Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool
Abstract Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolit...
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Oxford University Press (OUP)
2019
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Online Access: | http://dx.doi.org/10.1093/nsr/nwz183 http://academic.oup.com/nsr/advance-article-pdf/doi/10.1093/nsr/nwz183/33097588/nwz183.pdf http://academic.oup.com/nsr/article-pdf/7/5/913/38920090/nwz183.pdf |
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croxfordunivpr:10.1093/nsr/nwz183 2024-10-06T13:52:52+00:00 Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool Lin, Honglei He, Zhiping Yang, Wei Lin, Yangting Xu, Rui Zhang, Chi Zhu, Meng-Hua Chang, Rui Zhang, Jinhai Li, Chunlai Lin, Hongyu Liu, Yang Gou, Sheng Wei, Yong Hu, Sen Xue, Changbin Yang, Jianfeng Zhong, Jie Fu, Xiaohui Wan, Weixing Zou, Yongliao Key Research Program of Frontier Sciences Chinese Academy of Sciences National Natural Science Foundation of China Beijing Municipal Science and Technology Commission 2019 http://dx.doi.org/10.1093/nsr/nwz183 http://academic.oup.com/nsr/advance-article-pdf/doi/10.1093/nsr/nwz183/33097588/nwz183.pdf http://academic.oup.com/nsr/article-pdf/7/5/913/38920090/nwz183.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ National Science Review volume 7, issue 5, page 913-920 ISSN 2095-5138 2053-714X journal-article 2019 croxfordunivpr https://doi.org/10.1093/nsr/nwz183 2024-09-10T04:09:20Z Abstract Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith's composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43]. Article in Journal/Newspaper South pole Oxford University Press South Pole Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) The Landing ENVELOPE(-45.689,-45.689,-60.733,-60.733) National Science Review 7 5 913 920 |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith's composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43]. |
author2 |
Key Research Program of Frontier Sciences Chinese Academy of Sciences National Natural Science Foundation of China Beijing Municipal Science and Technology Commission |
format |
Article in Journal/Newspaper |
author |
Lin, Honglei He, Zhiping Yang, Wei Lin, Yangting Xu, Rui Zhang, Chi Zhu, Meng-Hua Chang, Rui Zhang, Jinhai Li, Chunlai Lin, Hongyu Liu, Yang Gou, Sheng Wei, Yong Hu, Sen Xue, Changbin Yang, Jianfeng Zhong, Jie Fu, Xiaohui Wan, Weixing Zou, Yongliao |
spellingShingle |
Lin, Honglei He, Zhiping Yang, Wei Lin, Yangting Xu, Rui Zhang, Chi Zhu, Meng-Hua Chang, Rui Zhang, Jinhai Li, Chunlai Lin, Hongyu Liu, Yang Gou, Sheng Wei, Yong Hu, Sen Xue, Changbin Yang, Jianfeng Zhong, Jie Fu, Xiaohui Wan, Weixing Zou, Yongliao Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
author_facet |
Lin, Honglei He, Zhiping Yang, Wei Lin, Yangting Xu, Rui Zhang, Chi Zhu, Meng-Hua Chang, Rui Zhang, Jinhai Li, Chunlai Lin, Hongyu Liu, Yang Gou, Sheng Wei, Yong Hu, Sen Xue, Changbin Yang, Jianfeng Zhong, Jie Fu, Xiaohui Wan, Weixing Zou, Yongliao |
author_sort |
Lin, Honglei |
title |
Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
title_short |
Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
title_full |
Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
title_fullStr |
Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
title_full_unstemmed |
Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool |
title_sort |
olivine-norite rock detected by the lunar rover yutu-2 likely crystallized from the spa-impact melt pool |
publisher |
Oxford University Press (OUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1093/nsr/nwz183 http://academic.oup.com/nsr/advance-article-pdf/doi/10.1093/nsr/nwz183/33097588/nwz183.pdf http://academic.oup.com/nsr/article-pdf/7/5/913/38920090/nwz183.pdf |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
geographic |
South Pole Aitken The Landing |
geographic_facet |
South Pole Aitken The Landing |
genre |
South pole |
genre_facet |
South pole |
op_source |
National Science Review volume 7, issue 5, page 913-920 ISSN 2095-5138 2053-714X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/nsr/nwz183 |
container_title |
National Science Review |
container_volume |
7 |
container_issue |
5 |
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913 |
op_container_end_page |
920 |
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1812181469970300928 |