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doi:10.2204/iodp.proc.338.201.2014 ResultsWe present weight percent sand, silt, and clay for all samples in Table T1. Complete data sheets and particle size distribution curves similar to Figures F4 and F5 are included in Microsoft Excel format in HYDROMETER in “Supplementary material.” We plot particle size distributions on a ternary diagram according to the classification of Shepard (1954) (Figs. F6, F7) and as a downcore profile of weight percent sand, silt, and clay against LWD gamma ray and resistivity (Fig. F8). The ternary classification defines two major lithologies (silty clay and clayey silt) and four minor lithologies (silt, sandy clay, sandy silt, and sand silt clay) (Fig. F7). Of the samples, 76% (37 of 49) are clayey silt, 16% (8) are silty clay, and 8% (4) are minor lithologies. Overall, clay content decreases downcore, and the coarsest samples occur at the bottom of the cored interval at Site C0021 (Fig. F8). No obvious particle size differences occur between MTD and non-MTD samples (Figs. F7, F8). However, samples from MTD-A plot within both the silty clay and clayey silt fields, whereas samples from MTD-B are exclusively in the clayey silt field. |
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