About: Arctic Alaska-Chukotka terrane

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The Arctic Alaska-Chukotka terrane (AAC) is a microcontinent that today encompasses the North Slope, Brooks Range, and Seward Peninsula of northern Alaska; the Chukotka Peninsula, New Siberia Islands, and Wrangel Island in eastern Siberia; and the continental shelves of the Bering, Beaufort, and Chukchi seas. Comparable in size to Greenland, the AAC is the largest of the Neoproterozoic–early Paleozoic continental fragments now dispersed around the Arctic Ocean; some of which possibly formed the continent Arctida.

Attributes	Values
rdfs:label	Arctic Alaska-Chukotka terrane (en)
rdfs:comment	The Arctic Alaska-Chukotka terrane (AAC) is a microcontinent that today encompasses the North Slope, Brooks Range, and Seward Peninsula of northern Alaska; the Chukotka Peninsula, New Siberia Islands, and Wrangel Island in eastern Siberia; and the continental shelves of the Bering, Beaufort, and Chukchi seas. Comparable in size to Greenland, the AAC is the largest of the Neoproterozoic–early Paleozoic continental fragments now dispersed around the Arctic Ocean; some of which possibly formed the continent Arctida. (en)
foaf:depiction
dcterms:subject	Geology of the Arctic Ocean Terranes
Wikipage page ID	57940553 (xsd:integer)
Wikipage revision ID	1031857589 (xsd:integer)
Link from a Wikipage to another Wikipage	Carboniferous Amerasia Basin Proterozoic Beaufort Sea Bering Sea Alleghanian orogeny Geology of the Arctic Ocean Chukchi Sea Ellesmere Island Orogeny Cadomian Orogeny Brooks Range Timanide Orogen Triassic Laurentia Alaska North Slope Terranes Baltica Basement (geology) Paleozoic Jurassic Panthalassa Avalonia Grenville Orogeny Iapetus Ocean Mesozoic Neoproterozoic Caledonian Orogeny Wrangel Island Seward Peninsula Siberia (continent) Terrane Chukotka Peninsula Arctida Microcontinent New Siberia Islands
Link from a Wikipage to an external page	https://par.nsf.gov/servlets/purl/10025310
sameAs	Arctic Alaska-Chukotka terrane Arctic Alaska-Chukotka terrane
dbp:wikiPageUsesTemplate	dbt:Geology-stub dbt:Abbr dbt:Circa dbt:Cite_journal dbt:Multiple_image dbt:Refbegin dbt:Refend dbt:Reflist dbt:Short_description
thumbnail	wiki-commons:Special:FilePath/Arctic_Alaska-Chukotka_150Ma.jpg?width=300
footer	The Arctic Alaska-Chukotka terrane at 150, 100, 50, and 0 Ma. View centered on the North Pole. (en)
image	Arctic Alaska-Chukotka 0Ma.jpg (en) Arctic Alaska-Chukotka 100Ma.jpg (en) Arctic Alaska-Chukotka 150Ma.jpg (en) Arctic Alaska-Chukotka 50Ma.jpg (en)
perrow	2 (xsd:integer)
total width	600 (xsd:integer)
has abstract	The Arctic Alaska-Chukotka terrane (AAC) is a microcontinent that today encompasses the North Slope, Brooks Range, and Seward Peninsula of northern Alaska; the Chukotka Peninsula, New Siberia Islands, and Wrangel Island in eastern Siberia; and the continental shelves of the Bering, Beaufort, and Chukchi seas. Comparable in size to Greenland, the AAC is the largest of the Neoproterozoic–early Paleozoic continental fragments now dispersed around the Arctic Ocean; some of which possibly formed the continent Arctida. The AAC originated on the shores of the Iapetus Ocean and is a composite terrane made of fragments from the Baltica, Laurentia, and Siberia continents, as well as the ocean floor of the Panthalassic ocean. The AAC has a complex geological history that includes the Grenville, Timanian, Caledonian–Appalachian, and Ellesmerian orogenies. The Proterozoic–Carboniferous histories of Arctic Alaska and Chukotka are similar but their Triassic–Jurassic histories are apparently distinct. Whether or not they were separate blocks before the Mesozoic opening of the Amerasia Basin is disputed.The age of the basement of the AAC remains enigmatic, hence also details about the microcontinent's ancient, tectonic history. It is, nevertheless, clear from Neoproterozoic igneous rocks that the AAC was not originally part of Laurentia, but most likely Baltica. The microcontinent was obviously involved in a series of magmatic events, beginning at c. 1.6–1.4 Ga, and ending in the Avalonia–Cadomian orogeny. (en)
prov:wasDerivedFrom	wikipedia-en:Arctic_Alaska-Chukotka_terrane?oldid=1031857589&ns=0
page length (characters) of wiki page	4833 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Arctic_Alaska-Chukotka_terrane
is Link from a Wikipage to another Wikipage of	Amerasia Basin Chukchi Sea Alaska North Slope Early Cretaceous Baltica Chukchi Peninsula New Siberian Islands
is foaf:primaryTopic of	wikipedia-en:Arctic_Alaska-Chukotka_terrane

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