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Strontium-isotope stratigraphy (SIS) is a means of dating and correlating marine sediments through measurement of the 87Sr/86Sr ratio in well-preserved marine minerals contained within them. The method can also determine the duration of hiatuses, distinguish marine from non-marine environments, and provide some control of the correctness of age models derived by independent means for sedimentary sections. This chapter provides an introduction to the use of SIS and gives examples to illustrate such uses.

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