Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica
Abstract Petrography and mineral chemistry of 24 ordinary chondrites from the Grove Mountains, Antarctica, have been studied in order to identify their chemical‐petrographic types. These samples were selected from a total of 4448 Grove Mountains (GRV) meteorites collected during the 19th Chinese Ant...
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crwiley:10.1111/j.1755-6724.2004.tb00761.x 2024-06-23T07:47:31+00:00 Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica Ren, LU Bingkui, MIAO Guiqing, WANG Deqiu, DAI Yangting, LIN Ziyuan, OUYANG Chunlai, LI 2004 http://dx.doi.org/10.1111/j.1755-6724.2004.tb00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1755-6724.2004.tb00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-6724.2004.tb00761.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Geologica Sinica - English Edition volume 78, issue 5, page 1052-1059 ISSN 1000-9515 1755-6724 journal-article 2004 crwiley https://doi.org/10.1111/j.1755-6724.2004.tb00761.x 2024-06-13T04:25:17Z Abstract Petrography and mineral chemistry of 24 ordinary chondrites from the Grove Mountains, Antarctica, have been studied in order to identify their chemical‐petrographic types. These samples were selected from a total of 4448 Grove Mountains (GRV) meteorites collected during the 19th Chinese Antarctic Research Expedition so as to make an estimation of the large GRV meteorite collection. The chemical‐petrographic types of these meteorites are presented below: 1 H3, 2 H4, 4 H5, 2 H6, 1 L4, 7 L5, 5 L6, 1 LL4 and 1 LL6. The new data weaken the previous report that unequilibrated ordinary chondrites are unusually abundant in the Grove Mountains region. However, this work confirms significant differences in distribution patterns of chemical‐petrographic types between the Grove Mountains and other regions in Antarctica. Many of these meteorites show significant terrestrial weathering, probably due to a high abundance ratio of meteorites found in moraines to those on blue ice. Nine meteorites experienced severe shock metamorphism, as evidenced by undulose extinction and intense fracturing of silicates and presence of shock‐induced melt veins and pockets. These heavily shocked meteorites provided us with natural samples for the study of high‐pressure polymorphs of minerals. Article in Journal/Newspaper Antarc* Antarctic Antarctica Wiley Online Library Antarctic Grove Mountains ENVELOPE(75.000,75.000,-72.750,-72.750) Acta Geologica Sinica - English Edition 78 5 1052 1059 |
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Wiley Online Library |
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English |
description |
Abstract Petrography and mineral chemistry of 24 ordinary chondrites from the Grove Mountains, Antarctica, have been studied in order to identify their chemical‐petrographic types. These samples were selected from a total of 4448 Grove Mountains (GRV) meteorites collected during the 19th Chinese Antarctic Research Expedition so as to make an estimation of the large GRV meteorite collection. The chemical‐petrographic types of these meteorites are presented below: 1 H3, 2 H4, 4 H5, 2 H6, 1 L4, 7 L5, 5 L6, 1 LL4 and 1 LL6. The new data weaken the previous report that unequilibrated ordinary chondrites are unusually abundant in the Grove Mountains region. However, this work confirms significant differences in distribution patterns of chemical‐petrographic types between the Grove Mountains and other regions in Antarctica. Many of these meteorites show significant terrestrial weathering, probably due to a high abundance ratio of meteorites found in moraines to those on blue ice. Nine meteorites experienced severe shock metamorphism, as evidenced by undulose extinction and intense fracturing of silicates and presence of shock‐induced melt veins and pockets. These heavily shocked meteorites provided us with natural samples for the study of high‐pressure polymorphs of minerals. |
format |
Article in Journal/Newspaper |
author |
Ren, LU Bingkui, MIAO Guiqing, WANG Deqiu, DAI Yangting, LIN Ziyuan, OUYANG Chunlai, LI |
spellingShingle |
Ren, LU Bingkui, MIAO Guiqing, WANG Deqiu, DAI Yangting, LIN Ziyuan, OUYANG Chunlai, LI Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
author_facet |
Ren, LU Bingkui, MIAO Guiqing, WANG Deqiu, DAI Yangting, LIN Ziyuan, OUYANG Chunlai, LI |
author_sort |
Ren, LU |
title |
Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
title_short |
Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
title_full |
Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
title_fullStr |
Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
title_full_unstemmed |
Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica |
title_sort |
classification of 24 new ordinary chondrites from the grove mountains, antarctica |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1111/j.1755-6724.2004.tb00761.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1755-6724.2004.tb00761.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-6724.2004.tb00761.x |
long_lat |
ENVELOPE(75.000,75.000,-72.750,-72.750) |
geographic |
Antarctic Grove Mountains |
geographic_facet |
Antarctic Grove Mountains |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Acta Geologica Sinica - English Edition volume 78, issue 5, page 1052-1059 ISSN 1000-9515 1755-6724 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1755-6724.2004.tb00761.x |
container_title |
Acta Geologica Sinica - English Edition |
container_volume |
78 |
container_issue |
5 |
container_start_page |
1052 |
op_container_end_page |
1059 |
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1802651639145824256 |