Gabbros from Mare Crisium - an analysis of the Luna 24 soil

Details Gabbros from Mare Crisium - an analysis of the Luna 24 soil Gabbros from Mare Crisium - an analysis of the Luna 24 soil

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977georl...4..493b&link_type=abstract

Geophysical Research Letters, vol. 4, Oct. 1977, p. 493-496.

Physics

3

Gabbro, Igneous Rocks, Lunar Maria, Lunar Soil, Mineralogy, Chemical Composition, Crystallization, Iron, Lunar Rocks, Lunik Lunar Probes

Scientific paper

Monomineralic and lithic fragments from the Luna 24 drill core are samples of a mare ferrogabbro and a rarer gabbro of possible highlands origin. Mineral-phase chemistries of the mare ferrogabbro suggest the crystallization near the lunar surface of an evolved Fe-rich (Fe/Fe+Mg = 0.68 to 0.70) multiply saturated liquid. This low-Ti liquid, also represented in the core by basalt and brown-glass fragments, crystallized at the Mare Crisium site as a lava flow or intrusive and underwent little differentiation at the cooling site.

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