Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History
Petrological studies based mainly on the microprobe analyses have been made on nine ordinary chondrites, Yamato-74115 (H5), -74155 (H4), ALHA77148 (H6), Yamato-74007 (L6), -74190 (L6), -74354 (L6), -74362 (L6), -74445 (L6), and -74646 (LL6) and preliminary studies on the "unequilibrated" c...
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Geological Institute, Faculty of Science, University of Tokyo
1980
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ftnipr:oai:nipr.repo.nii.ac.jp:00001088 2023-05-15T17:10:58+02:00 Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History Hiroko Nagahara 1980-12 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1088 http://id.nii.ac.jp/1291/00001088/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1088&item_no=1&attribute_id=18&file_no=1 en eng Geological Institute, Faculty of Science, University of Tokyo https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1088 http://id.nii.ac.jp/1291/00001088/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 17, 32-49(1980-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1088&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1980 ftnipr 2022-11-12T19:41:54Z Petrological studies based mainly on the microprobe analyses have been made on nine ordinary chondrites, Yamato-74115 (H5), -74155 (H4), ALHA77148 (H6), Yamato-74007 (L6), -74190 (L6), -74354 (L6), -74362 (L6), -74445 (L6), and -74646 (LL6) and preliminary studies on the "unequilibrated" chondrites, ALHA77015 (L) and 77033 (LL). Detailed microprobe analyses of minerals of chondrites indicate that some chondrules became rich in FeO from the surface after their formation and before accretion to form a parental body or bodies. Based on the textural and petrochemical data, thermal history of "equilibrated" chondrites has been inferred. It is suggested that highly recrystallized chondrites were derived from the relatively inner part of the parental body and weakly recrystallized ones from near the surface. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan 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 |
op_collection_id |
ftnipr |
language |
English |
description |
Petrological studies based mainly on the microprobe analyses have been made on nine ordinary chondrites, Yamato-74115 (H5), -74155 (H4), ALHA77148 (H6), Yamato-74007 (L6), -74190 (L6), -74354 (L6), -74362 (L6), -74445 (L6), and -74646 (LL6) and preliminary studies on the "unequilibrated" chondrites, ALHA77015 (L) and 77033 (LL). Detailed microprobe analyses of minerals of chondrites indicate that some chondrules became rich in FeO from the surface after their formation and before accretion to form a parental body or bodies. Based on the textural and petrochemical data, thermal history of "equilibrated" chondrites has been inferred. It is suggested that highly recrystallized chondrites were derived from the relatively inner part of the parental body and weakly recrystallized ones from near the surface. |
format |
Report |
author |
Hiroko Nagahara |
spellingShingle |
Hiroko Nagahara Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
author_facet |
Hiroko Nagahara |
author_sort |
Hiroko Nagahara |
title |
Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
title_short |
Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
title_full |
Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
title_fullStr |
Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
title_full_unstemmed |
Petrology of "Equilibrated" Chondrites. 2. Metamorphism and Thermal History |
title_sort |
petrology of "equilibrated" chondrites. 2. metamorphism and thermal history |
publisher |
Geological Institute, Faculty of Science, University of Tokyo |
publishDate |
1980 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1088 http://id.nii.ac.jp/1291/00001088/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1088&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(35.583,35.583,-71.417,-71.417) |
geographic |
Yamato |
geographic_facet |
Yamato |
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=1088 http://id.nii.ac.jp/1291/00001088/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 17, 32-49(1980-12) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1088&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067729477926912 |