Laurentia
[[Ladawan:North_america_basement_rocks.png|thumb|Laurentia basement rocks]]
An '''Laurentia''' o an '''Amihanan na Amerikanong Kraton''' iyo an sarong dakulang continental [[craton]] na minaporma sa [[Geology of North America|ancient geological core]] kan [[Amihanan na Amerika]]. Dakol na panahon sa saiyang nakaagi, an Laurentia nagin sarong suhay na [[kontinente]], huli ta iyan yaon na sa porma kan Amihanan na Amerika, minsan ngani orihinal na kabali diyan an mga ''cratonic areas'' kan [[Greenland]] asin an [[Hebridean Terrane]] sa amihanan-solnopan na [[Scotland]]. Durante kan ibang panahon sa saiyang nakaagi, an Laurentia nagin kabtang kan darakulang kontinente asin [[Superkontinente|supercontinents]] asin kompwesto nin dakol na saradit na [[Terrane|terranes]] nakabugtak sa sarong network kan amay na [[Proterozoic]] [[Orogenic belt|orogenic belts]]. An mga sadit na [[Mikrokontinente|microcontinents]] asin mga isla sa kadagatan an nagbarangaan asin [[Suture (geology)|sutured]] pasiring sa padagos na nagtatalubong Laurentia, asin dungan na naporma an permanente nang [[Precambrian]] craton na nahihiling sa ngunyan.<ref name="Hoffman-1988">{{Cite journal|last=Hoffman|first=Paul F.|year=1988|title=United Plates of America, The Birth of a Craton: Early Proterozoic Assembly and Growth of Laurentia|journal=Annual Review of Earth and Planetary Sciences|volume=16|pages=543–603|doi=10.1146/annurev.ea.16.050188.002551|bibcode=1988AREPS..16..543H|url=https://www.annualreviews.org/doi/pdf/10.1146/annurev.ea.16.050188.002551|access-date=25 April 2020|archive-date=7 September 2020|archive-url=https://web.archive.org/web/20200907065718/https://www.annualreviews.org/doi/pdf/10.1146/annurev.ea.16.050188.002551|url-status=live}}</ref><ref>{{Cite news|last=Dalziel|first=I.W.D.|year=1992|title=On the organization of American Plates in the Neoproterozoic and the breakout of Laurentia|work=GSA Today|volume=2|issue=11|pages=237–241|url=https://www.geosociety.org/gsatoday/archive/2/11/pdf/i1052-5173-2-11-sci.pdf|access-date=25 April 2020|archive-date=17 October 2016|archive-url=https://web.archive.org/web/20161017222645/http://www.geosociety.org/gsatoday/archive/2/11/pdf/i1052-5173-2-11-sci.pdf|url-status=live}}</ref><ref name="wk2007">{{cite journal|last1=Whitmeyer|first1=Steven|last2=Karlstrom|first2=Karl E.|journal=Geosphere|date=2007|volume=3|issue=4|pages=220|doi=10.1130/GES00055.1|title=Tectonic model for the Proterozoic growth of North America|doi-access=free}}</ref>

==Toltolan==
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An Laurentia o an Amihanan na Amerikanong Kraton iyo an sarong dakulang continental craton na minaporma sa ancient geological core kan Amihanan na Amerika. Dakol na panahon sa saiyang nakaagi, an Laurentia nagin sarong suhay na kontinente, huli ta iyan yaon na sa porma kan Amihanan na Amerika, minsan ngani orihinal na kabali diyan an mga cratonic areas kan Greenland asin an Hebridean Terrane sa amihanan-solnopan na Scotland. Durante kan ibang panahon sa saiyang nakaagi, an Laurentia nagin kabtang kan darakulang kontinente asin supercontinents asin kompwesto nin dakol na saradit na terranes nakabugtak sa sarong network kan amay na Proterozoic orogenic belts. An mga sadit na microcontinents asin mga isla sa kadagatan an nagbarangaan asin sutured pasiring sa padagos na nagtatalubong Laurentia, asin dungan na naporma an permanente nang Precambrian craton na nahihiling sa ngunyan.

Toltolan