Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ?
International audience In this short note, we report new age determinations from four samples of the Middle-Paleozoic Viluy Traps in Siberia, east of the more famous Permo-Triassic Siberian Traps. These samples, which were collected from three drill cores, have been analyzed in parallel and independ...
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ftccsdartic:oai:HAL:hal-00545487v1 2023-05-15T18:51:00+02:00 Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? Courtillot, V. Kravchinsky, V.A. Quidelleur, X. Renne, P.R Gladkochub, D.P. Institut de Physique du Globe de Paris (IPGP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS) Sciences de la Terre, de l'Environnement et des Planètes (STEP) Université Paris Diderot - Paris 7 (UPD7) Department of Physics Edmonton University of Alberta Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Science UC Berkeley (EPS) University of California Berkeley University of California-University of California Berkeley Geochronology Center (BGC) Melnikov Permafrost Institut Russian Academy of Sciences Moscow (RAS) 2010 https://hal.archives-ouvertes.fr/hal-00545487 en eng HAL CCSD Elsevier hal-00545487 https://hal.archives-ouvertes.fr/hal-00545487 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.archives-ouvertes.fr/hal-00545487 Earth and Planetary Science Letters, Elsevier, 2010, 300, pp.:239-245 (IF 4.062) [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2010 ftccsdartic 2021-11-21T04:34:34Z International audience In this short note, we report new age determinations from four samples of the Middle-Paleozoic Viluy Traps in Siberia, east of the more famous Permo-Triassic Siberian Traps. These samples, which were collected from three drill cores, have been analyzed in parallel and independently in the Orsay (France) and Berkeley Geochronology Center (BGC; USA) geochronology laboratories, using respectively the Cassignol-Gillot K-Ar and the Ar-40/Ar-39 techniques. Dating these samples as a concerted effort in two independent laboratories working jointly on their interpretation is a rather rare yet very valuable exercise. With the K-Ar technique, ages ranging from 338 to 367 Ma with uncertainties on the order of 5 Ma were obtained. With the Ar-40/Ar-39 technique, integrated ages range from 344 to 367 Ma, with uncertainties on the order of 1 Ma, and two samples yielded plateaus, i.e. the best determined ages, at 360.3 +/- 0.9 and 370.0 +/- 0.7 Ma. Three out of four ages yielded by the two separate methods are in agreement within uncertainties. One sample yields incompatible ages and could be from a later, altered dyke event. The Ar-40/Ar-39 plateau age of 370.0 0.7 Ma (conventional calibration) or 373.4 +/- 0.7 Ma (recalculated per Renne et al., 2010), the most reliable age obtained in this study, is compatible with recent determinations of the Late Devonian extinction events at the end-Frasnian (similar to 376 +/- 3 Ma). These results underscore a need for further work, in progress. (C) 2010 Elsevier B.V. All rights reserved. Article in Journal/Newspaper renne Siberia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Renne ENVELOPE(9.698,9.698,63.505,63.505) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Courtillot, V. Kravchinsky, V.A. Quidelleur, X. Renne, P.R Gladkochub, D.P. Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience In this short note, we report new age determinations from four samples of the Middle-Paleozoic Viluy Traps in Siberia, east of the more famous Permo-Triassic Siberian Traps. These samples, which were collected from three drill cores, have been analyzed in parallel and independently in the Orsay (France) and Berkeley Geochronology Center (BGC; USA) geochronology laboratories, using respectively the Cassignol-Gillot K-Ar and the Ar-40/Ar-39 techniques. Dating these samples as a concerted effort in two independent laboratories working jointly on their interpretation is a rather rare yet very valuable exercise. With the K-Ar technique, ages ranging from 338 to 367 Ma with uncertainties on the order of 5 Ma were obtained. With the Ar-40/Ar-39 technique, integrated ages range from 344 to 367 Ma, with uncertainties on the order of 1 Ma, and two samples yielded plateaus, i.e. the best determined ages, at 360.3 +/- 0.9 and 370.0 +/- 0.7 Ma. Three out of four ages yielded by the two separate methods are in agreement within uncertainties. One sample yields incompatible ages and could be from a later, altered dyke event. The Ar-40/Ar-39 plateau age of 370.0 0.7 Ma (conventional calibration) or 373.4 +/- 0.7 Ma (recalculated per Renne et al., 2010), the most reliable age obtained in this study, is compatible with recent determinations of the Late Devonian extinction events at the end-Frasnian (similar to 376 +/- 3 Ma). These results underscore a need for further work, in progress. (C) 2010 Elsevier B.V. All rights reserved. |
author2 |
Institut de Physique du Globe de Paris (IPGP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-IPG PARIS-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS) Sciences de la Terre, de l'Environnement et des Planètes (STEP) Université Paris Diderot - Paris 7 (UPD7) Department of Physics Edmonton University of Alberta Interactions et dynamique des environnements de surface (IDES) Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Science UC Berkeley (EPS) University of California Berkeley University of California-University of California Berkeley Geochronology Center (BGC) Melnikov Permafrost Institut Russian Academy of Sciences Moscow (RAS) |
format |
Article in Journal/Newspaper |
author |
Courtillot, V. Kravchinsky, V.A. Quidelleur, X. Renne, P.R Gladkochub, D.P. |
author_facet |
Courtillot, V. Kravchinsky, V.A. Quidelleur, X. Renne, P.R Gladkochub, D.P. |
author_sort |
Courtillot, V. |
title |
Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
title_short |
Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
title_full |
Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
title_fullStr |
Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
title_full_unstemmed |
Preliminary dating of the Viluy traps (Eastern Siberia) : eruption at the time of Late Denovian extinction events ? |
title_sort |
preliminary dating of the viluy traps (eastern siberia) : eruption at the time of late denovian extinction events ? |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.archives-ouvertes.fr/hal-00545487 |
long_lat |
ENVELOPE(9.698,9.698,63.505,63.505) |
geographic |
Renne |
geographic_facet |
Renne |
genre |
renne Siberia |
genre_facet |
renne Siberia |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.archives-ouvertes.fr/hal-00545487 Earth and Planetary Science Letters, Elsevier, 2010, 300, pp.:239-245 (IF 4.062) |
op_relation |
hal-00545487 https://hal.archives-ouvertes.fr/hal-00545487 |
_version_ |
1766244779847319552 |