Co-Authors:
Graber, E.R., Dept. of Geological Sciences, University of Michigan, Ann Arbor, MI 48109, USA.
Lohmann, K.C., Dept. of Geological Sciences, University of Michigan, Ann Arbor, MI 48109, USA.
Abstract:
Deep-water lithologic associations, absence of hypersaline and freshwater indicators, elevated Na and Sr contents, and marine-derived delta 18O values all indicate that the dolomite precipitated from marine-derived water during burial beneath the sediment-water interface. Depletion of sulfate was not a prerequisite for dolomitization of basinal carbonates of the Horquilla Formation. Rather, dolomitization was promoted by the metastability of the precursor mineralogy. -from Authors
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