Figure F143. Downhole variation of vein types from Table T7 plotted with running averages of lithology for the lower 1000 m of Hole U1309D. Dark lines are locations of identified fault zones. Magmatic veins are concentrated toward the top of the section (including the top 400 m cored during Expedition 304). Clay veins are concentrated in gabbroic rocks intercalated with olivine-rich troctolites, especially below 1100 mbsf.
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