:23.64702868516em;"><span style="font-size:86%;white-space:nowrap;">-3000 —</span></div><div style="float:right; position:absolute; right:-1px; top:21.676442961396em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:19.705857237633em;"><span style="font-size:86%;white-space:nowrap;">-2500 —</span></div><div style="float:right; position:absolute; right:-1px; top:17.73527151387em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:15.764685790106em;"><span style="font-size:86%;white-space:nowrap;">-2000 —</span></div><div style="float:right; position:absolute; right:-1px; top:13.794100066343em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:11.82351434258em;"><span style="font-size:86%;white-space:nowrap;">-1500 —</span></div><div style="float:right; position:absolute; right:-1px; top:9.8529286188165em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:7.8823428950532em;"><span style="font-size:86%;white-space:nowrap;">-1000 —</span></div><div style="float:right; position:absolute; right:-1px; top:5.9117571712899em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:3.9411714475266em;"><span style="font-size:86%;white-space:nowrap;">-500 —</span></div><div style="float:right; position:absolute; right:-1px; top:1.9705857237633em;"><span style="font-size:86%;white-space:nowrap;">–</span></div><div style="float:right; position:absolute; right:-1px; top:0em;"><span style="font-size:86%;white-space:nowrap;">0 —</span></div></div><div id="ScaleBar" style="width:1px; 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vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:0em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:0em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:0em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:0em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:0em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div><div id="bar" style="width:auto; font-size:100%; position:absolute; text-align:center; margin-top:18em;"><div id="nudge" style="text-size:100%; float:left; position:relative; text-align:left; top:-0.75em; left:-0em; width:7em;"><span style="position:relative; width:auto; font-size:90%; color:black; vertical-align:middle; line-height:100%; bottom:0;"></span></div></div></div></div><div id="Legend" class="toccolours" style="margin-left:3.1em; border-style:none; float:left; clear:both;"></div><div id="Caption" class="toccolours" style="margin:0 0.5em; float:left; padding:0 auto; border-style:none; clear:both; text-align:center; width:11.3em">Skala:<br />Millionar år sidan</div></div> <p><b>Prekambrium</b> eller <b>urtida</b> er eit uformelt namn på eit såkalla supereon som består av <a href="/wiki/Eon" title="Eon">eon</a> av <a href="/wiki/Geologisk_tidsskala" title="Geologisk tidsskala">geologiske periodar</a> som kom før <i><a href="/wiki/Fanerozoikum" title="Fanerozoikum">fanerozoikum</a></i>. Perioden varte frå <a href="/wiki/Jorda" title="Jorda">jorda</a> vart skapt for om lag 4500 millionar år sidan og fram til om lag 542 millionar år sidan då mange makroskopiske dyr med hardt skall dukka opp. Dette markerte byrjinga på <a href="/wiki/Kambrium" title="Kambrium">kambrium</a>, den første <a href="/wiki/Geologisk_periode" class="mw-redirect" title="Geologisk periode">perioden</a> av den første <a href="/wiki/Geologisk_%C3%A6ra" class="mw-redirect" title="Geologisk æra">geologiske æraen</a> i fanerozoikum. Han er kalla opp etter det romerske namnet på <a href="/wiki/Wales" title="Wales">Wales</a> - <a href="/wiki/Cambria" title="Cambria">Cambria</a> - der bergartar frå denne tidsalderen vart studert. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Oversyn">Oversyn</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=1" title="Endre bolk: Oversyn" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=1" title="Rediger kildekoden til seksjonen Oversyn"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ein veit særs lite om prekambrium trass i at perioden varte om lag sju åttandedelar av jorda si historie, og det vesle ein veit er stort sett oppdaga dei siste 40-50 åra. Ein har funne få <a href="/wiki/Fossil" title="Fossil">fossilar</a> frå prekambrium og dei fossila som er funne (som av <a href="/wiki/Stromatolitt" title="Stromatolitt">stromatolittar</a>) vert stort sett berre nytta til <a href="/wiki/Biostratigrafi" title="Biostratigrafi">biostratigrafisk</a> arbeid.