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Figure F39. Mud and mudstone compositions, Site U1437, determined by inductively coupled plasma–atomic emission spectroscopy (ICP-AES) and portable X-ray fluorescence scanner (pXRF). End-member compositions (averages for Izu arc-front basalt–dominant island volcanoes, Izu arc-front rhyolite–dominant submarine calderas, Izu rear-arc lava, Ryukyu dacite, Chinese loess, and marine carbonate) are plotted together with a schematic mixing triangle. Data plotting outside the triangle can be mostly explained by simplifications in the end-member compositions. Mud data for fore-arc Site U1436 are plotted for comparison. Data sources: Scudder et al. (2009), Morse and Mackenzie (1990).

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