Figure F5. X-ray diffractograms of selected lithologies from Site 1227. A. Black nodule consisting of fluorapatite (11.02 mbsf). B. Black silty sediment from lithologic Unit III (47.5 mbsf). C. Pinkish carbonate-rich layer in Unit III. D. Authigenic dolomite nodule from lithologic Unit IV. E. Barite nodule. G = Glauconite, Qz = quartz, Fs = feldspar, Ap = apatite, P = pyrite, Cc = calcite, Do = dolomite, Ba = barite.

Figure F5. X-ray diffractograms of selected lithologies from Site 1227. A. Black nodule consisting of fluorapatite (11.02 mbsf). B. Black silty sediment from lithologic Unit III (47.5 mbsf). C. Pinkish carbonate-rich layer in Unit III. D. Authigenic dolomite nodule from lithologic Unit IV. E. Barite nodule. G = Glauconite, Qz = quartz, Fs = feldspar, Ap = apatite, P = pyrite, Cc = calcite, Do = dolomite, Ba = barite.