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Mange prekambriske bergartar er sterkt <a href="/wiki/Metamorf_bergart" title="Metamorf bergart">metamorfe</a> og skjuler korleis dei oppstod, medan andre anten er øydelagd av erosjon eller ligg gravlagd djupt under lag frå fanerozoikum.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Ein meiner at sjølve jorda oppstod av stoff som krinsa rundt sola for om lag 4500 millionar år sidan og kan ha vorte treft av ein særs stor <a href="/wiki/Planetesimal" title="Planetesimal">planetesimal</a> på storleik med <a href="/wiki/Planeten_Mars" title="Planeten Mars">planeten Mars</a> kort tid etter at ho vart forma. Delar av materialet frå samanstøyten kom i saman og forma <a href="/wiki/M%C3%A5nen" title="Månen">månen</a>. Ei stabil jordskorpe var truleg på plass for rundt 4400 millionar år sidan, sidan <a href="/wiki/Zirkon" title="Zirkon">zirkonkrystallar</a> frå Vest-<a href="/wiki/Australia" title="Australia">Australia</a> har vorte datert til 4404 Ma (millionar år sidan). </p><p>Uttrykket prekambrisk er noko utdatert, men er framleis ofte i bruk hos <a href="/wiki/Geolog" title="Geolog">geologar</a> og <a href="/wiki/Paleontolog" class="mw-redirect" title="Paleontolog">paleontologar</a>. Eonet vart ei kort stund òg kalla <b>kryptozoikum</b>. Dei føretrekte uttrykka <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a>, <a href="/wiki/Arkeikum" title="Arkeikum">arkeikum</a> og <a href="/w/index.php?title=Hadeiukm&action=edit&redlink=1" class="new" title="Hadeiukm (sida finst ikkje)">hadeiukm</a> ser ut til å ta over som namn på eonet etter kvart. </p> <div class="mw-heading mw-heading2"><h2 id="Livet_før_kambrium"><span id="Livet_f.C3.B8r_kambrium"></span>Livet før kambrium</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=2" title="Endre bolk: Livet før kambrium" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=2" title="Rediger kildekoden til seksjonen Livet før kambrium"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="boilerplate seealso"> <dl><dd><i>For meir om dette emnet, sjå <a href="/wiki/Abiogenese" title="Abiogenese">abiogenese</a>.</i></dd></dl></div> <p>Ein veit ikkje kor tid livet oppstod, men karbon i 3800 millionar år gammal stein frå øyar utanfor Vest-<a href="/wiki/Gr%C3%B8nland" title="Grønland">Grønland</a> kan vere av organisk opphav. Godt bevarte <a href="/wiki/Bakterie" class="mw-redirect" title="Bakterie">bakteriar</a> eldre enn 3460 millionar år er funne vest i <a href="/wiki/Australia" title="Australia">Australia</a>. Fossil som truleg er 100 millionar år eldre er funne i same området. Frå den tid og resten av prekambrium har ein mange spor etter bakteriar. </p><p>Dei første fleircella livsformene ser ut til å ha oppstått for rundt 600 millionar år sidan, om ein ser bort frå eit par omstridde funn som kan vere eldre frå <a href="/wiki/Texas" title="Texas">Texas</a> og <a href="/wiki/India" title="India">India</a>. I perioden mellom 542 og 600 millionar år sidan har ein ei forholdsvis variert samling av blaute livsformer frå fleire stader i verda. Desse vert kalla <i><a href="/w/index.php?title=Ediacarafaunaen&action=edit&redlink=1" class="new" title="Ediacarafaunaen (sida finst ikkje)">Ediacarafaunaen</a></i>. Livsformer med eit hardt ytre dukka opp mot slutten av prekambrium. </p><p>Ei særs mangfaldig samling av livsformer dukkar opp rundt 544 Ma, mot slutten av prekambrium, med ein lite forstått <i><a href="/w/index.php?title=Sm%C3%A5muslingsfauna&action=edit&redlink=1" class="new" title="Småmuslingsfauna (sida finst ikkje)">småmuslingsfauna</a></i> og endar med ein særs tidleg kambrisk og mangfaldig <a href="/w/index.php?title=Burgess-skifer&action=edit&redlink=1" class="new" title="Burgess-skifer (sida