Isotope composition of dolomite, calcite and pore-waters of ODP Leg 210 samples, supplement to: Meister, Patrick; McKenzie, Judith A; Vasconcelos, Crisogono; Bernasconi, Stefano M; Frank, Martin; Gutjahr, Marcus; Schrag, Daniel P (2007): Dolomite formation in the dynamic deep biosphere: results from the Peru Margin. Sedimentology, 54(5), 1007-1032

Patrick Meister, Judith A McKenzie, Crisogono Vasconcelos, Stefano M Bernasconi, Martin Frank, Marcus Gutjahr & Daniel P Schrag
Early diagenetic dolomite beds were sampled during the Ocean Drilling Programme (ODP) Leg 201 at four reoccupied ODP Leg 112 sites on the Peru continental margin (Sites 1227/684, 1228/680, 1229/681 and 1230/685) and analysed for petrography, mineralogy, d13C, d18O and 87Sr/86Sr values. The results are compared with the chemistry, and d13C and 87Sr/86Sr values of the associated porewater. Petrographic relationships indicate that dolomite forms as a primary precipitate in porous diatom ooze and siliciclastic sediment...
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