Sample Petrographic Description
Sample Number | LAP 031079 |
Newsletter | 29,2 |
Location | LaPaz Ice Field |
Field Number | 16427 |
Dimensions (cm) | 1.5 x 1.0 x 1.0 |
Weight (g) | 1.84 |
Original Classification | CM1 Chondrite |
Weathering | |
C | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
The exterior is a dull dark gray color. The interior of this carbonaceous chondrite is a muddy gray with no distinctive features. | |
Thin Section Description (,2) - Tim McCoy | |
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 and carbonate grains are present. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. The meteorite is a highly altered CM chondrite probably of petrologic type 1. |
Antarctic Meteorite Images for Sample LAP 031079 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 031079 | ||||
Thin Section Photo(s) : | ||||