finst ikkje)">burgessfauna</a>. Denne raske utviklinga av livsformer vert kalla <i><a href="/wiki/Den_kambriske_eksplosjonen" title="Den kambriske eksplosjonen">den kambriske eksplosjonen</a></i>. </p> <div class="mw-heading mw-heading2"><h2 id="Miljøet_på_jorda_og_oksygenkatastrofen"><span id="Milj.C3.B8et_p.C3.A5_jorda_og_oksygenkatastrofen"></span>Miljøet på jorda og oksygenkatastrofen</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=3" title="Endre bolk: Miljøet på jorda og oksygenkatastrofen" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=3" title="Rediger kildekoden til seksjonen Miljøet på jorda og oksygenkatastrofen"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ein har lite kjennskap til <a href="/wiki/Platetektonikk" title="Platetektonikk">platetektonikk</a> og slikt i prekambrium. Generelt trur ein at det fanst små proto-kontinent før 3000 Ma, og det meste av landmassane på jorda samla seg i eit enkelt <a href="/wiki/Superkontinent" title="Superkontinent">superkontinent</a> rundt 1000 Ma. Superkontinentet vert kalla <a href="/wiki/Rodinia" title="Rodinia">Rodinia</a> og braut opp i fleire kontinent for rundt 600 Ma. Fleire <a href="/wiki/Istid" title="Istid">istider</a> har vorte identifisert heilt tilbake til <a href="/w/index.php?title=Huronistida&action=edit&redlink=1" class="new" title="Huronistida (sida finst ikkje)">huronistida</a> for om lag 2200 Ma. Den best studerte er <a href="/wiki/Kryogenium" title="Kryogenium">den sturtiske-varangiske istida</a> for rundt 600 Ma, som kan ha ført til isbredanning heilt til ekvator og danna ei «<a href="/wiki/Sn%C3%B8balljord" class="mw-redirect" title="Snøballjord">snøballjord</a>». </p><p><a href="/wiki/Jordatmosf%C3%A6ren" title="Jordatmosfæren">Jordatmosfæren</a> i denne perioden er lite kjend, men ein trur <a href="/w/index.php?title=Redoksprosess&action=edit&redlink=1" class="new" title="Redoksprosess (sida finst ikkje)">reduksjonsgassar</a> dominerte og at han inneheld lite fritt <a href="/wiki/Oksygen" title="Oksygen">oksygen</a>. Den unge planeten hadde truleg ein raudaktig farge og hava var kanskje olivengrøne. Mange stoff med uoppløyselege oksyd ser ut til å ha eksistert i hava i hundrevis av millionar av år etter at jorda oppstod. </p><p>Etter kvart som livsformene byrja å utvikle <a href="/wiki/Fotosyntese" title="Fotosyntese">fotosyntese</a> og det vart produsert store mengder oksygen. Dette skapte ei økologisk krise som stundom vert kalla <a href="/wiki/Oksygenkatastrofen" title="Oksygenkatastrofen">oksygenkatastrofen</a>. Oksygenet vart med ein gong butte faste i kjemiske reaksjonar, hovudsakleg med jern, fram til den oksiderbare overflata forsvann og oksygenet byrja å samle seg opp i atmosfæren. Eldre bergartar inneheld <a href="/w/index.php?title=Lagdelte_jernrike_bergartar&action=edit&redlink=1" class="new" title="Lagdelte jernrike bergartar (sida finst ikkje)">lagdelt jern</a> som tilsynelatande vart lagt ned då jern og oksygen først kombinerte. </p> <div class="mw-heading mw-heading2"><h2 id="Inndeling">Inndeling</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=4" title="Endre bolk: Inndeling" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=4" title="Rediger kildekoden til seksjonen Inndeling"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Mange faguttrykk er nytta om dei første åra jorda eksisterte, men ein har etter kvart starta å samle seg rundt felles uttrykk for periodar ved hjelp <a href="/wiki/Radiometrisk_datering" title="Radiometrisk datering">radiometrisk datering</a> der ein kan finne spesifikke formasjonar og trekk. Uttrykka <a href="/wiki/Arkeikum" title="Arkeikum">arkeikum</a> (eldre enn 2500 Ma), <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a> (2500-600 Ma) og <a href="/wiki/Neoproterozoikum" title="Neoproterozoikum">neoproterozoikum</a> (600-542 Ma). </p> <ul><li><a href="/wiki/Proterozoikum" title="Proterozoikum">Proterozoikum</a>: I dag stort sett nytta om perioden frå <a href="/wiki/Kambrium" title="Kambrium">kambrium</a> for 542 millionar år sidan til 2500 millionar år