Figure F40. X-ray diffraction (XRD) pattern for clay minerals separated from vesicles, Hole U1347A (Sample 324-U1347A-23R-5, 12–16 cm). The peak, ranging from 26°2θ to 28°2θ, corresponds to anorthite. The remaining peaks fit the XRD patterns for both saponite and nontronite. Based on thin section observations, clay mineral is most likely saponite.
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