Sample Petrographic Description
| Sample Number | DOM 08004 |
| Newsletter | 32,2 |
| Location | Dominion Range |
| Field Number | 18503 |
| Dimensions (cm) | 7.5 x 5.5 x 4.0 |
| Weight (g) | 294.50 |
| Original Classification | CO3 Chondrite |
| Pairing | DOM 08004; DOM 08139; DOM 08351; DOM 10101; DOM 10104; DOM 14019; DOM 14127; DOM 14305; DOM 18019; DOM 18069; DOM 19049; DOM 19068; DOM 19099; DOM 19170; DOM 19179; |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 0-51;Ferrosilite (mol%): 1-15 | |
| Weathering | |
| B | |
| Fracturing | |
| B | |
| Macroscopic Description - Roger Harrington, Kathleen McBride | |
| Dull black fusion crust, 1-2mm in thickness, covers 85% of the exteriors. The fusion crust is cracked on all the faces but the interior is not. The remaining 15% is a dark brown, fine grained matrix (006 has a 1 mm blue crystal in a vug on the Top-North end). The overall exterior of 006 has a pronounced aerodynamic shape with flow lines on the Bottom side. The interiors are a dark brown to black fine grained matrix with some mm sized white chondrules. | |
| Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Linda Welzenbach | |
| The sections consist of abundant small (up to 1 mm) chondrules, chondrule fragments and mineral grains in a dark matrix. Metal and sulfide occur within and rimming the chondrules. Olivine ranges in composition from Fa0-51 and pyroxenes range from Fs1-15. The meteorites are CO3 chondrites. | |
| Reclassification Notes (AMN 32,2) | |
| Removed several pairing group members (DOM 10121, DOM 10299, DOM 10847, and DOM 14359) based on petrography, CRE ages, Cr contents of olibvine, and H, C and N bulk and isotopic compositions. Righter K., Alexander, C., Foustoukos, D., Mertens, C.A.K., Busemann, H., Schutt, J. (2021b) Pairing Relations Within CO3 Chondrites Recovered at the Dominion Range and Miller Range, Transantarctic Mountains, 84th Annual Meteoritical Society meeting, Chicago, abstract #6191. | |
| Notes | |
| pairing group updated for AMN 44 no. 2 based on information in : Righter K., Alexander, C., Foustoukos, D., Mertens, C.A.K., Busemann, H., Schutt, J. (2021b) Pairing Relations Within CO3 Chondrites Recovered at the Dominion Range and Miller Range, Transantarctic Mountains, 84th Annual Meteoritical Society meeting, Chicago, abstract #6191. | |
| Antarctic Meteorite Images for Sample DOM 08004 | ||||
| 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 DOM 08004 | ||||
| Lab Photo(s) : | ||||
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| Antarctic Meteorite Images for Sample DOM 08004 | ||||
| Thin Section Photo(s) : | ||||
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| References for Sample DOM08004 | |
| Bodenan, JD, Starkey, N.A., Russell, S.S., Wright, I.P., Franchi, I. A., 2020, One of the earliest refractory inclusions and its implications for solar system history. Geochimica et Cosmochimica Acta,, 286, 214–226. | |
| Ma, C., Krot, A. N., Beckett, J. R., Nagashima, K., Tschauner, O., Rossman, G. R., Simon, S. B., Bischoff, A., 2020, Warkite, Ca2Sc6Al6O20, a new mineral in carbonaceous chondrites and a key-stone phase in ultrarefractory inclusions from the solar nebula. Geochimica et Cosmochimica Acta, 277, 52-86, doi: 10.1016/j.gca.2020.03.002. | |
| Krot, A.N., Nagashima, K., Simon, S.B., Ma, C., Connolly Jr, H.C., Huss, G.R., Davis, A.M., and Bizzarro, M., 2019c, Mineralogy, petrography, and oxygen and aluminum-magnesium isotope systematics of grossite-bearing refractory inclusions. Geochemistry, 79, 125529, https://doi.org/10.1016/j.chemer.2019.08.001. | |
| Krot, A.N., Ivanova, M.A., and Bischoff, A. , Ma, C., Nagashima, K., Davis, A.M., Beckett, J.R., Simon, S.B., Komatsu, M., Fagan, T.J., Brenker, F., 2019b, Mineralogy, petrography, and oxygen isotopic compositions of ultrarefractory inclusions from carbonaceous chondrites. Geochemistry, 79, 125519, https://doi.org/10.1016/j.chemer.2019.07.001. | |
| Krot, A. N., 2019a, Refractory inclusions in carbonaceous chondrites: Records of early solar system processes. Meteoritics & Planetary Science, 54, 1647-1691. | |
| Simon, Steven B., Alexander N. Krot, and Kazuhide Nagashima , 2019, Oxygen and Al-Mg isotopic compositions of grossite-bearing refractory inclusions from CO3 chondrites. Meteoritics & Planetary Science, 54, 1362-1378. | |
| Kööp, L., Davis, A. M., Krot, A. N., Nagashima, K., & Simon, S. B., 2018, Calcium and titanium isotopes in refractory inclusions from CM, CO, and CR chondrites. Earth and Planetary Science Letters, 489, 179-190. | |
| McAdam, M.M., Sunshine, J.M., Howard, K.T., Alexander, C.M., McCoy, T.J., Bus, S.J., 2018, Spectral evidence for amorphous silicates in least-processed CO meteorites and their parent bodies. Icarus, 306, 32-49, https://doi.org/10.1016/j.icarus.2018.01.024. | |
| Corrigan, C.M., Welzenbach, L.C., Righter, K., McBride, K.M., McCoy, T.J., Harvey, R.P., and Satterwhite, C.E., 2015, A Statistical Look at the U.S. Antarctic Meteorite Collection. In Righter, K., Corrigan, C.M., McCoy, T.J., and Harvey, R.P. Meteorites: A Pictorial Guide to the Collection, First Edition, AGU Wiley, pp. 173-187. | |
| Simon, S. B., Grossman, L., 2015, Refractory inclusions in the pristine carbonaceous chondrites DOM 08004 and DOM 08006. Meteoritics & Planetary Science, 50, 1032-1049, http://dx.doi.org/10.1111/maps.12452. | |
| RELAB, , Reflectance Experiment Lab , catalogue of samples. | |