sidan. Forskjellige fagfolk nytta tidlegare forskjellige grenser, men 542 Ma er i dag standard. Tidlegare vart det òg nytta synonymt med «prekambrium» og derfor nytta om heile perioden før kambrium. <ul><li><a href="/wiki/Neoproterozoikum" title="Neoproterozoikum">Neoproterozoikum</a>: Øvre (eller yngste) <a href="/wiki/Geologisk_%C3%A6ra" class="mw-redirect" title="Geologisk æra">geologiske æra</a> i <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a>, går om lag frå <a href="/wiki/Kambrium" title="Kambrium">kambrium</a> til om lag 900 millionar år sidan, men i dag nyttar forskarar ofte æraen om ein kortare tidsintervall, 542-600 Ma. Neoproterozoikum tilsvarar <i>prekambrium Z</i> i eldre nordamerikansk geologi. <ul><li><a href="/wiki/Ediacara" title="Ediacara">Ediacara</a> : I mars 2004 definerte <a href="/wiki/International_Union_of_Geological_Sciences" title="International Union of Geological Sciences">International Union of Geological Sciences</a> offisielt uttrykket for å skildre denne <a href="/wiki/Geologisk_periode" class="mw-redirect" title="Geologisk periode">geologiske perioden</a>. Perioden startar då eit visst lag med avleiringar oppstod for rundt 620 millionar år sidan. Denne perioden endar med byrjinga av kambrium, 542 millionar år sidan. I denne perioden oppstod <a href="/w/index.php?title=Edicarafaunaen&action=edit&redlink=1" class="new" title="Edicarafaunaen (sida finst ikkje)">Edicarafaunaen</a>.</li> <li><a href="/wiki/Kryogenium" title="Kryogenium">Kryogenium</a> er ei føreslått inndeling av <a href="/wiki/Neoproterozoikum" title="Neoproterozoikum">neoproterozoikum</a>.</li> <li><a href="/wiki/Tonium" title="Tonium">Tonium</a> er ei føreslått inndeling av <a href="/wiki/Neoproterozoikum" title="Neoproterozoikum">neoproterozoikum</a>.</li></ul></li> <li><a href="/wiki/Mesoproterozoikum" title="Mesoproterozoikum">Mesoproterozoikum</a> er den midtre perioden av <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a> og varte frå om lag 900 til 1600 Ma. Han tilsvarer «prekambrium Y» i eldre nordamerikansk geologi.</li> <li><a href="/wiki/Paleoproterozoikum" title="Paleoproterozoikum">Paleoproterozoikum</a> er den eldste perioden i <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a> og varte frå om lag 1600-2500 Ma. Han tilsvarer «prekambrium X» i eldre nordamerikansk geologi.</li></ul></li> <li><a href="/wiki/Arkeikum" title="Arkeikum">Arkeikum</a> varte frå om lag 2500-3800 Ma.</li> <li><a href="/wiki/Hadeikum" title="Hadeikum">Hadeikum</a> er perioden før 3800 Ma. Dette uttrykket vart opphavleg tenkt brukt om perioden som er eldre enn dei eldste bergartane som finst på jorda i dag, sjølv om det finst eit par bergartar som er noko eldre enn 3800 Ma. Enkelte <a href="/wiki/Zirkon" title="Zirkon">zirkonkrystallar</a> frå om lag 4400 Ma viser at de var fast jordskorpe i eonet hadeikum. Andre registreringar frå hadeikum kjem frå <a href="/wiki/M%C3%A5nen" title="Månen">månen</a> og <a href="/wiki/Meteoritt" title="Meteoritt">meteorittar</a>.</li></ul> <p>Det har vorte føreslått å dele prekambrium inn i eon og æraer som samsvarar med utviklinga til planeten i staden for dei noverande periodane som er basert på numeriske år. Prekambrium kan delast inn i fem «naturlege» eon som følgjer:<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <ol><li>Akkreasjon og differensiering: Perioden der planeten vart danna fram til han kolliderte med ein annan planetstor lekam.</li> <li>Hadeikum: Perioden med <a href="/w/index.php?title=Det_store_tunge_bombardementet&action=edit&redlink=1" class="new" title="Det store tunge bombardementet (sida finst ikkje)">det store tunge bombardementet</a>.</li> <li>Arkeiukum: Perioden då den første jordskorpa vart danna <a href="/wiki/Gr%C3%B8nstein" title="Grønstein">grønsteinbeltet</a> fram til <a href="/w/index.php?title=Lagdelte_jernrike_bergartar&action=edit&redlink=1" class="new" title="Lagdelte jernrike bergartar (sida finst ikkje)">lagdelte jernrike bergartar</a> vart lagt ned på grunn av auka oksygeninnhald i atmosfæren.