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Serpentinized abyssal peridotites sampled by the Ocean Drilling Program Leg 209 along the mid-Atlantic Ridge near the 15°20′N Fracture Zone have been analyzed for oxygen, hydrogen, and chlorine isotope compositions in order to determine isotopic behavior under a wide range of serpentinization conditions and place constraints on fluid history. Oxygen and hydrogen thermometry suggests peak serpentinization...
The paper documents Permian igneous rocks in the vicinity of an ocean–continent transition in the West Iberian Abyssal plain. ODP Leg 173, Hole 1067A was drilled through a sequence of foliated to massive amphibolites of gabbroic protolithic origin. The 270±3 Ma to 246±5 Ma rock sequence experienced several metamorphic events during the interval of time spanning from 138 Ma up to 55 Ma. Metamorphic...
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