|
Grove Mountains 020090 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Grove Mountains 020090 This is an OFFICIAL meteorite name. Abbreviation: GRV 020090 Observed fall: No Year found: 2003 Country: Antarctica [Collected by Chinese Antarctic Research Expedition (CARE)] Mass: 7.5 g | ||||||||||||
Classification history: |
This is 1 of 318 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||
Writeup |
Writeup from MB 89:
Grove Mountains 020090 Antarctica Found 2003 Martian meteorite (lherzolite) This stone weighs 7.54 g, and measures 24 mm ´ 22 mm ´ 20 mm in size. It has a nearly complete glazy fusion crust with clearly visible flow lines. Classification and Mineralogy (CAS): It consists of poikilitic and interstitial parts. The poikilitic part is composed of several pyroxene oikocrysts, each having a pigeonite core and a thick augite rim and enclosing several euhedral grains of olivine and chromite. The interstitial part consists of olivine and pigeonite and maskelynite, with accessory laths of merrillite coexisting with maskelynite. Magma inclusions occur mainly in olivine and a few in pyroxene oikocrysts. Mineral chemistry: olivine, Fa30-40; pigeonite, En60-72Fs24-29Wo3-14; augite, En47-52Fs16-19Wo31-36; maskelynite, An37-57Ab41-58Or1-6; MnO/FeO ratio of pyroxenes, 26.4. Shock stage, S5; weathering grade, W1. This meteorite is unlikely to be paired with GRV 99027, another Martian lherzolite found in the same region, based on their distinct petrographical and mineral chemical features. | ||||||||||||
Data from: MB89 Table 4 Line 15: |
|
||||||||||||
Institutions and collections |
CAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011) |
||||||||||||
Catalogs: |
| ||||||||||||
References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
| ||||||||||||
Geography: |
Statistics: This is 1 of 44274 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||
Proximity search: | |||||||||||||
Crosslinks: |
This lists all records that are linked to this record and to each other.
| ||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||
Revision history: |
This lists important revisions made to data for this record.
|