Sample Petrographic Description
Sample Number | DOM 08013 |
Newsletter | 32,2 |
Location | Dominion Range |
Field Number | 18206 |
Dimensions (cm) | 4.0 x 2.0 x 2.0 |
Weight (g) | 28.75 |
Original Classification | CM2 Chondrite |
Pairing | DOM 08010; DOM 08013; DOM 08015; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-55;Ferrosilite (mol%): 1-6 | |
Weathering | |
B/C | |
Fracturing | |
B | |
Macroscopic Description - Roger Harrington, Kathleen McBride | |
Fractured, dull black fusion crust covers the exterior surface. Areas without fusion crust are a chocolate brown. The interior is a dark gray to black fine grained matrix with some white, tan and gray chondrules/inclusions. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Linda Welzenbach | |
The meteorites are so similar that a single description suffices. The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal, sulfide and carbonate grains are present. Olivine compositions are Fa1-55; pyroxene is Fs1-6. Aqueous alteration of the matrix is substantial, but the chondrules are only modestly altered. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample DOM 08013 | ||||
Lab Photo(s) : | ||||
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Antarctic Meteorite Images for Sample DOM 08013 | ||||
Thin Section Photo(s) : | ||||
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References for Sample DOM08013 | |
Alexander, C.M.O'D., Wynn, J.G., and Bowden, R., 2022, Sulfur abundances and isotopic compositions in bulk carbonaceous chondrites and insoluble organic material: Clues to elemental and isotopic fractions of volatile chalcophiles, Meteoritics & Planetary Science, 57, 334-351, doi:10.1111/maps.13746. | |
Lee, M.R., Cohen, B.E., Boyce, A.J., Hallis, LJ., and Daly, L., 2021, The pre-atmospheric hydrogen inventory of CM carbonaceous chondrites. Geochimica et Cosmochimica Acta, 309, 31-44, https://doi.org/10.1016/j.gca.2021.06.013. | |
Labidi, J., Farquhar, J., Alexander, C. O. D., Eldridge, D. L., & Oduro, H. , 2017, Mass independent sulfur isotope signatures in CMs: Implications for sulfur chemistry in the early solar system. . Geochimica et Cosmochimica Acta, 196, 326-350, http://dx.doi.org/10.1016/j.gca.2016.09.036. | |
Alexander, C. M. O'D., Bowden, R., Fogel, M. L., Howard, K. T., 2015, Carbonate abundances and isotopic compositions in chondrites. Meteoritics & Planetary Science, 50, 810-833, http://dx.doi.org/10.1111/maps.12410. | |
Howard, K. T., Alexander, C. M. O'D., Schrader, D. L., Dyl, K. A., 2015, Classification of hydrous meteorites (CR, CM and C2 ungrouped) by phyllosilicate fraction: PSD-XRD modal mineralogy and planetesimal environments. Geochimica et Cosmochimica Acta, 149, 15-Jan-15, 206-222, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2014.10.025. | |
Alexander, C.O'D. M. O, Bowden,. R., Fogel, M. L., Howard, K. T., Herd, C. D. K., Nittler, L. R., 2012, The provenances of asteroids, and their contributions to the volatile inventories of the terrestrial planets. Science, 337(6095), 2012, 721-723. |