Strontium Isotopes in Deep-Sea Sediments

See allHide authors and affiliations

Science  15 Jul 1966:
Vol. 153, Issue 3733, pp. 295-297
DOI: 10.1126/science.153.3733.295


Recent deep-sea sediments, leached of carbonate, have Sr87 Sr86 ratios ranging from 0.7044 to 0.7394. Strontium in the detrital sediment has not equilibrated isotopically with seawater strontium. Amounts of strontium-bearing authigenic material in the clay-mineral assemblage are not great enough to mask strontium-isotope ratios inherited from source areas.