Sample Petrographic Description
Sample Number | QUE 97429 |
Newsletter | 23,1 |
Location | Queen Alexandra Range |
Field Number | 11158 |
Dimensions (cm) | 3.5 x 2.8 x 2.0 |
Weight (g) | 39.91 |
Original Classification | LL5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 28;Ferrosilite (mol%): 23 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
Eighty percent of this ordinary chondrite’s exterior is covered with dull brown fusion crust. The interior is gray to black in color with small white inclusions. | |
Thin Section Description (,2) - Tim McCoy | |
This is an LL5 chondrite (Fa28, Fs23 with areas of shock-melt, which include rounded metal-sulfide blebs. The large shower of LL5 chondrites from QUE 97 exhibits a range of shock features and this may be an extreme in that range. |
Antarctic Meteorite Images for Sample QUE 97429 | ||||
Thin Section Photo(s) : | ||||
References for Sample QUE97429 | |
Welten, K. C., Caffee, M. W., Hillegonds, D. J., Mccoy, T. J., Masarik, J., Nishiizumi, K., 2011, Cosmogenic radionuclides in L5 and LL5 chondrites from Queen Alexandra Range, Antarctica: Identification of a large L/LL5 chondrite shower with a preatmospheric mass of approximately 50,000 kg. Meteoritics & Planetary Science, 46, 177-196, http://dx.doi.org/10.1111/j.1945-5100.2010.01142.x. |