Mineral Chemistry of Lunar Samples
- 30 January 1970
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 167 (3918) , 597-599
- https://doi.org/10.1126/science.167.3918.597
Abstract
Glass spherules, glass fragments, augite, ferroaugite, titanaugite, pyroxmangite, pigeonite, hypersthene, plagioclase, potassium feldspar, maskelynite, olivine, silica, ilmenite, TiO 2 , "ferropseudobrookite," spinel, ulvöspinel, native iron, nickel-iron, troilite, and chlorapatite were analyzed with the electron microprobe. There are no indications of large-scale chemical differentiation, chemical weathering, or hydrous minerals. Contributions of meteoritic material to lunar surface rocks are small. Rocks with igneous textures originated from a melt that crystallized at or near the surface, and oxygen fugacities have been low. Shock features indicate that at least some surface material is impact-produced.Keywords
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