Sample Petrographic Description
Sample Number | EET 96216 |
Newsletter | 21,2 |
Location | Elephant Moraine |
Field Number | 9676 |
Dimensions (cm) | 1.0 x 0.5 x 1.0 |
Weight (g) | 0.87 |
Original Classification | L3.8 Chondrite |
Updated Classification | L3.15 Chondrite |
Pairing | EET 96015; EET 96216; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 8-28;Ferrosilite (mol%): 2-21 | |
Weathering | |
Ce | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Fusion crust covers 25% of the exterior surface of this meteorite. It is dull and has a rough texture. The interior has a gray matrix with light colored, sub-mm-sized chondrules. The meteorite is very rusty in the center and evaporites are present. | |
Thin Section Description (,2) - Tim McCoy | |
The section exhibits numerous well-defined chondrules (up to 1.4 mm), metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is abundant. Silicates are unequilibrated; olivines range from Fa8-28 and pyroxenes from Fs2-21. The meteorite is probably an L chondrite of subtype ~3.8. | |
Reclassification Notes (AMN 44,2) | |
Reclassified as an L3.15 Chondrite based on Cr contents of Type II chondrule olivine. Pairing groups adjusted based on olivine composition and recovery location. Righter, K., Schutt, J., Lunning, N., Harvey, R., & Karner, J. (2021a) Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas. Meteoritics & Planetary Science 56, 1556-1578. |
Antarctic Meteorite Images for Sample EET 96216 | ||||
Thin Section Photo(s) : | ||||
References for Sample EET96216 | |
Righter, K., Schutt, J., Lunning, N., Harvey, R, and Karner, J., 2021, Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas. Meteoritics & Planetary Science, 56, 1556-1573, doi: 10.1111/maps.13707. |