Figure F8. Scanning electron microscopy photographs of Site U1328 cold seep carbonate facies. A. General view (backscattered electron) showing the association of aragonite needles and small high-magnesium calcite (HMC) crystals (~13 mol% MgCO3) with knobbly surface (Sample 311-U1328B-6X-1, 0–20 cm). B. Secondary electron detail of A. C. Energy dispersive spectrometer (EDS) spectrum of HMC crystal (arrow in B). D. Small HMC crystals (~16 mol% MgCO3) with knobbly surface (Sample 311-U1328B-6X-1, 47-50 cm). E. Clusters of rounded dolomite grains with knobbly surface (Sample 311-U1328D-2X-2, 30-31 cm). F. EDS spectrum for sample in E.
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