Sample Petrographic Description
Sample Number | MIL 07002 |
Newsletter | 31,2 |
Location | Miller Range |
Field Number | 18651 |
Dimensions (cm) | 11.0 x 9.5 x 7.5 |
Weight (g) | 758.39 |
Original Classification | CV3 Chondrite |
Updated Classification | CV 3.7 Chondrite Oxidized A |
Pairing | MIL 07590; MIL 07002; MIL 07385; MIL 07403; MIL 07669; MIL 07671; MIL 07678; MIL 07681; MIL 07683; MIL 07684; MIL 07685; MIL 07686; MIL 07690; MIL 07691; MIL 07694; MIL 07696; MIL 07698; MIL 07699; MIL 090072; MIL 090170; MIL 090171; MIL 090172; MIL 090173; MIL 090174; MIL 090175; MIL 090176; MIL 090177; MIL 090178; MIL 090179; MIL 090184; MIL 091010; MIL 11206; MIL 15306; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-7;Ferrosilite (mol%): 1 | |
Weathering | |
A/Be | |
Fracturing | |
B/C | |
Macroscopic Description - Roger Harrington | |
Dull black fusion crust covers 15% of the exterior surface. 85% of the exterior is a dark greenish gray fine grained matrix with approximately 15% light to medium gray inclusions distributed evenly across the surface of the sample. The interior is a medium gray fine grained matrix with light gray inclusions and trace amounts of evaporite material around exposed cracks. | |
Thin Section Description (,6) - Tim McCoy, Linda Welzenbach, Cari Corrigan, Rhiannon Mayne | |
The section exhibits large chondrules (up to 3 mm) and CAIs in a dark matrix. Olivines range from Fa0-7 and pyroxene is Fs1. The meteorite is an unequilibrated carbonaceous chondrite, probably a CV3. | |
Reclassification Notes (AMN 46,1) | |
Reclassification and pairing based on Raman spectroscopy (petrologic type 3.7), and on Ni content of metal and sulfide and magnetic susceptibility (Oxidized A). Details are reported in Righter et al. (2022); doi: 10.1111/maps.13932. |
Antarctic Meteorite Images for Sample MIL 07002 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 07002 | ||||
Thin Section Photo(s) : | ||||
Antarctic Meteorite Scans for Sample MIL 07002 | ||||
XCT Scan(s) : | ||||
XCT Scan of Sample MIL 07002 |
References for Sample MIL07002 | |
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. | |
Hiroi, T., Ohtsuka, K., Howard, K.T., Robertson, K.R., and Milliken, R.E., Kaiden, H., Imae, N., Misawa, K., Kojima, H., Sasakia, S., Matsuokaa, M., Nakamura, T., Bish, D.L., 2021, UV-visible-infrared spectral survey of Antarctic carbonaceous chondrite chips. Polar Science, 29, 100723, https://doi.org/10.1016/j.polar.2021.100723. | |
Tanbakouei, S., Trigo-Rodriguez, J.M., Llorca, J., Moyano-Cambero, C.E., Williams, I.P., and Rivkin, A.S., 2021, The reflectance spectra of CV–CK carbonaceous chondrites from the near-infrared to the visible. Monthly Notices of the Royal Astronomical Society, 507, 651–662, https://doi.org/10.1093/mnras/stab2146. | |
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. | |
Wasson, J. T., Isa, J., Rubin, A. E., 2013, Compositional and petrographic similarities of CV and CK chondrites: A single group with variations in textures and volatile concentrations attributable to impact heating, crushing and oxidation. Geochimica et Cosmochimica Acta, 108, 1-May-13, 45-62, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2013.01.011. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |