Figure F3. X-ray diffraction patterns of selected samples from Site U1317 and U1318 cores. (A), (B), and (D) are from unconsolidated samples and (C) is from a lithified section of the core. All samples are from the Miocene (submound) part of the section. Note that carbonate is dominant over detrital quartz in all cases but C. Sediments in the Porcupine Basin cores range from dominantly siliciclastic to dominantly carbonate on a meter scale. Qtz = quartz, Cal = calcite, Dol = dolomite.
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