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Olsen, E.

Publications and source records attributed to Olsen, E..

44 records · Page 3
All sourcesNASA NTRSDOE OSTI
NASA NTRS1973

Ortho- and clinopyroxene compositions in ordinary chondrites and related blander model calculation procedures

Chemical analyses of the orthopyroxene and clinopyroxene compositions in chondrites are reported. Standard microprobe techniques to 15 kilovolts, 0.03 microamperes, and 40 second counting time were employed. Duplicate analyses were conducted on three grains of each opx and cpx together with two different raw data correction methods as checks on analytical precision and correction procedures. Only those analytical summations of between 99.20 and 100.80 weight percent, and cation summations between 3.980 and 4.020 (based on 6 oxygens) were used.

Bunch, T. E.↗
NASA NTRS1971

Chondrules - First occurrence in an iron meteorite.

Findings of a chondrule in an inclusion from the octahedrite Netschaevo reported by Bunch et al. (1970) are confirmed and the presence of additional chondrules in the meteorite is reported. The bulk chemical composition, mineralogy, and mineral chemistry indicate that the chondritic material has properties intermediate between those of the H-group chondrites and those of the enstatite chondrites.

Olsen, E.↗