The Yamato-793605 martian meteorite consortium
We describe the consortium that has been organized to coordinate study of the Yamato-793605 shergottitic peridotite, a 16-g meteorite of presumed martian origin. Y-793605 is similar to two other Antarctic martian meteorites, ALH-77005 and LEW88516. One of the most important goals of the consortium i...
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National Institute of Polar Research
1997
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ftnipr:oai:nipr.repo.nii.ac.jp:00005885 2023-05-15T13:46:39+02:00 The Yamato-793605 martian meteorite consortium Hideyasu Kojima Masamichi Miyamoto Paul H. Warren 1997-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5885 http://id.nii.ac.jp/1291/00005885/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5885&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research Mineralogical Institute, Graduate School of Science, University of Tokyo Institute of Geophysics and Planetary Physics, University of California https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5885 http://id.nii.ac.jp/1291/00005885/ AA11182426 Antarctic meteorite research, 10, 3-12(1997-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5885&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1997 ftnipr 2023-02-25T20:13:31Z We describe the consortium that has been organized to coordinate study of the Yamato-793605 shergottitic peridotite, a 16-g meteorite of presumed martian origin. Y-793605 is similar to two other Antarctic martian meteorites, ALH-77005 and LEW88516. One of the most important goals of the consortium is to determine how the cosmic-ray exposure history of Y-793605 compares with those of ALH-77005 and LEW88516. An aphanitic-glassy shock melted lithology that constitutes, as scattered veins and globby enclaves, roughly 30 vol% of the rock, has also been targeted for particularly intense scrutiny. Consortium results reported in the papers that follow confirm strong similarities between Y-793605 and ALH-77005 and LEW88516,in terms of mineralogy and petrology, trace elements, and cosmic-ray exposure. The mineralogical, petrological, and trace-element similarities are so strong, they suggest that Y-793605,ALH-77005 and LEW88516 formed as cumulates (i.e., mainly large poikilitic pyroxenes enclosing cumulus olivines and chromites) from a single parent magma. The igneous crystallization age of Y-793605 has not yet been precisely determined. However, some important consortium investigations are still underway. Report Antarc* Antarctic National Institute of Polar Research Repository, Japan Antarctic Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
We describe the consortium that has been organized to coordinate study of the Yamato-793605 shergottitic peridotite, a 16-g meteorite of presumed martian origin. Y-793605 is similar to two other Antarctic martian meteorites, ALH-77005 and LEW88516. One of the most important goals of the consortium is to determine how the cosmic-ray exposure history of Y-793605 compares with those of ALH-77005 and LEW88516. An aphanitic-glassy shock melted lithology that constitutes, as scattered veins and globby enclaves, roughly 30 vol% of the rock, has also been targeted for particularly intense scrutiny. Consortium results reported in the papers that follow confirm strong similarities between Y-793605 and ALH-77005 and LEW88516,in terms of mineralogy and petrology, trace elements, and cosmic-ray exposure. The mineralogical, petrological, and trace-element similarities are so strong, they suggest that Y-793605,ALH-77005 and LEW88516 formed as cumulates (i.e., mainly large poikilitic pyroxenes enclosing cumulus olivines and chromites) from a single parent magma. The igneous crystallization age of Y-793605 has not yet been precisely determined. However, some important consortium investigations are still underway. |
format |
Report |
author |
Hideyasu Kojima Masamichi Miyamoto Paul H. Warren |
spellingShingle |
Hideyasu Kojima Masamichi Miyamoto Paul H. Warren The Yamato-793605 martian meteorite consortium |
author_facet |
Hideyasu Kojima Masamichi Miyamoto Paul H. Warren |
author_sort |
Hideyasu Kojima |
title |
The Yamato-793605 martian meteorite consortium |
title_short |
The Yamato-793605 martian meteorite consortium |
title_full |
The Yamato-793605 martian meteorite consortium |
title_fullStr |
The Yamato-793605 martian meteorite consortium |
title_full_unstemmed |
The Yamato-793605 martian meteorite consortium |
title_sort |
yamato-793605 martian meteorite consortium |
publisher |
National Institute of Polar Research |
publishDate |
1997 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5885 http://id.nii.ac.jp/1291/00005885/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5885&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(35.583,35.583,-71.417,-71.417) |
geographic |
Antarctic Yamato |
geographic_facet |
Antarctic Yamato |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5885 http://id.nii.ac.jp/1291/00005885/ AA11182426 Antarctic meteorite research, 10, 3-12(1997-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5885&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766244985702711296 |