Sample Petrographic Description
| Sample Number | MET 00737 |
| Newsletter | 26,1 |
| Location | Meteorite Hills |
| Field Number | 13182 |
| Dimensions (cm) | 3.5 x 1.5 x 2.0 |
| Weight (g) | 23.24 |
| Original Classification | CO3 Chondrite |
| Updated Classification | CO3.6 Chondrite |
| Pairing | MET 00694; MET 00711; MET 00737 |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 0-33;Ferrosilite (mol%): 1-5 | |
| Weathering | |
| A/B | |
| Fracturing | |
| A/B | |
| Macroscopic Description - Kathleen McBride | |
| Dull, black fusion crust covers most if not all of the exteriors of these two meteorites. The interiors show small chondrules of various light-colored shades. They are hard, with a high metal content and are fine-grained. | |
| Thin Section Description (,2) - Tim McCoy | |
| A single description suffices for these paired meteorites that were found within 1.5 km of each other. 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 Fa0-33, with a clustering of compositions around Fa30. Orthopyroxene is Fs1-8. The meteorites are CO3 chondrite of moderately high subtype (estimated 3.6). | |
| Reclassification Notes (AMN 31,1) | |
| Reclassified as CO3.6 Chondrite in AMN 31,1 | |
| Antarctic Meteorite Images for Sample MET 00737 | ||||
| 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 MET 00737 | ||||
| Lab Photo(s) : | ||||
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| Antarctic Meteorite Images for Sample MET 00737 | ||||
| Thin Section Photo(s) : | ||||
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| References for Sample MET00737 | |
| 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 . | |
| 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 . | |
| Cloutis, E. A., Hudon, P., Hiroi, T., Gaffey, M. J., Mann, P. J., 2012, Spectral reflectance properties of carbonaceous chondrites -- 5: CO chondrites. , Icarus, 220 Issue 2 , Aug-12 , 466-486 , ISSN 0019-1035 , http://dx.doi.org/10.1016/j.icarus.2012.05.019 . | |
| Clark, B. E., Ockert-Bell, M. E., Cloutis, E. A., Nesvorny, D., Mothe-Diniz, T., Bus, S. J., 2009, Spectroscopy of K-complex asteroids: Parent bodies of carbonaceous meteorites?. , Icarus, 202 Issue 1 , Jul-09 , 119-133 , ISSN 0019-1035 , http://dx.doi.org/10.1016/j.icarus.2009.02.027 . | |
| RELAB, , Reflectance Experiment Lab , catalogue of samples, . | |