The isotopic composition of strontium and the age of stone meteorites--I

Details The isotopic composition of strontium and the age of stone meteorites--I The isotopic composition of strontium and the age of stone meteorites--I

Sep 1962

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962gecoa..26..927g&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 26, Issue 9, pp.927-943

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13

Scientific paper

New measurements of the Rb and Sr content and Sr isotope composition are reported for four Ca-rich achondrites and five bronzite or hypersthene chondrites. All the achondrites have identical 87 Sr / 86 Sr ratios; one chondrite, Beardsley, is very much enriched in Rb relative to the other chondrites. Several alternative interpretations of the data are discussed; all agree on a period of chemical differentiation 4.3 to 4.7 Aeons ago (Aeon = 10 9 yrs.) in the parent body of the meteorites.

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