Calcite composition and stable isotope record of ODP Hole 103-637A peridotites, supplement to: Evans, Cynthia A; Baltuck, Miriam (1988): Low-temperature alteration of peridotite, Hole 637A. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 235-239

Cynthia A Evans & Miriam Baltuck
The peridotite recovered from Ocean Drilling Program Hole 637A, Galicia margin, has suffered extensive low-temperature alteration that includes serpentinization, calcite veining, and calcite replacement. This note presents textural and geochemical data on the serpentine and calcite. Such data indicate that the serpentinization, serpentine veining, and calcite veining of the peridotite occurred in several stages late in the history of the peridotite emplacement, probably after the peridotite was emplaced at crustal levels. It is also apparent...
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