Other
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa..311s&link_type=abstract
"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 311-319 (SEE N75-11814 02-91) Transl. into ENGLISH from the bo
Other
Cosmic Gases, Gamma Rays, Lunar Soil, Radioactive Isotopes, Aluminum, Chemical Composition, Lunar Maria, Lunar Surface, Lunik 16 Lunar Probe, Manganese, Potassium, Sodium, Thorium, Uranium
Scientific paper
Using a scintillation gamma spectrometer with shielding against anticoincidences, the content of the natural radioelements (K, U, and Th) and long-lived cosmogenic radioisotopes (Al-26, Na-22, and Mn-54) in a sample of Sea of Fertility regolith was determined. Based on the content data of natural radioelements, an attempt was made to classify this sample in the scale of petrochemical types of terrestrial rocks arranged in accordance with their silicic content and alkalinity. Within the frame of reference of calcium-uranium systematics of lunar samples, a comparison was made of the K/U ratio obtained for the Sea of Fertility sample with analogous data for other regions of the moon. Also discussed are problems on the depthwise distribution of cosmogenic radioisotopes along the regolith profile.
Bachina L. P.
Fedoseyev G. A.
Nazarkina G. B.
Sobornov O. P.
Surkov Yu A.
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