Chemical Composition of the Lunar Surface in Sinus Medii

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Science  23 Jan 1970:
Vol. 167, Issue 3917, pp. 376-379
DOI: 10.1126/science.167.3917.376


More precise and comprehensive analytical results for lunar material in Sinus Medii have been derived from the alpha-scattering experiment on Surveyor VI. The amounts of the principal constituents at this mare are approximately the same as those of constituents at Mare Tranquillitatis. The sodium contents of both maria are lower than those of terrestrial basalts. The titanium content at Sinus Medii is lower than that at Mare Tranquillitatis; this suggests important differences in detailed chemical composition at different mare areas on the moon.

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