Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic
This paper synthesizes the framework and geological evolution of the Arctic Alaska–Chukotka microplate (AACM), from its origin as part of the continental platform fringing Baltica and Laurentia to its southward motion during the formation of the Amerasia Basin (Arctic Ocean) and its progressive modi...
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ftdatacite:10.6084/m9.figshare.c.3826813.v1 2023-05-15T14:38:15+02:00 Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic Miller, Elizabeth L. Meisling, Kristian E. Akinin, Vyacheslav V. Brumley, Kelley Coakley, Bernard J. Gottlieb, Eric S. Hoiland, Carl W. O'Brien, Timothy M. Soboleva, Anna Toro, Jaime 2017 https://dx.doi.org/10.6084/m9.figshare.c.3826813.v1 https://figshare.com/collections/Circum-Arctic_Lithosphere_Evolution_CALE_Transect_C_displacement_of_the_Arctic_Alaska_Chukotka_microplate_towards_the_Pacific_during_opening_of_the_Amerasia_Basin_of_the_Arctic/3826813/1 unknown Figshare https://dx.doi.org/10.1144/sp460.9 https://dx.doi.org/10.6084/m9.figshare.c.3826813 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Geology FOS Earth and related environmental sciences Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3826813.v1 https://doi.org/10.1144/sp460.9 https://doi.org/10.6084/m9.figshare.c.3826813 2021-11-05T12:55:41Z This paper synthesizes the framework and geological evolution of the Arctic Alaska–Chukotka microplate (AACM), from its origin as part of the continental platform fringing Baltica and Laurentia to its southward motion during the formation of the Amerasia Basin (Arctic Ocean) and its progressive modification as part of the dynamic northern palaeo-Pacific margin. A synthesis of the available data refines the crustal identity, limits and history of the AACM and, together with regional geological constraints, provides a tectonic framework to aid in its pre-Cretaceous restoration. Recently published seismic reflection data and interpretations, integrated with regional geological constraints, provide the basis for a new crustal transect (the Circum-Arctic Lithosphere Evolution (`CALE') Transect C) linking the Amerasia Basin and the Pacific margin along two paths that span 5100 km from the Lomonosov Ridge (near the North Pole), across the Amerasia Basin, Chukchi Sea and Bering Sea, and ending at the subducting Pacific plate margin in the Aleutian Islands. We propose a new plate tectonic model in which the AACM originated as part of a re-entrant in the palaeo-Pacific margin and moved to its present position during slab-related magmatism and the southward retreat of palaeo-Pacific subduction, largely coeval with the rifting and formation of the Amerasia Basin in its wake. Article in Journal/Newspaper Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea Chukotka Lomonosov Ridge North Pole Alaska Aleutian Islands DataCite Metadata Store (German National Library of Science and Technology) Amerasia Basin ENVELOPE(-170.000,-170.000,80.000,80.000) Arctic Arctic Ocean Bering Sea Chukchi Sea North Pole Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Geology FOS Earth and related environmental sciences |
spellingShingle |
Geology FOS Earth and related environmental sciences Miller, Elizabeth L. Meisling, Kristian E. Akinin, Vyacheslav V. Brumley, Kelley Coakley, Bernard J. Gottlieb, Eric S. Hoiland, Carl W. O'Brien, Timothy M. Soboleva, Anna Toro, Jaime Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
topic_facet |
Geology FOS Earth and related environmental sciences |
description |
This paper synthesizes the framework and geological evolution of the Arctic Alaska–Chukotka microplate (AACM), from its origin as part of the continental platform fringing Baltica and Laurentia to its southward motion during the formation of the Amerasia Basin (Arctic Ocean) and its progressive modification as part of the dynamic northern palaeo-Pacific margin. A synthesis of the available data refines the crustal identity, limits and history of the AACM and, together with regional geological constraints, provides a tectonic framework to aid in its pre-Cretaceous restoration. Recently published seismic reflection data and interpretations, integrated with regional geological constraints, provide the basis for a new crustal transect (the Circum-Arctic Lithosphere Evolution (`CALE') Transect C) linking the Amerasia Basin and the Pacific margin along two paths that span 5100 km from the Lomonosov Ridge (near the North Pole), across the Amerasia Basin, Chukchi Sea and Bering Sea, and ending at the subducting Pacific plate margin in the Aleutian Islands. We propose a new plate tectonic model in which the AACM originated as part of a re-entrant in the palaeo-Pacific margin and moved to its present position during slab-related magmatism and the southward retreat of palaeo-Pacific subduction, largely coeval with the rifting and formation of the Amerasia Basin in its wake. |
format |
Article in Journal/Newspaper |
author |
Miller, Elizabeth L. Meisling, Kristian E. Akinin, Vyacheslav V. Brumley, Kelley Coakley, Bernard J. Gottlieb, Eric S. Hoiland, Carl W. O'Brien, Timothy M. Soboleva, Anna Toro, Jaime |
author_facet |
Miller, Elizabeth L. Meisling, Kristian E. Akinin, Vyacheslav V. Brumley, Kelley Coakley, Bernard J. Gottlieb, Eric S. Hoiland, Carl W. O'Brien, Timothy M. Soboleva, Anna Toro, Jaime |
author_sort |
Miller, Elizabeth L. |
title |
Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
title_short |
Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
title_full |
Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
title_fullStr |
Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
title_full_unstemmed |
Circum-Arctic Lithosphere Evolution (CALE) Transect C: displacement of the Arctic Alaska–Chukotka microplate towards the Pacific during opening of the Amerasia Basin of the Arctic |
title_sort |
circum-arctic lithosphere evolution (cale) transect c: displacement of the arctic alaska–chukotka microplate towards the pacific during opening of the amerasia basin of the arctic |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3826813.v1 https://figshare.com/collections/Circum-Arctic_Lithosphere_Evolution_CALE_Transect_C_displacement_of_the_Arctic_Alaska_Chukotka_microplate_towards_the_Pacific_during_opening_of_the_Amerasia_Basin_of_the_Arctic/3826813/1 |
long_lat |
ENVELOPE(-170.000,-170.000,80.000,80.000) |
geographic |
Amerasia Basin Arctic Arctic Ocean Bering Sea Chukchi Sea North Pole Pacific |
geographic_facet |
Amerasia Basin Arctic Arctic Ocean Bering Sea Chukchi Sea North Pole Pacific |
genre |
Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea Chukotka Lomonosov Ridge North Pole Alaska Aleutian Islands |
genre_facet |
Arctic Arctic Ocean Bering Sea Chukchi Chukchi Sea Chukotka Lomonosov Ridge North Pole Alaska Aleutian Islands |
op_relation |
https://dx.doi.org/10.1144/sp460.9 https://dx.doi.org/10.6084/m9.figshare.c.3826813 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3826813.v1 https://doi.org/10.1144/sp460.9 https://doi.org/10.6084/m9.figshare.c.3826813 |
_version_ |
1766310358359736320 |