Computer Science
Scientific paper
Mar 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975metic..10...67m&link_type=abstract
Meteoritics, vol. 10, Mar. 30, 1975, p. 67-74.
Computer Science
Chondrites, Meteoritic Composition, Meteoritic Microstructures, Iowa, Iron Oxides, Kamacite, Olivine, Petrography, Pyroxenes
Scientific paper
A meteorite, named for the location of its discovery near Lone Tree, Iowa, was found by Loren Westfall in May 1971. Electron microprobe and petrographic studies reveal its mineral composition to be olivine, low-calcium clinopyroxene, high-calcium clinopyroxene, troilite, kamacite, taenite and iron oxides. On the basis of texture, olivine composition (19% Fa), low-calcium clinopyroxene composition (17% Fs, 2% Wo) and metal (determined by modal analysis), this meteorite is classified as an H group bronzite chondrite. While it has characteristics of classes 3 and 4, it fits class 4 better since low-calcium pyroxene has a mean deviation of 5.6%, olivine has a mean deviation of 3.2%, turbid glass is present in chondrules, feldspar is absent, and the matrix is opaque.
Carman J. H.
McCormick G. R.
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