Sample Petrographic Description
Sample Number | EET 96015 |
Newsletter | 21,1 |
Location | Elephant Moraine |
Field Number | 9616 |
Dimensions (cm) | 0.75 x 0.75 x 0.5 |
Weight (g) | 0.52 |
Original Classification | L3.4 Chondrite |
Updated Classification | L3.15 Chondrite |
Pairing | EET 96015; EET 96216; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 2-33;Ferrosilite (mol%): 2-6 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The exterior of this ordinary chondrite has black patches of fusion crust with some brown rusty areas visible. The interior is a gray matrix with irregularly shaped euhedral/subhedral inclusions. The inclusions have dark rims and have an almost "interlocking" appearance. These inclusions are various colors and sizes. | |
Thin Section Description (,3) - Brian Mason | |
The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 1.2 mm across, in a small amount of black matrix which contains accessory nickel-iron and troilite. Microprobe analyses show olivine of variable composition, Fa2-33, with a mean of Fa12. Pyroxene composition is Fs2-6. The meteorite is an L3 chondrite (estimated L3.4). | |
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 96015 | ||||
Thin Section Photo(s) : | ||||
References for Sample EET96015 | |
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. |