Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA
Arctic Alaska is a ‘suspect’ terrane that encompasses approximately 20% of Alaska, stretching from the southern Brooks Range all the way to the continental shelves of the Chukchi and Beaufort Seas. Although the origin and subsequent travels of this large crustal fragment are debated among geologists...
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ftdoajarticles:oai:doaj.org/article:95cea00864b3445b82838ea8b77f82be 2023-10-09T21:48:28+02:00 Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA Justin V. Strauss Carl W. Hoiland Lyle L. Nelson 2017-07-01T00:00:00Z https://doi.org/10.1016/j.gsf.2017.02.004 https://doaj.org/article/95cea00864b3445b82838ea8b77f82be EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S1674987117300336 https://doaj.org/toc/1674-9871 1674-9871 doi:10.1016/j.gsf.2017.02.004 https://doaj.org/article/95cea00864b3445b82838ea8b77f82be Geoscience Frontiers, Vol 8, Iss 4, Pp 915-918 (2017) Arctic Alaska Doonerak fenster Brooks Range Apoon assemblage Geology QE1-996.5 article 2017 ftdoajarticles https://doi.org/10.1016/j.gsf.2017.02.004 2023-09-10T00:50:08Z Arctic Alaska is a ‘suspect’ terrane that encompasses approximately 20% of Alaska, stretching from the southern Brooks Range all the way to the continental shelves of the Chukchi and Beaufort Seas. Although the origin and subsequent travels of this large crustal fragment are debated among geologists, most researchers agree upon its composite nature and exotic origin. To constrain the early geological history of this terrane, we describe a recent expedition to the Doonerak fenster of the central Brooks Range. This area has long been regarded as a key locality for understanding the structural evolution of the Mesozoic–Cenozoic Brooks Range orogen; however, our target was different: a unique sequence of volcanic and siliciclastic rocks (Apoon assemblage) exposed beneath a profound pre-Mississippian unconformity, which we argue is of key importance to understanding the early Paleozoic tectonic history of northern Alaska and the greater Arctic. Article in Journal/Newspaper Arctic Brooks Range Chukchi Alaska Directory of Open Access Journals: DOAJ Articles Arctic Geoscience Frontiers 8 4 915 918 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Alaska Doonerak fenster Brooks Range Apoon assemblage Geology QE1-996.5 |
spellingShingle |
Arctic Alaska Doonerak fenster Brooks Range Apoon assemblage Geology QE1-996.5 Justin V. Strauss Carl W. Hoiland Lyle L. Nelson Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
topic_facet |
Arctic Alaska Doonerak fenster Brooks Range Apoon assemblage Geology QE1-996.5 |
description |
Arctic Alaska is a ‘suspect’ terrane that encompasses approximately 20% of Alaska, stretching from the southern Brooks Range all the way to the continental shelves of the Chukchi and Beaufort Seas. Although the origin and subsequent travels of this large crustal fragment are debated among geologists, most researchers agree upon its composite nature and exotic origin. To constrain the early geological history of this terrane, we describe a recent expedition to the Doonerak fenster of the central Brooks Range. This area has long been regarded as a key locality for understanding the structural evolution of the Mesozoic–Cenozoic Brooks Range orogen; however, our target was different: a unique sequence of volcanic and siliciclastic rocks (Apoon assemblage) exposed beneath a profound pre-Mississippian unconformity, which we argue is of key importance to understanding the early Paleozoic tectonic history of northern Alaska and the greater Arctic. |
format |
Article in Journal/Newspaper |
author |
Justin V. Strauss Carl W. Hoiland Lyle L. Nelson |
author_facet |
Justin V. Strauss Carl W. Hoiland Lyle L. Nelson |
author_sort |
Justin V. Strauss |
title |
Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
title_short |
Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
title_full |
Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
title_fullStr |
Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
title_full_unstemmed |
Field report: Exploring the Doonerak fenster of the central Brooks Range, Alaska, USA |
title_sort |
field report: exploring the doonerak fenster of the central brooks range, alaska, usa |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.gsf.2017.02.004 https://doaj.org/article/95cea00864b3445b82838ea8b77f82be |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Brooks Range Chukchi Alaska |
genre_facet |
Arctic Brooks Range Chukchi Alaska |
op_source |
Geoscience Frontiers, Vol 8, Iss 4, Pp 915-918 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674987117300336 https://doaj.org/toc/1674-9871 1674-9871 doi:10.1016/j.gsf.2017.02.004 https://doaj.org/article/95cea00864b3445b82838ea8b77f82be |
op_doi |
https://doi.org/10.1016/j.gsf.2017.02.004 |
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Geoscience Frontiers |
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8 |
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4 |
container_start_page |
915 |
op_container_end_page |
918 |
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1779311540552335360 |