Sample Petrographic Description
Sample Number | LAP 02422 |
Newsletter | 27,3 |
Location | LaPaz Ice Field |
Field Number | 15985 |
Dimensions (cm) | 1.5 x 1.0 x 1.25 |
Weight (g) | 1.99 |
Original Classification | CM1 Chondrite |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Small black patches of fusion crust are visible on the exterior surface. The interior is gray in color and is fine grained. The chondrules/clasts are dark gray in color. | |
Thin Section Description (,2) - Tim McCoy, Cari Corrigan | |
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 02422 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 02422 | ||||
Thin Section Photo(s) : | ||||