On the origin of Luna 24 basalts and soilsAnalyses of fine-grained very low titanium (VLT) basalt from the Luna 24 drill core suggest that a single homogeneous magma is represented by the sample. In particular, the small variation in MgO contents of the fine-grained basalt, together with the tight clustering of the compositions of brown glasses (which may be pyroclastic equivalents of the VLT basalt), provides evidence for the single-magma hypothesis. The high-Mg component in the soil samples, though not obviously explainable in petrographic terms, may be derived from material similar to olivine vitrophyre and its degraded products, or from some other high-Mg VLT basalt.
Document ID
19790048514
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ryder, G. (California, University Davis, Calif., United States)
Marvin, U. B. (Harvard-Smithsonian Center for Astrophysics Cambridge, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Mare Crisium: The view from Luna 24; Conference