Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam
Nineteen sites with 198 oriented-core samples have been collected from the Upper Permian-Lower Triassic volcanic rocks of Vien Nam Formation at Quynh Nhai locality, Son La Province, northwestern Vietnam. The characteristic remanent magnetization components carried by magnetite and hematite were succ...
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ftvietnamacadst:oai:ojs.pkp.sfu.ca:article/15943 2023-05-15T16:19:38+02:00 Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam Chi, Cung Thuong Geissman, John W. Borgfeldt, Taylor Hoang, Nguyen 2021-03-25 application/pdf http://vjs.ac.vn/index.php/jse/article/view/15943 https://doi.org/10.15625/0866-7187/15943 eng eng Publishing House for Science and Technology http://vjs.ac.vn/index.php/jse/article/view/15943/pdf http://vjs.ac.vn/index.php/jse/article/view/15943 doi:10.15625/0866-7187/15943 Copyright (c) 2021 VIETNAM JOURNAL OF EARTH SCIENCES VIETNAM JOURNAL OF EARTH SCIENCES; Vol 43, No 2 (2021); 220-235 0866-7187 Paleomagnetism characteristic remanent magnetization virtual geomagnetic pole paleo-latitude volcanic rocks info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 2021 ftvietnamacadst https://doi.org/10.15625/0866-7187/15943 2021-05-02T17:51:11Z Nineteen sites with 198 oriented-core samples have been collected from the Upper Permian-Lower Triassic volcanic rocks of Vien Nam Formation at Quynh Nhai locality, Son La Province, northwestern Vietnam. The characteristic remanent magnetization components carried by magnetite and hematite were successfully isolated from secondary components reveal a mean paleomagnetic direction Ds = 48.3°, Is = -10.0°, a95 = 8.0°, corresponding to a virtual geomagnetic pole located at l = 35.7°N, f = 217.4°E and a paleo-latitude of study area situated at 5.1°S during the Permian time. Compared with the Late Permian-Early Triassic pole of the South China Block (SCB), the data show that crustal elements of NW Vietnam have been close to, but not unequivocally a coherent part of the SCB, since the Late Permian. Development of the parallel NW-SE striking Song Ma and Song Chay orogenic belts did not involve the closure of wide (> 500 km) ocean basins. Article in Journal/Newspaper Geomagnetic Pole Vietnam Academy of Science and Technology: Journals Online Chay ENVELOPE(140.866,140.866,72.841,72.841) VIETNAM JOURNAL OF EARTH SCIENCES 43 2 |
institution |
Open Polar |
collection |
Vietnam Academy of Science and Technology: Journals Online |
op_collection_id |
ftvietnamacadst |
language |
English |
topic |
Paleomagnetism characteristic remanent magnetization virtual geomagnetic pole paleo-latitude volcanic rocks |
spellingShingle |
Paleomagnetism characteristic remanent magnetization virtual geomagnetic pole paleo-latitude volcanic rocks Chi, Cung Thuong Geissman, John W. Borgfeldt, Taylor Hoang, Nguyen Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
topic_facet |
Paleomagnetism characteristic remanent magnetization virtual geomagnetic pole paleo-latitude volcanic rocks |
description |
Nineteen sites with 198 oriented-core samples have been collected from the Upper Permian-Lower Triassic volcanic rocks of Vien Nam Formation at Quynh Nhai locality, Son La Province, northwestern Vietnam. The characteristic remanent magnetization components carried by magnetite and hematite were successfully isolated from secondary components reveal a mean paleomagnetic direction Ds = 48.3°, Is = -10.0°, a95 = 8.0°, corresponding to a virtual geomagnetic pole located at l = 35.7°N, f = 217.4°E and a paleo-latitude of study area situated at 5.1°S during the Permian time. Compared with the Late Permian-Early Triassic pole of the South China Block (SCB), the data show that crustal elements of NW Vietnam have been close to, but not unequivocally a coherent part of the SCB, since the Late Permian. Development of the parallel NW-SE striking Song Ma and Song Chay orogenic belts did not involve the closure of wide (> 500 km) ocean basins. |
format |
Article in Journal/Newspaper |
author |
Chi, Cung Thuong Geissman, John W. Borgfeldt, Taylor Hoang, Nguyen |
author_facet |
Chi, Cung Thuong Geissman, John W. Borgfeldt, Taylor Hoang, Nguyen |
author_sort |
Chi, Cung Thuong |
title |
Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
title_short |
Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
title_full |
Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
title_fullStr |
Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
title_full_unstemmed |
Paleomagnetism of Permian-Triassic volcanic sequences from Son La province, northwest Vietnam |
title_sort |
paleomagnetism of permian-triassic volcanic sequences from son la province, northwest vietnam |
publisher |
Publishing House for Science and Technology |
publishDate |
2021 |
url |
http://vjs.ac.vn/index.php/jse/article/view/15943 https://doi.org/10.15625/0866-7187/15943 |
long_lat |
ENVELOPE(140.866,140.866,72.841,72.841) |
geographic |
Chay |
geographic_facet |
Chay |
genre |
Geomagnetic Pole |
genre_facet |
Geomagnetic Pole |
op_source |
VIETNAM JOURNAL OF EARTH SCIENCES; Vol 43, No 2 (2021); 220-235 0866-7187 |
op_relation |
http://vjs.ac.vn/index.php/jse/article/view/15943/pdf http://vjs.ac.vn/index.php/jse/article/view/15943 doi:10.15625/0866-7187/15943 |
op_rights |
Copyright (c) 2021 VIETNAM JOURNAL OF EARTH SCIENCES |
op_doi |
https://doi.org/10.15625/0866-7187/15943 |
container_title |
VIETNAM JOURNAL OF EARTH SCIENCES |
container_volume |
43 |
container_issue |
2 |
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1766006046239752192 |