Volatile chalcophile, siderophile and lithophile trace elements in lunar meteorite Yamato-82192
Neutron activation analyses of Ag, Au, Bi, Cd, Co, Cs, Ga, In, Rb, Sb, Se, Te, Tl, U and Zn in whole-rock, melted and unmelted regolith samples of Yamato-82192 reveals a lunar highlands origin plus meteorite admixture, 2.4±0.8% Cl-equivalent for micrometeorites and ancient impact component. A small...
Main Authors: | , , |
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Format: | Report |
Language: | English |
Published: |
Department of Chemistry, Purdue University/Department of Chemistry, Purdue University/Department of Chemistry, Purdue University
1987
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Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2122 http://id.nii.ac.jp/1291/00002122/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2122&item_no=1&attribute_id=18&file_no=1 |
Summary: | Neutron activation analyses of Ag, Au, Bi, Cd, Co, Cs, Ga, In, Rb, Sb, Se, Te, Tl, U and Zn in whole-rock, melted and unmelted regolith samples of Yamato-82192 reveals a lunar highlands origin plus meteorite admixture, 2.4±0.8% Cl-equivalent for micrometeorites and ancient impact component. A small but real amount of mobile element loss occurred during the shock-melting episode that formed Y-82192. Differences in trace element and other trends indicate pronounced differences in the thermal histories of the parent regoliths of Allan Hills A81005 and Y-791197 and -82192 so that each must have been produced by a separate impact on the Moon. |
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