Sample Petrographic Description
Sample Number | DOM 08001 |
Newsletter | 33,1 |
Location | Dominion Range |
Field Number | 19327 |
Dimensions (cm) | 12.5 x 13.5 x 8.0 |
Weight (g) | 1305.40 |
Original Classification | Eucrite (Brecciated) |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 25-6 | |
Weathering | |
A/B | |
Fracturing | |
A | |
Macroscopic Description - Roger Harrington | |
Shiny black fusion crust covers 80% of the exterior surface. The remaining 20% is a light gray medium to fine-grained matrix with medium gray mottling and trace rust spots. This sample has several elongate, oriented voids on the top-west face that range in diameter from 1 to 14 mm. The interior is a light gray medium to fine-grained matrix with medium gray mottling and trace rust spots. | |
Thin Section Description (,2) - Cari Corrigan | |
This meteorite is dominated by fine-grained (~200 micron average grain size) basaltic material which occurs as both the host and clasts within these meteorites. Occasional coarser-grained clasts, with grain sizes up to 1.5 mm, are observed. Mineral compositions are homogeneous with orthopyroxene (Fs1Wo2), with lamellae of augite (Fs5Wo5), and plagioclase (An6Or0.8). The Fe/Mn ratio of the pyroxene is ~34. The meteorite is a brecciated eucrite. |
Antarctic Meteorite Images for Sample DOM 08001 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample DOM 08001 | ||||
Thin Section Photo(s) : | ||||
References for Sample DOM08001 | |
Dyar, M.D., Wallace, S.M., Burbine, T.H., and Sheldon, D.R., 2023, A machine learning classification of meteorite spectra applied to understanding asteroids. Icarus, 406, 115718, https://doi.org/10.1016/j.icarus.2023.115718. | |
Mittlefehldt, D.W., Greenwood, R.C., Berger, E.L., Le, L., Peng, Z.X., and Ross, D.K., 2022, Eucrite-type achondrites: Petrology and oxygen isotope compositions, Meteoritics & Planetary Science, 57, 484-526, doi:10.1111/maps.13730. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |