Computer Science
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974gecoa..38.1461v&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 38, Issue 9, pp.1461-1484
Computer Science
30
Scientific paper
87 Sr/ 86 Sr measurements of 108 sedimentary carbonate rocks have been used to trace variations in the strontium isotopic composition of seawater during the Phanerozoic. The lowest 87 Sr/ 86 Sr observed for any suite of carbonates is taken as the best approximation to the value in well-mixed contemporary seawater. Our data support the existence of low 87 Sr/ 86 Sr in the Cretaceous and Late Jurassic but they do not support further structure beyond a general trend through the Phanerozoic, which may correlate with the continental denudation rate.
Compston William
Veizer Ján
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