Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) COULBOURN W. T.,"Sedimentologic summary, Nankai Trough sites 582 and 583, and Japan Trench site 584",Initial Report of DSDP,,US Government Printing Office,1986,87,,909-926,https://cir.nii.ac.jp/crid/1570291225629212800,