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Figure F3. Downhole variations of carbonates in sediment and authigenic carbonate samples, Site U1326. Lith. = lithologic, SED = standard sediment, CARB = semi-indurated to indurated authigenic carbonate sediment, BGHSZ = bottom gas hydrate stability zone. The carbonate weight percent shipboard value of Sample 311-U1326C-1H-2, 65–80 cm (2.15 mbsf), was plotted with authigenic carbonate samples because unlithified to partly lithified carbonates were observed onboard between 0.97 and 2.15 mbsf.

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