Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway
Sverrefjellet is a Pleistocene-age basaltic volcanic construct on north-western Spitsbergen Island (Svalbard Archipelago, Norway). Published ages for the Sverrefjellet eruption range between 6000 years and ca. 1 million years before present. The age of the eruption is dated here as 1.05±0.07 (1s) My...
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ftjpolarres:oai:journals.openacademia.net:article/2605 2024-06-23T07:56:19+00:00 Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway Treiman, Allan H. 2012-03-02 application/pdf text/html application/epub+zip text/xml application/excel https://polarresearch.net/index.php/polar/article/view/2605 https://doi.org/10.3402/polar.v31i0.17320 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2605/pdf_1 https://polarresearch.net/index.php/polar/article/view/2605/html https://polarresearch.net/index.php/polar/article/view/2605/5931 https://polarresearch.net/index.php/polar/article/view/2605/xml https://polarresearch.net/index.php/polar/article/view/2605/5933 https://polarresearch.net/index.php/polar/article/view/2605 doi:10.3402/polar.v31i0.17320 Polar Research; Vol 31 (2012) 1751-8369 Svalbard Spitsbergen basalt Knipovich Ridge Ar-Ar info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftjpolarres https://doi.org/10.3402/polar.v31i0.17320 2024-06-13T23:33:00Z Sverrefjellet is a Pleistocene-age basaltic volcanic construct on north-western Spitsbergen Island (Svalbard Archipelago, Norway). Published ages for the Sverrefjellet eruption range between 6000 years and ca. 1 million years before present. The age of the eruption is dated here as 1.05±0.07 (1s) My, consistent with Ar-Ar isochron and plateau ages of several analysed samples. Radiogenic Ar represents a small proportion of the released Ar, < 15% in nearly all samples. Non-radiogenic Ar components include air, excess 40Ar (seen as inverse isochron intercept values > 40Ar/36Ar=295.5), low-temperature alterations (Ar release at low temperature, with high Cl/K), carbonates and zeolites (Ar release at intermediate temperature) and xenolithic material (Ar release at high temperature, high Ca/K). The effects of the largely non-radiogenic argon sources is also seen in the total gas Ar-Ar “ages,” which range from 1.3 – 10.3 My, significantly larger than the inferred eruption age. It is likely that total gas Ar-Ar “ages” and whole-rock K-Ar “ages” of similar basalts also exceed their true eruption ages.Keywords: Svalbard; Spitsbergen; basalt; Knipovich; Ridge; Ar-Ar(Published: 2 March 2012)Citation: Polar Research 2012, 31, 17320, DOI:10.3402/polar.v31i0.17320To access the supplementary material to this article please see Supplementary files in the column to the right (under Article Tools) Article in Journal/Newspaper Polar Research Svalbard Spitsbergen Polar Research Knipovich Ridge ENVELOPE(7.074,7.074,75.712,75.712) Norway Svalbard Svalbard Archipelago Sverrefjellet ENVELOPE(13.300,13.300,79.433,79.433) Polar Research 31 1 17320 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Svalbard Spitsbergen basalt Knipovich Ridge Ar-Ar |
spellingShingle |
Svalbard Spitsbergen basalt Knipovich Ridge Ar-Ar Treiman, Allan H. Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
topic_facet |
Svalbard Spitsbergen basalt Knipovich Ridge Ar-Ar |
description |
Sverrefjellet is a Pleistocene-age basaltic volcanic construct on north-western Spitsbergen Island (Svalbard Archipelago, Norway). Published ages for the Sverrefjellet eruption range between 6000 years and ca. 1 million years before present. The age of the eruption is dated here as 1.05±0.07 (1s) My, consistent with Ar-Ar isochron and plateau ages of several analysed samples. Radiogenic Ar represents a small proportion of the released Ar, < 15% in nearly all samples. Non-radiogenic Ar components include air, excess 40Ar (seen as inverse isochron intercept values > 40Ar/36Ar=295.5), low-temperature alterations (Ar release at low temperature, with high Cl/K), carbonates and zeolites (Ar release at intermediate temperature) and xenolithic material (Ar release at high temperature, high Ca/K). The effects of the largely non-radiogenic argon sources is also seen in the total gas Ar-Ar “ages,” which range from 1.3 – 10.3 My, significantly larger than the inferred eruption age. It is likely that total gas Ar-Ar “ages” and whole-rock K-Ar “ages” of similar basalts also exceed their true eruption ages.Keywords: Svalbard; Spitsbergen; basalt; Knipovich; Ridge; Ar-Ar(Published: 2 March 2012)Citation: Polar Research 2012, 31, 17320, DOI:10.3402/polar.v31i0.17320To access the supplementary material to this article please see Supplementary files in the column to the right (under Article Tools) |
format |
Article in Journal/Newspaper |
author |
Treiman, Allan H. |
author_facet |
Treiman, Allan H. |
author_sort |
Treiman, Allan H. |
title |
Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
title_short |
Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
title_full |
Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
title_fullStr |
Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
title_full_unstemmed |
Eruption age of the Sverrefjellet volcano, Spitsbergen Island, Norway |
title_sort |
eruption age of the sverrefjellet volcano, spitsbergen island, norway |
publisher |
Norwegian Polar Institute |
publishDate |
2012 |
url |
https://polarresearch.net/index.php/polar/article/view/2605 https://doi.org/10.3402/polar.v31i0.17320 |
long_lat |
ENVELOPE(7.074,7.074,75.712,75.712) ENVELOPE(13.300,13.300,79.433,79.433) |
geographic |
Knipovich Ridge Norway Svalbard Svalbard Archipelago Sverrefjellet |
geographic_facet |
Knipovich Ridge Norway Svalbard Svalbard Archipelago Sverrefjellet |
genre |
Polar Research Svalbard Spitsbergen |
genre_facet |
Polar Research Svalbard Spitsbergen |
op_source |
Polar Research; Vol 31 (2012) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2605/pdf_1 https://polarresearch.net/index.php/polar/article/view/2605/html https://polarresearch.net/index.php/polar/article/view/2605/5931 https://polarresearch.net/index.php/polar/article/view/2605/xml https://polarresearch.net/index.php/polar/article/view/2605/5933 https://polarresearch.net/index.php/polar/article/view/2605 doi:10.3402/polar.v31i0.17320 |
op_doi |
https://doi.org/10.3402/polar.v31i0.17320 |
container_title |
Polar Research |
container_volume |
31 |
container_issue |
1 |
container_start_page |
17320 |
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1802649344275382272 |