Other
Scientific paper
Oct 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974lssf.nasa..410v&link_type=abstract
"In its Lunar Soil from the Sea of Fertility (NASA-TT-F-15881) p 410-435 (SEE N75-11814 02-91) Transl. into ENGLISH from the bo
Other
Chronology, Geomorphology, Lunar Soil, Radioactive Isotopes, Lead Isotopes, Lunar Evolution, Lunar Maria, Lunar Surface, Lunik 16 Lunar Probe, Strontium Isotopes
Scientific paper
By averaging the absolute age of lunar regolith materials from the Sea of Fertility for the fine regolith fraction from the core zone V, an age of 4.65 10 to the 9th power + 0.4 10 to the 9th power years was obtained, employing as the primordial Sr-87/Sr-86 ratio 0.69884 (ADOR). Also close to this age value is the age estimate based on the Pb-207/Pb-206 ratio. Using the value 0.69898 (BABI) as a primordial Sr-87/Sr-86 ratio reduces the calculated age of the fine regolith fraction to 4.25 X 10 to the 9th power years. The fine fraction of lunar regolith from the Sea of Fertility is also characterized by a minimum addition of radiogenic Sr-87, a minimum Rb/Sr ratio, and a maximum K/Rb ratio compared with analogous lunar material from other points.
Artemov Y. M.
Vinogradov A. P.
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