Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses
Abstract The Australasian tektites are quench melt glass ejecta particles distributed over the Asian, Australian, and Antarctic regions, the source crater of which is currently elusive. New 40 Ar/ 39 Ar age data from four tektites: one each from Thailand, China, Vietnam, and Australia measured using...
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crwiley:10.1111/maps.13305 2024-04-07T07:47:31+00:00 Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses Jourdan, Fred Nomade, Sebastien Wingate, Michael T. D. Eroglu, Ela Deino, Al 2019 http://dx.doi.org/10.1111/maps.13305 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.13305 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maps.13305 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Meteoritics & Planetary Science volume 54, issue 10, page 2573-2591 ISSN 1086-9379 1945-5100 Space and Planetary Science Geophysics journal-article 2019 crwiley https://doi.org/10.1111/maps.13305 2024-03-14T00:43:10Z Abstract The Australasian tektites are quench melt glass ejecta particles distributed over the Asian, Australian, and Antarctic regions, the source crater of which is currently elusive. New 40 Ar/ 39 Ar age data from four tektites: one each from Thailand, China, Vietnam, and Australia measured using three different instruments from two different laboratories and combined with published 40 Ar/ 39 Ar data yield a weighted mean age of 788.1 ± 2.8 ka (±3.0 ka, including all sources of uncertainties) (P = 0.54). This age is five times more precise compared to previous results thanks, in part, to the multicollection capabilities of the ARGUS VI noble gas mass spectrometer, which allows an improvement of almost fourfold on a single plateau age measurement. Diffusion experiments on tektites combined with synthetic age spectra and Monte Carlo diffusion models suggest that the minimum temperature of formation of the Thai tektite is between 2350 °C and 3950 °C, hence a strict minimum value of 2350 °C. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic Meteoritics & Planetary Science 54 10 2573 2591 |
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English |
topic |
Space and Planetary Science Geophysics |
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Space and Planetary Science Geophysics Jourdan, Fred Nomade, Sebastien Wingate, Michael T. D. Eroglu, Ela Deino, Al Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
topic_facet |
Space and Planetary Science Geophysics |
description |
Abstract The Australasian tektites are quench melt glass ejecta particles distributed over the Asian, Australian, and Antarctic regions, the source crater of which is currently elusive. New 40 Ar/ 39 Ar age data from four tektites: one each from Thailand, China, Vietnam, and Australia measured using three different instruments from two different laboratories and combined with published 40 Ar/ 39 Ar data yield a weighted mean age of 788.1 ± 2.8 ka (±3.0 ka, including all sources of uncertainties) (P = 0.54). This age is five times more precise compared to previous results thanks, in part, to the multicollection capabilities of the ARGUS VI noble gas mass spectrometer, which allows an improvement of almost fourfold on a single plateau age measurement. Diffusion experiments on tektites combined with synthetic age spectra and Monte Carlo diffusion models suggest that the minimum temperature of formation of the Thai tektite is between 2350 °C and 3950 °C, hence a strict minimum value of 2350 °C. |
format |
Article in Journal/Newspaper |
author |
Jourdan, Fred Nomade, Sebastien Wingate, Michael T. D. Eroglu, Ela Deino, Al |
author_facet |
Jourdan, Fred Nomade, Sebastien Wingate, Michael T. D. Eroglu, Ela Deino, Al |
author_sort |
Jourdan, Fred |
title |
Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
title_short |
Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
title_full |
Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
title_fullStr |
Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
title_full_unstemmed |
Ultraprecise age and formation temperature of the Australasian tektites constrained by 40 Ar/ 39 Ar analyses |
title_sort |
ultraprecise age and formation temperature of the australasian tektites constrained by 40 ar/ 39 ar analyses |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/maps.13305 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.13305 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maps.13305 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Meteoritics & Planetary Science volume 54, issue 10, page 2573-2591 ISSN 1086-9379 1945-5100 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/maps.13305 |
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Meteoritics & Planetary Science |
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54 |
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10 |
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2573 |
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2591 |
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1795674643852427264 |