Mathematics – Logic
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa..220s&link_type=abstract
"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 220-223 (SEE N75-11814 02-91) Transl. into ENGLISH from the bo
Mathematics
Logic
Chemical Composition, Lunar Maria, Lunar Rocks, Rare Earth Elements, Apollo 11 Flight, Apollo 12 Flight, Geochemistry, Lunar Surface, Mass Spectroscopy, X Ray Spectroscopy
Scientific paper
Methodological and analytical capabilities associated with spark mass spectrometry and X-ray spectroscopy are presented for the determination of the elemental composition of samples of lunar regolith returned to the earth by Apollo 11 and Apollo 12. Using X-ray spectroscopy, the main constituents of samples of lunar surface material were determined, and using mass spectrometry -- the main admixtures. The principal difference of Apollo 11 samples from Apollo 12 samples was found for elements contained in microconcentrations. This is especially true of rare earth elements.
Chupakhin M. S.
Shevaleyevskiy I. D.
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