MINERALOGY AND CHEMISTRY OF THE KYLE,TEXAS, CHONDRITE |
| |
| Authors: | R V Fodor Klaus Keil E Jarosewich G I Huss |
| |
| Abstract: | The Kyle, Texas, U.S.A., chondrite was identified in 1965. Electron microprobe analyses and microscopic examination show the following mineralogy: olivine (Fa 26.2 mole %), orthopyroxene (Fs 21.0 mole %), clinopyroxene, plagioclase (An 10.3 mole %), chlorapatite, whitlockite, kamacite, taenite, troilite, chromite, and an iron-bearing terrestrial weathering product. Eutectic intergrowths of metaltroilite and a brecciated matrix indicate that the Kyle chondrite was shocked. Recrystallization and shock have obliterated chondrule-matrix boundaries. A chemical analysis of the meteorite shows the following results (in weight %): Fe 0.38, Ni 1.22, Co 0.05, FeS 5.98, SiO2 38.41, TiO2 0.11, Al2O3 2.13, Cr2O3 0.55, Fe2O3 8.02, FeO 14.83, MnO 0.31, MgO 23.10, CaO 1.60, Na2O 0.74, K2O 0.08, P2O5 0.19, H2O+ 1.73, H2O? 0.37, C 0.03, Sum 99.83. On the basis of bulk chemistry, composition of olivine and orthopyroxene, and the recrystallized matrix, the Kyle meteorite is classified as an L6 chondrite. |
| |
| Keywords: | |
|
|
