Fig. 6

Detected BSRs. a Map of BSR-derived heat flow in the Tokai area. BSRs were detected within the locations marked by the two black circles. Colored dots indicate heat flow values derived from the BSRs. b Seismic reflection image at the prism toe, where BSRs were found, shown with blue triangles. A P-wave velocity obtained from Site C0002 of the IODP Expeditions (Expedition 314 Scientists 2009) is used for time-to-depth conversion. c Seismic reflection image at the trough floor, where BSRs were found, shown with blue triangles. A P-wave velocity obtained from Site C0002 of the IODP Expeditions (Expedition 314 Scientists 2009) is used for time-to-depth conversion