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发表于 2014-5-10 04:05:39
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中国有个完整新鲜的R4,1112克,获得批准。NWA6468
Name: Northwest Africa 6468
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6468
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass: 1112 g
Classification
history:
Recommended: R4 [explanation]
This is 1 of 47 approved meteorites classified as R4. [show all]
Search for other: Rumuruti chondrites (type 4-7), Rumuruti chondrites
Comments: Approved 30 Apr 2014
Data from:
MB103
Table 0
Line 0:
Place of purchase: Ouarzazate
Date: P 2010-10
Mass (g): 1112
Pieces: 1
Class: R4
Shock stage: S3
Weathering grade: W4
Fayalite (mol%): 39.7±0.4 (n=9); NiO 0.1-0.62%
Ferrosilite (mol%): 29.3±0.3 (n=2); 12.0±0.7 (n=8)
Wollastonite (mol%): 1.5±0.2 (n=2); 48.3±0.5 (n=8)
Classifier: Y. Wu, PMO
Type spec mass (g): 20
Type spec location: PMO
Main mass: Ke Zuokai
Comments: Matrix 55 vol%; numerous chondrules, most irregularly shaped, 0.2 to 4 mm.; submitted by W. Hsu, PMO
Institutions
and collections PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011) |
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