Sample Petrographic Description
Sample Number | DOM 08468 |
Newsletter | 34,1 |
Location | Dominion Range |
Field Number | 19938 |
Dimensions (cm) | 4.0 x 4.0 x 2.5 |
Weight (g) | 64.81 |
Original Classification | H3.5 Chondrite |
Updated Classification | L3.5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 4-44;Ferrosilite (mol%): 2 | |
Weathering | |
B/C | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
The exterior has 40% black fusion crust with pits. The dark gray interior is fine grained and has | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach | |
The section exhibits numerous, well-defined chondrules (up to 1.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Polysynthetically twinned pyroxene is abundant. The meteorite is moderately weathered. Silicates are unequilibrated; olivines range from Fa4-44, and pyroxenes are Fs34Wo2. The meteorite is an H3 chondrite (estimated subtype 3.5). | |
Reclassification Notes (AMN 41,2) | |
Re-classified to L using magnetic susceptibility. |
Antarctic Meteorite Images for Sample DOM 08468 | ||||
Thin Section Photo(s) : | ||||
References for Sample DOM08468 | |
Eschrig, J., Bonal, L., Mahlke, M., Carry,B., Beck, P., Gattacceca, J., 2022, Investigating S-type asteroid surfaces through reflectance spectra of ordinary chondrites, Icarus, 381. | |
Eschrig, J., Bonal, L., Beck, P., Prestgard, T.J., 2021, Spectral reflectance analysis of type 3 carbonaceous chondrites and search for their asteroidal parent bodies. Icarus, 354, 114034, https://doi.org/10.1016/j.icarus.2020.114034. | |
Bonal, L., Quirico, E., Flandinet, L., Montagnac, G., 2016, Thermal history of type 3 chondrites from the Antarctic meteorite collection determined by Raman spectroscopy of their polyaromatic carbonaceous matter. Geochimica et Cosmochimica Acta, 189, 312-337. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |