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Fig. 12 | Progress in Earth and Planetary Science

Fig. 12

From: Three-dimensional mapping and kinematic characterization of mass transport deposits along the outer Kumano Basin and Nankai accretionary wedge, southwest Japan

Fig. 12

Kumano Basin sedimentation through time. a Map showing the primary sediment inputs to the Kumano Basin. Solid lines show present-day pathways; dashed lines show possible older pathways. Note the bathymetric high to the NE of the 3D seismic volume that prevents modern sedimentation near IODP site C0002. Red dots are IODP drill sites. White box shows the location of isopach maps. bf Isopach maps of Kumano Basin stratigraphic sequences. Sequence Kumano 1 is the youngest sequence; Kumano 5 is the oldest. White dots show the thickest point of the basin during each isopach interval. Identified MTDs that occur within each sequence are shown for reference. The pattern of deposition changes once the SW uplift appears during the Kumano 4 sequence. Additionally, a lack of sedimentation at the headwalls during Kumano sequences 3–1 helps to explain the reduction in the size of MTDs 5–7 and the surficial MTDs. Because their relative timing cannot be determined from the data, MTDs 6 and 7 are shown in both the Kumano 3 and 2 maps and the surficial MTDs are shown both in the Kumano 2 and Kumano 1 maps (df). SS—surficial slide. Modified from Moore et al. (2015)

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