Sample Petrographic Description
| Sample Number | MIL 07277 |
| Newsletter | 33,1 |
| Location | Miller Range |
| Field Number | 17371 |
| Dimensions (cm) | 3.0 x 3.0 x 2.0 |
| Weight (g) | 34.10 |
| Original Classification | CV3 Chondrite |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 0-13;Ferrosilite (mol%): 1-9 | |
| Weathering | |
| B | |
| Fracturing | |
| A/B | |
| Macroscopic Description - Cecilia Satterwhite | |
| The exterior has brown/black fusion crust with oxidation and rusty patches. The interior is dark gray to black matrix with some oxidation. Abundant inclusions and chondrules are visible. | |
| Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Glenn MacPherson | |
| This section exhibits large chondrules (up to 3 mm), metal, silicate particles and CAIs in a dark matrix. It is heavily weathered and shock flattened. Olivines range from Fa0-13 and low-Ca pyroxene is Fs1-9. The meteorite is an unequilibrated carbonaceous chondrite, probably a reduced CV3. | |
| Antarctic Meteorite Images for Sample MIL 07277 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample MIL 07277 | ||||
| Thin Section Photo(s) : | ||||
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| References for Sample MIL07277 | |
| 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., Gattacceca, J., Garenne, A., Eschrig, J., Rochette, P., and Ruggiu, L.K., 2020, Water and heat: New constraints on the evolution of the CV chondrite parent body. , Geochimica et Cosmochimica Acta, 276 , 363–383 . | |
| Bonal, L., Gattacceca, J., Garenne, A., Eschrig, J., Rochette, P., and Ruggiu, L.K., 2020, Water and heat: New constraints on the evolution of the CV chondrite parent body. , Geochimica et Cosmochimica Acta, 276 , 363–383 . | |
| Gattacceca, J., Bonal, L., Sonzogni, C., and Longerey, J., 2020, CV Chondrites: More than one parent body. , Earth and Planetary Science Letters, 547 , 116467 , doi: 10.1016/j.epsi2020.116467. | |
| 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 . | |