Figure F35. Changes in chemical composition of the borehole fluid. A. Preferred basement fluid composition normalized to composition of Site 1256 ocean bottom seawater. B. Composition of the uppermost basement fluid, estimated from sediment pore water profile measured during Leg 206 (Wilson, Teagle, Acton, et al., 2003), normalized to composition of Site 1256 ocean bottom seawater. C. Preferred basement fluid composition normalized to chemistry of the uppermost basement fluid.
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