Newsletter |
37,1 |
Location |
Dominion Range |
Field Number |
21899 |
Dimensions (cm) |
6.0 x 5.5 x 2.2 |
Weight (g) |
97.20 |
Original Classification |
CO3 Chondrite |
Updated Classification |
CO3.00 Chondrite |
Pairing |
DOM 08006;
DOM 10847;
|
Fayalite (mol%): 14-35;Ferrosilite (mol%): 0-1 |
B |
A/B |
The exteriors have black fusion crust, fractured and frothy in areas with some oxidation. Areas without fusion crust are weathered brown with some evaporites visible. The interiors are a black matrix with heavy oxidation and small white inclusions visible. |
The sections consist of abundant small (up to 1 mm) chondrules, chondrule fragments and mineral grains in a dark matrix. Metal and sulfide occur both within and rimming the chondrules. Olivine ranges in composition from Fa14-56, with a continuous range of intermediate compositions and an average at Fa31-35. Pyroxenes range Fs1-9Wo1-3. The matrix appears to consist largely of Fe-rich olivine. These meteorites are CO3 chondrites and are likely paired. |
Reclassified to a CO3.00 chondrite based on cosmic ray exposure age, C, N, and H contents.
Righter K., Alexander, C., Foustoukos, D., Mertens, C.A.K., Busemann, H., Schutt, J. (2021b) Pairing Relations Within CO3 Chondrites Recovered at the Dominion Range and Miller Range, Transantarctic Mountains, 84th Annual Meteoritical Society meeting, Chicago, abstract #6191. |
Pairing updated to include DOM 08006 and 10847 together based on Righter K., Alexander, C., Foustoukos, D., Mertens, C.A.K., Busemann, H., Schutt, J. (2021b) Pairing Relations Within CO3 Chondrites Recovered at the Dominion Range and Miller Range, Transantarctic Mountains, 84th Annual Meteoritical Society meeting, Chicago, abstract #6191. |