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Pecora Escarpment 91008 | |||||||||||||||||||||||||||||
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Basic information | Name: Pecora Escarpment 91008 This is an OFFICIAL meteorite name. Abbreviation: PCA 91008 Observed fall: No Year found: 1991 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 10 approved meteorites classified as CM2-an. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||
Comments: | Revised 3 Jun 2019: reclassified in AMN 41(1) | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from AMN 15(2):
Sample No.: PCA91008 Location: Pecora Escarpment Field Number. 8801 Dimensions (cm): 3.9 x 3.1 x 3.4 Weight (g): 51.7 Meteorite Type: C2 chondrite
Macroscopic Description: Robbie Marlow Ninety percent of the exterior is covered with thin, dull, black fusion crust. A few irregular-shaped beige-colored inclusions dot the dark gray to black matrix. Tiny specks of metal are scattered throughout the interior.
Thin Section (.7) Description: Brian Mason The section shows numerous small chondrules (up to 0.6 mm across), irregular aggregates, and mineral grains in a black matrix. Remnants of fusion crust are present along one edge. Microprobe analyses show olivine compositions mainly Fa0-2, but with a few iron-rich grains; pyroxene compositions are mainly Fs1, but range up to Fs7. The meteorite is a C2 chondrite.
Writeup from AMN 41(1): | ||||||||||||||||||||||||||||
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Data from: MB76 Table 2 Line 4870: |
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References: | Published in Antarctic Meteorite Newsletter 15(2) (1992), JSC, Houston Published in Antarctic Meteorite Newsletter 41(1) (2018), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:![]() |
Statistics: This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||||||||||
Proximity search: |