Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole
In 2003, three lunar meteorites were collected in close proximity to each other in the Dhofar region of Oman: Dhofar 925 (49 g), Dhofar 960 (35 g), and Dhofar 961 (22 g). In 2006, lunar meteorite Sayh al Uhaymir (SaU) 449 (16.5 g) was found about 100 km to the NE. Despite significant differences in...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20130009072 2023-05-15T18:22:05+02:00 Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole Ziegler, Ryan A. Jolliff, B. L. Korotev, R. L. Unclassified, Unlimited, Publicly available [2013] application/pdf http://hdl.handle.net/2060/20130009072 unknown Document ID: 20130009072 http://hdl.handle.net/2060/20130009072 Copyright, Distribution as joint owner in the copyright CASI Lunar and Planetary Science and Exploration JSC-CN-27961 Lunar and Planetary Science Conference; 18-22 Mar. 2013; The Woodlands, TX; United States 2013 ftnasantrs 2019-07-21T00:40:29Z In 2003, three lunar meteorites were collected in close proximity to each other in the Dhofar region of Oman: Dhofar 925 (49 g), Dhofar 960 (35 g), and Dhofar 961 (22 g). In 2006, lunar meteorite Sayh al Uhaymir (SaU) 449 (16.5 g) was found about 100 km to the NE. Despite significant differences in the bulk composition of Dhofar 961 relative to Dhofar 925/960 and SaU 449 (which are identical to each other), these four meteorites are postulated to be paired based on their find locations, bulk composition, and detailed petrographic analysis. Hereafter, they will collectively be referred to as the Dhofar 961 clan. Comparison of meteorite and component bulk compositions to Lunar Prospector 5-degree gamma-ray data suggest the most likely provenance of this meteorite group is within the South Pole-Aitken Basin. As the oldest, largest, and deepest recognizable basin on the Moon, the composition of the material within the SPA basin is of particular importance to lunar science. Here we review and expand upon the geochemistry and petrography of the Dhofar 961 clan and assess the likelihood that these meteorites come from within the SPA basin based on their bulk compositions and the compositions and characteristics of the major lithologic components found within the breccia. Other/Unknown Material South pole NASA Technical Reports Server (NTRS) Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) South Pole |
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NASA Technical Reports Server (NTRS) |
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Lunar and Planetary Science and Exploration |
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Lunar and Planetary Science and Exploration Ziegler, Ryan A. Jolliff, B. L. Korotev, R. L. Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
topic_facet |
Lunar and Planetary Science and Exploration |
description |
In 2003, three lunar meteorites were collected in close proximity to each other in the Dhofar region of Oman: Dhofar 925 (49 g), Dhofar 960 (35 g), and Dhofar 961 (22 g). In 2006, lunar meteorite Sayh al Uhaymir (SaU) 449 (16.5 g) was found about 100 km to the NE. Despite significant differences in the bulk composition of Dhofar 961 relative to Dhofar 925/960 and SaU 449 (which are identical to each other), these four meteorites are postulated to be paired based on their find locations, bulk composition, and detailed petrographic analysis. Hereafter, they will collectively be referred to as the Dhofar 961 clan. Comparison of meteorite and component bulk compositions to Lunar Prospector 5-degree gamma-ray data suggest the most likely provenance of this meteorite group is within the South Pole-Aitken Basin. As the oldest, largest, and deepest recognizable basin on the Moon, the composition of the material within the SPA basin is of particular importance to lunar science. Here we review and expand upon the geochemistry and petrography of the Dhofar 961 clan and assess the likelihood that these meteorites come from within the SPA basin based on their bulk compositions and the compositions and characteristics of the major lithologic components found within the breccia. |
format |
Other/Unknown Material |
author |
Ziegler, Ryan A. Jolliff, B. L. Korotev, R. L. |
author_facet |
Ziegler, Ryan A. Jolliff, B. L. Korotev, R. L. |
author_sort |
Ziegler, Ryan A. |
title |
Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
title_short |
Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
title_full |
Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
title_fullStr |
Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
title_full_unstemmed |
Lunar Meteorites Sayh Al Uhaymir 449 and Dhofar 925, 960, and 961: Windows into South Pole |
title_sort |
lunar meteorites sayh al uhaymir 449 and dhofar 925, 960, and 961: windows into south pole |
publishDate |
2013 |
url |
http://hdl.handle.net/2060/20130009072 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) |
geographic |
Aitken South Pole |
geographic_facet |
Aitken South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
CASI |
op_relation |
Document ID: 20130009072 http://hdl.handle.net/2060/20130009072 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766201446037979136 |