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| Pecora Escarpment 91327 | |||||||||||||||||||||||||
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| Basic information | Name: Pecora Escarpment 91327 This is an OFFICIAL meteorite name. Abbreviation: PCA 91327 Observed fall: No Year found: 1991 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  5.2 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 636 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 16(2):
Sample No.: PCA91327 Location: Pecora Escarpment Dimensions (cm): 2.0 x 1.5 x 1.3 Weight (g): 5.2 Meteorite Type: C2 chondrite
Macroscopic Description: Robbie Marlow PCA91327 has dull, black, frothy fusion crust covering 40% of the exterior surface. The interior matrix is black, fine-grained, and friable. Abundant white inclusions are scattered throughout.
Thin Section (,2) Description: Brian Mason The' section shows chondrules, up to 0.9 mm across, irregular aggregates, and small mineral grains in a black matrix. The minerals are mainly olivine, with minor pyroxene. Olivine compositions are mostly near MgSiO4, but occasional iron-rich grains were analyzed, up to Fa42. Pyroxene compositions range from Fs0.2 to Fs1.1. The matrix appears to be largely iron-rich serpentine. The meteorite is a C2 chondrite.
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| Data from: MB76 Table 2 Line 5120: |
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| References: | Published in Antarctic Meteorite Newsletter 16(2) (1993), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:
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Statistics: This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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