Sample Petrographic Description
Sample Number | EET 96238 |
Newsletter | 21,2 |
Location | Elephant Moraine |
Field Number | 9412 |
Dimensions (cm) | 1.0 x 0.5 x 0.5 |
Weight (g) | 0.39 |
Original Classification | CH3 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-40;Ferrosilite (mol%): 0-4 | |
Weathering | |
A | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The exterior of this meteorite has black patches of fusion crust. The interior is a fine grained, gray powdery matrix. It contains some rusty patches and small <1 mm chondrules of whitish color. Carbonaceous clasts are present within the matrix. | |
Thin Section Description (,2) - Tim McCoy | |
The section consists of an aggregate of very small chondrules (less than 0.2 mm), mineral fragments, and metal. Most olivine and pyroxene grains appear quite reduced (less than Fa5 or Fs4), although some FeO rich grains are present (up to Fa40). Carbonaceous clasts are present. The metal is Si-free. The meteorite is a CH3 chondrite similar to ALH 85085 (1988, EPSL 91, 33-54). |
Antarctic Meteorite Images for Sample EET 96238 | ||||
Thin Section Photo(s) : | ||||
References for Sample EET96238 | |
Krot, A.N., Petaev, M.I., Nagashima, K., Dobric, E., Johnson, B.C., and Cashion, M.D., 2022, Impact plume-formed and protoplanetary disk high-temperature components in CB and CH metal-rich carbonaceous chondrites, Meteoritics & Planetary Science, 57, 352-380, doi: 10.1111/maps.13717. | |
Krot, A. N., Mckeegan, K. D., Huss, G. R., Liffman, K., Sahijpal, S., Hutcheon, I. D., Srinivasan, G., Bischoff, A., Keil, K., 2006, Aluminum-Magnesium and Oxygen Isotope Study of Relict Ca-Al-rich Inclusions in Chondrules. ApJ, 639, 1227, http://dx.doi.org/10.1086/498610 . | |
Krot, A. N., Meibom, A., Petaev, M. I., Keil, K., Zolensky, M. E., Saito, A., Mukai, M., Ohsumi, K., 2000, Ferrous silicate spherules with euhedral iron-nickel metal grains from CH carbonaceous chondrites: Evidence for supercooling and condensation under oxidizing conditions. Meteoritics & Planetary Science, 35, 1249-1258. |