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Jerome, D. Y.

Publications and source records attributed to Jerome, D. Y..

4 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS1972

The Washougal meteorite.

Optical study of the Washougal (Wash.), howardite, and determination of the ranges of composition of plagioclase and pyroxenes from measurements of densities and indices of refraction. Notable among many unique xenoliths are a round object whose morphology is that of an armored chondrule; a stratified fragment; and a centimeter-sized dunite xenolith (olivine Fa sub 12.8). The abundances of 27 elements, including all major elements and 15 trace elements are reported. To a first approximation, the composition of Washougal corresponds to a mixture of 51 wt per cent of eucritic material and 49 per cent of a diogenitic component, but excesses of some elements suggest a minor component of chondritic composition.

Jerome, D. Y.↗
NASA NTRS1971

A re-examination of relationships among pyroxene-plagioclase achondrites.

In light of the new data of Jerome (1970), a brief discussion of genetic relationships between eucrites, howardites and diogenites is presented. Howardites are not direct products of magmatic crystallization, as has sometimes been postulated, but instead are interpreted as polymict breccias resulting from the mechanical mixture of eucrites and diogenites. Testing of this model by means of chemical arguments is made complicated however by the probable presence of a chondritic component in howardites and by a sequence analogous to terrestrial differentiation series, among the eucrites themselves.

Jerome, D. Y.↗