GRV 051523: A new eucrite
Grove Mountains (GRV) 051523 is a newly identified eucrite, consisting mainly of coarse-grained pyroxene (62.9 vol %) and plagioclase (34.2 vol %), with less abundant opaque minerals (2.7 vol %), minor silica and tiny FeO-rich olivine (Fa75). Coarse-grained pyroxenes show exsolution of augite lamell...
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ftarcticportal:oai:generic.eprints.org:2384 2023-10-09T21:44:09+02:00 GRV 051523: A new eucrite Tao, Liu Yangting, Lin Sen, Hu Lu, Feng 2009-12 application/pdf http://library.arcticportal.org/2384/ http://library.arcticportal.org/2384/1/A0090208.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2384/1/A0090208.pdf Tao, Liu and Yangting, Lin and Sen, Hu and Lu, Feng (2009) GRV 051523: A new eucrite. Advances in Polar Science, 20 (2). pp. 200-208. Space Article PeerReviewed 2009 ftarcticportal 2023-09-13T22:54:14Z Grove Mountains (GRV) 051523 is a newly identified eucrite, consisting mainly of coarse-grained pyroxene (62.9 vol %) and plagioclase (34.2 vol %), with less abundant opaque minerals (2.7 vol %), minor silica and tiny FeO-rich olivine (Fa75). Coarse-grained pyroxenes show exsolution of augite lamellae in pigeonite or vice versa. Width of most exsolution lamellae in pyroxenes is 1-3 μm. Opaque minerals are mainly chromite, ilmenite and sulfides. The meteorite was heavily shocked, as indica ted by breccias and melt veins. Coarse-grained pyroxenes commonly contain abundant tiny or needle-like chromite inclusions with orientation, probably due to heavy shock events. Pyroxenes in various petrographic occurrences exhibit highly homogeneous compositions, indicating that GRV 051523 experienced intense thermal metamorphism in the parent asteroid 4 Vesta. GRV 051523 is classified as Type 5-6. This new eucrite will have additional constraints on chemical composition, magmatic differentiation, multi-stage shock and thermal history of Vesta. Article in Journal/Newspaper Advances in Polar Science Polar Science Polar Science Arctic Portal Library Grove Mountains ENVELOPE(75.000,75.000,-72.750,-72.750) |
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Open Polar |
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Arctic Portal Library |
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ftarcticportal |
language |
English |
topic |
Space |
spellingShingle |
Space Tao, Liu Yangting, Lin Sen, Hu Lu, Feng GRV 051523: A new eucrite |
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Space |
description |
Grove Mountains (GRV) 051523 is a newly identified eucrite, consisting mainly of coarse-grained pyroxene (62.9 vol %) and plagioclase (34.2 vol %), with less abundant opaque minerals (2.7 vol %), minor silica and tiny FeO-rich olivine (Fa75). Coarse-grained pyroxenes show exsolution of augite lamellae in pigeonite or vice versa. Width of most exsolution lamellae in pyroxenes is 1-3 μm. Opaque minerals are mainly chromite, ilmenite and sulfides. The meteorite was heavily shocked, as indica ted by breccias and melt veins. Coarse-grained pyroxenes commonly contain abundant tiny or needle-like chromite inclusions with orientation, probably due to heavy shock events. Pyroxenes in various petrographic occurrences exhibit highly homogeneous compositions, indicating that GRV 051523 experienced intense thermal metamorphism in the parent asteroid 4 Vesta. GRV 051523 is classified as Type 5-6. This new eucrite will have additional constraints on chemical composition, magmatic differentiation, multi-stage shock and thermal history of Vesta. |
format |
Article in Journal/Newspaper |
author |
Tao, Liu Yangting, Lin Sen, Hu Lu, Feng |
author_facet |
Tao, Liu Yangting, Lin Sen, Hu Lu, Feng |
author_sort |
Tao, Liu |
title |
GRV 051523: A new eucrite |
title_short |
GRV 051523: A new eucrite |
title_full |
GRV 051523: A new eucrite |
title_fullStr |
GRV 051523: A new eucrite |
title_full_unstemmed |
GRV 051523: A new eucrite |
title_sort |
grv 051523: a new eucrite |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2009 |
url |
http://library.arcticportal.org/2384/ http://library.arcticportal.org/2384/1/A0090208.pdf |
long_lat |
ENVELOPE(75.000,75.000,-72.750,-72.750) |
geographic |
Grove Mountains |
geographic_facet |
Grove Mountains |
genre |
Advances in Polar Science Polar Science Polar Science |
genre_facet |
Advances in Polar Science Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2384/1/A0090208.pdf Tao, Liu and Yangting, Lin and Sen, Hu and Lu, Feng (2009) GRV 051523: A new eucrite. Advances in Polar Science, 20 (2). pp. 200-208. |
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1779317715384664064 |