</li> <li>Overgangsperiode: Perioden då <a href="/w/index.php?title=Lagdelte_jernrike_bergartar&action=edit&redlink=1" class="new" title="Lagdelte jernrike bergartar (sida finst ikkje)">lagdelte jernrike bergartar</a> oppstod og fram til dei første kontinentale <a href="/w/index.php?title=Raude_lag&action=edit&redlink=1" class="new" title="Raude lag (sida finst ikkje)">raude laga</a>.</li> <li>Proterozoikum: ein periode med moderne <a href="/wiki/Platetektonikk" title="Platetektonikk">platetektonikk</a> fram til dei første <a href="/wiki/Dyr" title="Dyr">dyra</a> oppstod.</li></ol> <div class="mw-heading mw-heading2"><h2 id="I_Noreg">I Noreg</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=5" title="Endre bolk: I Noreg" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=5" title="Rediger kildekoden til seksjonen I Noreg"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Bergartane frå prekambrium i Noreg er det me kallar <a href="/wiki/Grunnfjell" title="Grunnfjell">grunnfjell</a>. Det aller eldste grunnfjellet finn ein <a href="/wiki/Finnmark" class="mw-redirect" title="Finnmark">Finnmark</a> og <a href="/wiki/Lofoten" title="Lofoten">Lofoten</a>, og desse er 3100 til 2700 millionar år gamle, medan grunnfjellet elles i landet som regel er mellom 2100-1500 til 1100-900 millionar år gamle. I Finnmark og omkring <a href="/wiki/Mj%C3%B8sa" title="Mjøsa">Mjøsa</a> har ein tjukke avsettingar frå sein <a href="/wiki/Proterozoikum" title="Proterozoikum">proterozoikum</a> med grove og <a href="/wiki/Feltspat" title="Feltspat">feltspatrike</a> <a href="/wiki/Sandstein" title="Sandstein">sandsteinar</a> kalla <a href="/wiki/Sparagmitt" title="Sparagmitt">sparagmittar</a> og <a href="/wiki/Tillitt" title="Tillitt">tillittar</a> som ligg oppå grunnfjellet. Ein del av dette kan vere danna under ei eller fleire istider for noko over 600 millionar år sidan. Denne istidsperioden vert kalla <a href="/wiki/Varangeristida" title="Varangeristida">Varangeristida</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Kjelder">Kjelder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=6" title="Endre bolk: Kjelder" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=6" title="Rediger kildekoden til seksjonen Kjelder"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small"> <ul><li><i>Denne artikkelen bygger på «<a href="https://en.wikipedia.org/wiki/Precambrium" class="extiw" title="en:Precambrium">Precambrium</a>» frå <a href="https://en.wikipedia.org/wiki/Main_Page" class="extiw" title="en:Main Page">Wikipedia på engelsk</a>, den 16. august 2008.</i> <ul><li><i><a href="https://en.wikipedia.org/wiki/Main_Page" class="extiw" title="en:Main Page">Wikipedia på engelsk</a> oppgav desse kjeldene:</i></li> <li>Valley, John W., William H. Peck, Elizabeth M. King (1999) <i>Zircons Are Forever</i>, The Outcrop for 1999, University of Wisconsin-Madison <a rel="nofollow" class="external text" href="http://www.geology.wisc.edu/~valley/zircons/zircon_home.html">Wgeology.wisc.edu</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120316170539/http://www.geology.wisc.edu/~valley/zircons/zircon_home.html">Arkivert</a> 2012-03-16 ved <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>. – <i>Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago</i> Vitja 16. august 2008</li> <li>Wilde S.A., Valley J.W., Peck W.H. ogGraham C.M. (2001) <i>Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago.</i> Nature, v. 409, s. 175-178.</li> <li>Wyche, S., D. R. Nelson og A. Riganti (2004) <i>4350–3130 Ma detrital zircons in the Southern Cross Granite–Greenstone Terrane, Western Australia: implications for the early evolution of the Yilgarn Craton</i>, Australian Journal of Earth Sciences Volume 51 <a rel="nofollow" class="external text" href="http://www.blackwell-synergy.com/doi/abs/10.1046/j.1400-0952.2003.01042.x?cookieSet=1">Zircon ages from W. Australia - Abstract</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060713233125/http://www.blackwell-synergy.com/doi/abs/10.1046/j.1400-0952.2003.01042.x?cookieSet=1">Arkivert</a> 2006-07-13 ved <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>. Vitja 16. august 2008</li></ul></li></ul> </div> <style data-mw-deduplicate="TemplateStyles:r3318915">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">James Monroe og Reed Wicander, <i>The Changing Earth</i>, 2. ut., (Belmont: Wadsworth Publishing Company, 1997), s. 492.