Strontium isotopic ratios of evaporites of the Tyrrhenian Sea, supplement to: Müller, Daniel W; Müller, Paul A; McKenzie, Judith A (1990): Strontium isotopic ratios as fluid tracers in Messinian evaporites of the Tyrrhenian Sea (western Mediterranean Sea). In: Kastens, KA; Mascle, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 107, 603-614

Daniel W Müller, Paul A Müller & Judith A McKenzie
Strontium isotopic ratios of gypsums recovered from upper Miocene (Messinian) evaporites at ODP Leg 107 Holes 652A, 653B, and 654A (Tyrrhenian Sea) are lower than expected. The values for the Messinian balatino-like gypsum, single gypsum crystals, and anhydrites range from 0.70861 to 0.70886 and are approximately 25 * 10**-5 less than would be expected for evaporites precipitated from Messinian seawater (0.70891-0.70902). Pre-evaporitic planktonic foraminifers from Hole 654A show variable degrees of dolomitization and 87Sr/86Sr values...
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