Sample Petrographic Description
| Sample Number | LAP 04824 |
| Newsletter | 30,2 |
| Location | LaPaz Ice Field |
| Field Number | 17037 |
| Dimensions (cm) | 2.25 x 2.0 x 0.5 |
| Weight (g) | 1.71 |
| Original Classification | CM1 Chondrite |
| Weathering | |
| B | |
| Fracturing | |
| B | |
| Macroscopic Description - Kathleen McBride | |
| The exterior is black/brown with no fusion crust. The interior is a soft black matrix with mm sized light color inclusions. | |
| Thin Section Description (,2) - Tim McCoy, Lauren LaCroix, Linda Welzenbach | |
| The section consists of a few small chondrules (up to 0.5 mm) that have been completely replaced by phyllosilicate set in an Fe-rich serpentine matrix. No isolated mineral grains or CAIs are apparent; sulfide grains are present. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. The meteorite is a highly altered CM1 chondrite. | |
| Antarctic Meteorite Images for Sample LAP 04824 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample LAP 04824 | ||||
| Lab Photo(s) : | ||||
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| Antarctic Meteorite Images for Sample LAP 04824 | ||||
| Thin Section Photo(s) : | ||||
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| References for Sample LAP04824 | |
| Rubin, A. E., 2010, Physical properties of chondrules in different chondrite groups: Implications for multiple melting events in dusty environments. , Geochimica et Cosmochimica Acta, 74 Issue 16 , 15-Aug-10 , 4807-4828 , ISSN 0016-7037 , http://dx.doi.org/10.1016/j.gca.2010.05.018 . | |