Results 91 to 100 of about 274 (137)
Physicochemical Controls on the Compositions of the Earth and Planets. [PDF]
Space Sci RevSossi PA +4 more
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A petrological and geochemical analysis of lunar basaltic fines 12070,891 and 12030,187
, 2014 Joy, K. H. +4 more
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The lunar magma ocean: Reconciling the solidification process with lunar petrology and geochronology
Earth and Planetary Science Letters, 2011 Abstract The Moon is thought to have originated with a magma ocean that produced a plagioclase flotation crust as solidification proceeded. Ages of anorthositic crust range over at least 200 million years. The model for solidification presented here integrates chemical and physical constraints of lunar magma ocean solidification to determine (1) the ...
Linda T Elkins-Tanton, Qing-zhu Yin
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The lunar regolith: Chemistry, mineralogy, and petrology
Reviews of Geophysics, 1982The lunar regolith, a several meter thick layer of unconsolidated debris, forms the interface between the moon and its space environment. The regolith forms from lithic sources by the destructional processes of comminution and the constructional processes of agglutinate formation. In this manner a steady state soil can develop and will remain in a type
J J Papike, Steven B Simon, J C Laul
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Petrology of the lunar soil and geophysical implications
Journal of Geophysical Research, 1970The Apollo 11 soil sample consists of particles derived from two rock suites, basaltic and anorthositic. Crystalline, glassy, and brecciated forms of each rock type are present. The basaltic suite (95% of identifiable soil particles) must be representative of mare rock; the anorthosites appear to derive from the lunar highlands.
John A Wood
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Reviews of Geophysics, 1975
The moon is covered with a thin layer of unconsolidated debris called the lunar regolith. A typical sample of this regolith could be characterized as a gray, poorly sorted pebble‐ or cobble‐bearing silty sand having a bulk density of about 1.5 g/cm³. It consists of lithic and mineral fragments mostly from the local underlying bedrock and glass formed ...
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The moon is covered with a thin layer of unconsolidated debris called the lunar regolith. A typical sample of this regolith could be characterized as a gray, poorly sorted pebble‐ or cobble‐bearing silty sand having a bulk density of about 1.5 g/cm³. It consists of lithic and mineral fragments mostly from the local underlying bedrock and glass formed ...
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Mineralogy, petrology, and geochemistry of the lunar samples
Reviews of Geophysics, 1975The years 1971–1974 mark the maturing of lunar mineralogy, petrology, and geochemistry into a full‐fledged science. During these years the prime objective of lunar sample investigation teams changed from general surveys of the nature of returned lunar material into problem‐oriented studies. Four general areas of interest that evolved during these years
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Petrology of Lunar Rocks and Implication to Lunar Evolution
Annual Review of Earth and Planetary Sciences, 1976Recent advances in lunar petrology, based on studies of lunar rock samples available through the Apollo program, are reviewed. Samples of bedrock from both maria and terra have been collected where micrometeorite impact penetrated the regolith and brought bedrock to the surface, but no in situ cores have been taken. Lunar petrogenesis and lunar thermal
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Petrology, mineralogy, and genesis of lunar crystalline igneous rocks
Journal of Geophysical Research, 1970Information on the mineralogy and petrology of the Apollo 11 crystalline basaltic rocks, obtained by about 35 groups of investigators, is summarized and used as a basis for speculation. The textural assemblage indicates near-surface, rapid crystallization from low-viscosity basaltic magmas under low oxygen pressures.
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