Gabbros from Mare Crisium: An analysis of the Luna 24 soil

Autor:	A. E. Bence, Timothy L. Grove, T. Scambos
Rok vydání:	1977
Předmět:	Basalt Igneous rock Geophysics Lithic fragment Gabbro Lava Lunar mare Geochemistry General Earth and Planetary Sciences Lunar soil Geology Mare Crisium
Zdroj:	Geophysical Research Letters. 4:493-496
ISSN:	0094-8276
DOI:	10.1029/gl004i010p00493
Popis:	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.
Databáze:	OpenAIRE
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