Petrology of Allan Hills-764 Chondrites (LL3)
P(論文) The droplet chondrules in Allan Hills-764 chondrite are grouped into three chondrule types on the base of their chemical compositions. They are sodic plagioclase (SP) chondrules, intermediate plagioclase (IP) chondrules and nepheline (N) chondrules. The SP-chondrules are the most common type a...
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ftnipr:oai:nipr.repo.nii.ac.jp:00001089 2024-09-09T19:51:59+00:00 Petrology of Allan Hills-764 Chondrites (LL3) Ikeda, Yukio 1980-12 application/pdf https://nipr.repo.nii.ac.jp/record/1089/files/KJ00000011615.pdf eng eng Memoirs of National Institute of Polar Research. Special issue 17 50 82 AA00733561 https://nipr.repo.nii.ac.jp/record/1089/files/KJ00000011615.pdf 1980 ftnipr 2024-06-17T04:00:22Z P(論文) The droplet chondrules in Allan Hills-764 chondrite are grouped into three chondrule types on the base of their chemical compositions. They are sodic plagioclase (SP) chondrules, intermediate plagioclase (IP) chondrules and nepheline (N) chondrules. The SP-chondrules are the most common type and are composed mainly of the normative olivine, pyroxenes and sodic plagioclase components. The IP-chondrules consist of the normative olivine, pyroxenes and intermediate plagioclase components. The N-chondrules are rare and are composed of the normative olivine, nepheline and sodic plagioclase components. The actual minerals occurring in these droplet chondrules are not necessarily equal to the normative mineral compositions because of their metastable crystallization in rapid cooling conditions. Their crystallization sequences of minerals occurring in each chondrule type may be strongly controlled by their cooling rates. departmental bulletin paper Other/Unknown Material 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 |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
P(論文) The droplet chondrules in Allan Hills-764 chondrite are grouped into three chondrule types on the base of their chemical compositions. They are sodic plagioclase (SP) chondrules, intermediate plagioclase (IP) chondrules and nepheline (N) chondrules. The SP-chondrules are the most common type and are composed mainly of the normative olivine, pyroxenes and sodic plagioclase components. The IP-chondrules consist of the normative olivine, pyroxenes and intermediate plagioclase components. The N-chondrules are rare and are composed of the normative olivine, nepheline and sodic plagioclase components. The actual minerals occurring in these droplet chondrules are not necessarily equal to the normative mineral compositions because of their metastable crystallization in rapid cooling conditions. Their crystallization sequences of minerals occurring in each chondrule type may be strongly controlled by their cooling rates. departmental bulletin paper |
author |
Ikeda, Yukio |
spellingShingle |
Ikeda, Yukio Petrology of Allan Hills-764 Chondrites (LL3) |
author_facet |
Ikeda, Yukio |
author_sort |
Ikeda, Yukio |
title |
Petrology of Allan Hills-764 Chondrites (LL3) |
title_short |
Petrology of Allan Hills-764 Chondrites (LL3) |
title_full |
Petrology of Allan Hills-764 Chondrites (LL3) |
title_fullStr |
Petrology of Allan Hills-764 Chondrites (LL3) |
title_full_unstemmed |
Petrology of Allan Hills-764 Chondrites (LL3) |
title_sort |
petrology of allan hills-764 chondrites (ll3) |
publishDate |
1980 |
url |
https://nipr.repo.nii.ac.jp/record/1089/files/KJ00000011615.pdf |
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 |
Memoirs of National Institute of Polar Research. Special issue 17 50 82 AA00733561 https://nipr.repo.nii.ac.jp/record/1089/files/KJ00000011615.pdf |
_version_ |
1809921343535185920 |