Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite
Analyses of Sm-Nd systematics and REE concentrations were carried out for the whole rock and mineral separates from the ALH-765 meteorite. A Sm-Nd age of 4.52±0.09 (2σ) b. y. and an initial ^<143>(Nd)/^<144>(Nd) ratio of 0.50675±0.00011 (2σ) have been obtained. The previously reported Ce...
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Department of Earth Sciences, Faculty of Science, Kobe University
1983
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ftnipr:oai:nipr.repo.nii.ac.jp:00001570 2023-05-15T17:10:58+02:00 Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite Noboru Nakamura Mitsunobu Tatsumoto Denis Coffrant 1983-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1570 http://id.nii.ac.jp/1291/00001570/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1570&item_no=1&attribute_id=18&file_no=1 en eng Department of Earth Sciences, Faculty of Science, Kobe University U.S. Geological Survey https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1570 http://id.nii.ac.jp/1291/00001570/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 30, 323-331(1983-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1570&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1983 ftnipr 2022-11-12T19:42:23Z Analyses of Sm-Nd systematics and REE concentrations were carried out for the whole rock and mineral separates from the ALH-765 meteorite. A Sm-Nd age of 4.52±0.09 (2σ) b. y. and an initial ^<143>(Nd)/^<144>(Nd) ratio of 0.50675±0.00011 (2σ) have been obtained. The previously reported Ce irregularities have been re-examined in this work. The large Ce anomalies and some minor Sm-Nd system disturbances observed for the meteorite may be interpreted as results of terrestrial weathering effects. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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English |
description |
Analyses of Sm-Nd systematics and REE concentrations were carried out for the whole rock and mineral separates from the ALH-765 meteorite. A Sm-Nd age of 4.52±0.09 (2σ) b. y. and an initial ^<143>(Nd)/^<144>(Nd) ratio of 0.50675±0.00011 (2σ) have been obtained. The previously reported Ce irregularities have been re-examined in this work. The large Ce anomalies and some minor Sm-Nd system disturbances observed for the meteorite may be interpreted as results of terrestrial weathering effects. |
format |
Report |
author |
Noboru Nakamura Mitsunobu Tatsumoto Denis Coffrant |
spellingShingle |
Noboru Nakamura Mitsunobu Tatsumoto Denis Coffrant Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
author_facet |
Noboru Nakamura Mitsunobu Tatsumoto Denis Coffrant |
author_sort |
Noboru Nakamura |
title |
Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
title_short |
Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
title_full |
Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
title_fullStr |
Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
title_full_unstemmed |
Sm-Nd isotopic systematics and REE abundance studies of the ALH-765 eucrite |
title_sort |
sm-nd isotopic systematics and ree abundance studies of the alh-765 eucrite |
publisher |
Department of Earth Sciences, Faculty of Science, Kobe University |
publishDate |
1983 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1570 http://id.nii.ac.jp/1291/00001570/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1570&item_no=1&attribute_id=18&file_no=1 |
genre |
Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1570 http://id.nii.ac.jp/1291/00001570/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 30, 323-331(1983-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1570&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067760770580480 |