Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean
Abstract Fifty new heat flow measurements from the Chukchi Borderland (CBL) and adjacent regions of the central Arctic Ocean are reported, where heat flow measurements have been very limited. The average heat flow of the CBL (65 mW/m2) is significantly higher than that of the entire Amerasia Basin (...
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ftdoajarticles:oai:doaj.org/article:8dd351fb35f04daeaa6df529a309ca5a 2023-12-03T10:16:56+01:00 Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean T. Zhang Z. Y. Shen F. Zhang M. Ding 2021-12-01T00:00:00Z https://doi.org/10.1029/2021GC010033 https://doaj.org/article/8dd351fb35f04daeaa6df529a309ca5a EN eng Wiley https://doi.org/10.1029/2021GC010033 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC010033 https://doaj.org/article/8dd351fb35f04daeaa6df529a309ca5a Geochemistry, Geophysics, Geosystems, Vol 22, Iss 12, Pp n/a-n/a (2021) Arctic Ocean heat flow Chukchi Borderland extension Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.1029/2021GC010033 2023-11-05T01:35:55Z Abstract Fifty new heat flow measurements from the Chukchi Borderland (CBL) and adjacent regions of the central Arctic Ocean are reported, where heat flow measurements have been very limited. The average heat flow of the CBL (65 mW/m2) is significantly higher than that of the entire Amerasia Basin (53 mW/m2). In the CBL, the heat flow of the Chukchi Plateau (CP), Northwind Basin (NWB), and Northwind Ridge (NWR) are 64 mW/m2, 69 mW/m2, and 60 mW/m2, respectively. With the aid of nearby seismic profiles, the elevated regional heat flow in the CP and NWR was attributed to the enhanced radiogenic heating of the thick crust (25–29 km), while the most prominent heat flow in the relatively thin crust of the NWB is likely due to the residual heat of a major tectonic extension event. Further numerical heat conduction modeling suggests that the initial rifting of the Amerasia Basin during the Jurassic–Early Cretaceous could not induce such high heat flow in the NWB. Together with recent interpretations of seismic profiles, the elevated heat flow in the NWB could be explained by the residual heat of the Late Cretaceous–early Cenozoic extension. This extension event was contemporaneous with the seafloor spreading in the Makarov Basin and had also been associated with the onset of seafloor spreading in the Eurasia Basin. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi makarov basin Directory of Open Access Journals: DOAJ Articles Amerasia Basin ENVELOPE(-170.000,-170.000,80.000,80.000) Arctic Arctic Ocean Chukchi Borderland ENVELOPE(-165.000,-165.000,77.000,77.000) Eurasia Basin ENVELOPE(80.000,80.000,87.000,87.000) Makarov Basin ENVELOPE(170.000,170.000,87.000,87.000) Geochemistry, Geophysics, Geosystems 22 12 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean heat flow Chukchi Borderland extension Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
Arctic Ocean heat flow Chukchi Borderland extension Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 T. Zhang Z. Y. Shen F. Zhang M. Ding Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
topic_facet |
Arctic Ocean heat flow Chukchi Borderland extension Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract Fifty new heat flow measurements from the Chukchi Borderland (CBL) and adjacent regions of the central Arctic Ocean are reported, where heat flow measurements have been very limited. The average heat flow of the CBL (65 mW/m2) is significantly higher than that of the entire Amerasia Basin (53 mW/m2). In the CBL, the heat flow of the Chukchi Plateau (CP), Northwind Basin (NWB), and Northwind Ridge (NWR) are 64 mW/m2, 69 mW/m2, and 60 mW/m2, respectively. With the aid of nearby seismic profiles, the elevated regional heat flow in the CP and NWR was attributed to the enhanced radiogenic heating of the thick crust (25–29 km), while the most prominent heat flow in the relatively thin crust of the NWB is likely due to the residual heat of a major tectonic extension event. Further numerical heat conduction modeling suggests that the initial rifting of the Amerasia Basin during the Jurassic–Early Cretaceous could not induce such high heat flow in the NWB. Together with recent interpretations of seismic profiles, the elevated heat flow in the NWB could be explained by the residual heat of the Late Cretaceous–early Cenozoic extension. This extension event was contemporaneous with the seafloor spreading in the Makarov Basin and had also been associated with the onset of seafloor spreading in the Eurasia Basin. |
format |
Article in Journal/Newspaper |
author |
T. Zhang Z. Y. Shen F. Zhang M. Ding |
author_facet |
T. Zhang Z. Y. Shen F. Zhang M. Ding |
author_sort |
T. Zhang |
title |
Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
title_short |
Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
title_full |
Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
title_fullStr |
Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
title_full_unstemmed |
Heat Flow Distribution in the Chukchi Borderland and Surrounding Regions, Arctic Ocean |
title_sort |
heat flow distribution in the chukchi borderland and surrounding regions, arctic ocean |
publisher |
Wiley |
publishDate |
2021 |
url |
https://doi.org/10.1029/2021GC010033 https://doaj.org/article/8dd351fb35f04daeaa6df529a309ca5a |
long_lat |
ENVELOPE(-170.000,-170.000,80.000,80.000) ENVELOPE(-165.000,-165.000,77.000,77.000) ENVELOPE(80.000,80.000,87.000,87.000) ENVELOPE(170.000,170.000,87.000,87.000) |
geographic |
Amerasia Basin Arctic Arctic Ocean Chukchi Borderland Eurasia Basin Makarov Basin |
geographic_facet |
Amerasia Basin Arctic Arctic Ocean Chukchi Borderland Eurasia Basin Makarov Basin |
genre |
Arctic Arctic Ocean Chukchi makarov basin |
genre_facet |
Arctic Arctic Ocean Chukchi makarov basin |
op_source |
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 12, Pp n/a-n/a (2021) |
op_relation |
https://doi.org/10.1029/2021GC010033 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2021GC010033 https://doaj.org/article/8dd351fb35f04daeaa6df529a309ca5a |
op_doi |
https://doi.org/10.1029/2021GC010033 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
22 |
container_issue |
12 |
_version_ |
1784263888841211904 |