Sample Petrographic Description
Sample Number | QUE 93001 |
Newsletter | 17,3 |
Location | Queen Alexandra Range |
Field Number | 8573 |
Dimensions (cm) | 10 x 7.5 x 6.5 |
Weight (g) | 1050.80 |
Original Classification | Mesosiderite |
Pairing | QUE 86900; QUE 93001; QUE 93002; QUE 93126; QUE 93150; QUE 93517; QUE 93575; QUE 93584; QUE 93586; QUE 94614; QUE 94639; |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 23-56 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
Small, dull patches of fusion crust remain on QUE 93001 but are gone from 93002. The overall color of the exterior of these two specimens is red-brown. Large and small pyroxene crystals, both green and black in color, are visible on the exterior surfaces. The largest crystal noted in 93001 was 3 x 2 cm in dimension. Numerous fractures penetrate the interior of the specimens making the meteorite easy to break apart. Chipping the specimens revealed an interior that is red-brown, pyroxene-rich, and contains some rounded dark inclusions. | |
Thin Section Description (,5) - Brian Mason | |
The sections are identical and evidently represent a single meteorite. They show pyroxene and plagioclase clasts, up to 2.4 mm across, in a matrix of nickel-iron and minor troilite (the nickel-iron extensively weathered to limonite). Most of the pyroxene is hypersthene, with composition Wo3Fs24, but a few grains of pigeonite were analyzed. Plagioclase compositions are in the range An90-96. The meteorite is a mesosiderite, and can be confidently paired with QUE 86900 (AMN 10(2), 1987). |
Antarctic Meteorite Images for Sample QUE 93001 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample QUE 93001 | ||||
Thin Section Photo(s) : | ||||
References for Sample QUE93001 | |
Chernonozhkin, S. M., Goderis, S., Costas-RodrÃguez, M., Claeys, P., Vanhaecke, F., 2016, Effect of parent body evolution on equilibrium and kinetic isotope fractionation: a combined Ni and Fe isotope study of iron and stony-iron meteorites. Geochimica et Cosmochimica Acta, 186, 168-188. | |
Schultz, L., Franke, L., 2004, Helium, neon, and argon in meteorites: A data collection. Meteoritics & Planetary Science, 39, 1889-1890, http://dx.doi.org/10.1111/j.1945-5100.2004.tb00083.x. | |
Benoit, P. H., Sears, D. W. G., Akridge, J. M. C., Bland, P. A., Berry, F. J., Pillinger, C. T., 2000, The non-trivial problem of meteorite pairing. Meteoritics & Planetary Science, 35, 393-417. | |
Haack, H., Scott, E. R. D., Rasmussen, K. L., 1996, Thermal and shock history of mesosiderites and their large parent asteroid. Geochimica et Cosmochimica Acta, 60 Issue 14, Jul-96, 2609-2619, ISSN 0016-7037, http://dx.doi.org/10.1016/0016-7037(96)00110-X. |