REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite
The rare earth elements (REE) Ba and Sr abundances in the whole rock and mineral separates of the Allan Hills-765 meteorite and in the whole rock of the Juvinas meteorite have been determined by the mass spectrometric isotope dilution method. The REE pattern of the whole rock of the Allan Hills mete...
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Department of Earth Sciences, Faculty of Science, Kobe University
1980
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ftnipr:oai:nipr.repo.nii.ac.jp:00001096 2023-05-15T17:10:58+02:00 REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite Noboru Nakamura Akimasa Masuda 1980-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1096 http://id.nii.ac.jp/1291/00001096/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1096&item_no=1&attribute_id=18&file_no=1 en eng Department of Earth Sciences, Faculty of Science, Kobe University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1096 http://id.nii.ac.jp/1291/00001096/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 17, 159-167(1980-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1096&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1980 ftnipr 2022-11-12T19:41:54Z The rare earth elements (REE) Ba and Sr abundances in the whole rock and mineral separates of the Allan Hills-765 meteorite and in the whole rock of the Juvinas meteorite have been determined by the mass spectrometric isotope dilution method. The REE pattern of the whole rock of the Allan Hills meteorite is similar to that of the Juvinas meteorite but is different in presence of a significantly large (∿+50%) Ce anomaly. The hand-picked pyroxenes black clast show different REE patterns with different extents of Ce anomalies (-40∿+240%). On the other hand, plagioclase shows rather minor (∿+10%) Ce irregularity. REE patterns for estimated melts in equilibrium with the minerals suggest that different pyroxenes have not been in equilibrium with each other and with plagioclase. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
The rare earth elements (REE) Ba and Sr abundances in the whole rock and mineral separates of the Allan Hills-765 meteorite and in the whole rock of the Juvinas meteorite have been determined by the mass spectrometric isotope dilution method. The REE pattern of the whole rock of the Allan Hills meteorite is similar to that of the Juvinas meteorite but is different in presence of a significantly large (∿+50%) Ce anomaly. The hand-picked pyroxenes black clast show different REE patterns with different extents of Ce anomalies (-40∿+240%). On the other hand, plagioclase shows rather minor (∿+10%) Ce irregularity. REE patterns for estimated melts in equilibrium with the minerals suggest that different pyroxenes have not been in equilibrium with each other and with plagioclase. |
format |
Report |
author |
Noboru Nakamura Akimasa Masuda |
spellingShingle |
Noboru Nakamura Akimasa Masuda REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
author_facet |
Noboru Nakamura Akimasa Masuda |
author_sort |
Noboru Nakamura |
title |
REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
title_short |
REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
title_full |
REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
title_fullStr |
REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
title_full_unstemmed |
REE Abundances in the Whole Rock and Mineral Separates of the Allan Hills-765 Meteorite |
title_sort |
ree abundances in the whole rock and mineral separates of the allan hills-765 meteorite |
publisher |
Department of Earth Sciences, Faculty of Science, Kobe University |
publishDate |
1980 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1096 http://id.nii.ac.jp/1291/00001096/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1096&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Allan Hills |
geographic_facet |
Allan Hills |
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=1096 http://id.nii.ac.jp/1291/00001096/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 17, 159-167(1980-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1096&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067730781306880 |