Petrology of Apollo 11 regolith breccias

Details Petrology of Apollo 11 regolith breccias Petrology of Apollo 11 regolith breccias

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984lpsc...15..108s&link_type=abstract

(Lunar and Planetary Institute, NASA, American Geophysical Union, et al., Lunar and Planetary Science Conference, 15th, Houston,

Physics

3

Basalt, Breccia, Lunar Composition, Lunar Soil, Petrology, Regolith, Apollo 11 Flight, Glass, Olivine, Pyroxenes

Scientific paper

Petrographic and mineral chemical data for 16 Apollo 11 regolith breccias show that: (1) the regolith breccias differ from soil 10084 with respect to agglutinate content, glass population, plagioclase compositions, and proportions of high-K mare and low-K mare basalt components; (2) the A-11 breccias and soil have highland components that are similar both in abundance and petrology; and (3) lunar regolith breccias provide a better comparison with howardites than do lunar soils. The data and observations are consistent with formation of the regolith breccias from immature soil. It appears that little or no highland material has been added to the Tranquillitatis regolith since the formation of the breccias.

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