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Monroe and Wicander, s. 492.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><cite class="citation"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070102053034/http://www.gpc.edu/~pgore/geology/geo102/precamb.htm"><i>Pamela J.W. Gore, "The Precambrian". Vitja 16. august 2008</i></a>, arkivert frå <a rel="nofollow" class="external text" href="http://gpc.edu/~pgore/geology/geo102/precamb.htm">originalen</a> 2. januar 2007<span class="reference-accessdate">, henta 16. august 2008</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fnn.wikipedia.org%3APrekambrium&rft.btitle=Pamela+J.W.+Gore%2C+%22The+Precambrian%22.+Vitja+16.+august+2008&rft.genre=book&rft_id=http%3A%2F%2Fgpc.edu%2F~pgore%2Fgeology%2Fgeo102%2Fprecamb.htm&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><cite class="citation book">W. Bleeker (2004). «Toward a "natural" Precambrian time scale». I Felix M. Gradstein, James G. Ogg, og Alan G. Smith. <i>A Geologic Time Scale 2004</i>. Cambridge University Press. <a href="/wiki/Spesial:Bokkjelder/0521786738" class="internal mw-magiclink-isbn">ISBN 0-521-78673-8</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fnn.wikipedia.org%3APrekambrium&rft.atitle=Toward+a+%22natural%22+Precambrian+time+scale&rft.au=W.+Bleeker&rft.btitle=A+Geologic+Time+Scale+2004&rft.date=2004&rft.genre=bookitem&rft.pub=Cambridge+University+Press&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span><span class="citation-comment" style="display:none; color:#33aa33"> CS1 maint: Multiple names: editors list (<a href="/wiki/Kategori:CS1_maint:_Multiple_names:_editors_list" title="Kategori:CS1 maint: Multiple names: editors list">link</a>)</span></span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Andre_kjelder">Andre kjelder</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=7" title="Endre bolk: Andre kjelder" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=7" title="Rediger kildekoden til seksjonen Andre kjelder"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a rel="nofollow" class="external text" href="https://snl.no/prekambrium">«prekambrium, prekambrium_-_fossiler»</a> av Inge Bryhni i <i><a href="/wiki/Store_norske_leksikon" title="Store norske leksikon">Store norske leksikon</a></i>, snl.no. </p> <div class="mw-heading mw-heading2"><h2 id="Bakgrunnsstoff">Bakgrunnsstoff</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Prekambrium&veaction=edit&section=8" title="Endre bolk: Bakgrunnsstoff" class="mw-editsection-visualeditor"><span>endre</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Prekambrium&action=edit&section=8" title="Rediger kildekoden til seksjonen Bakgrunnsstoff"><span>endre wikiteksten</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.scotese.com/precambr.htm">Prekambrisk superkontinent og isverda</a></li></ul> <table class="toccolours" style="margin-left:auto; margin-right:auto;text-align:center;"> <tbody><tr> <th style="background:rgb(226,0,122);" colspan="3"><a class="mw-selflink selflink">Prekambrium</a> </th> <th style="background:rgb(154,217,221);width:100px;" rowspan="2"><a href="/wiki/Fanerozoikum" title="Fanerozoikum">Fanerozoikum</a> </th> <th>  </th></tr> <tr> <th style="background:rgb(221,47,135);width:100px;"><a href="/wiki/Hadeikum" title="Hadeikum">Hadeikum </a> </th> <th style="background:rgb(226,0,122);width:100px;"><a href="/wiki/Arkeikum" title="Arkeikum">Arkeikum</a> </th> <th style="background:rgb(232,82,113);width:100px;"><a href="/wiki/Proterozoikum" title="Proterozoikum">Proterozoikum</a> </th></tr></tbody></table> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r3515230">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist 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