Size Siliciclastic and volcaniclastic composition Biogenic composition "Core, section, " Depth interval (cm) (mbsf) Described by Lithology (dominant/minor) Sand Silt Clay Quartz Feldspar Plagioclase Muscovite Biotite Glauconite Amphibole Pyroxene Rock fragments (sedimentary) Rock fragments (metamorphic) Rock fragments (basaltic) Volcanic glass Volcanic glass (brown) Volcanic glass (colorless) Accessory minerals Carbonate Calcite Dolomite Opaque (oxide) Opaque (sulfide) Fe oxides Clinoptilolite Phillipsite Other Clay Nannofossils Foraminifers Diatoms Radiolarians Sponge spicules Shell debris Organic material Fish debris Bioclasts Unidentified/Other Remarks 180-1115A- "1H-1, 10" 0.1 LAC D c r a r r c r a c r r c Bioclast-bearing nannofossil ooze "1H-3, 40" 1.9 LAC D c c a r r r r a c r c Nannofossil ooze "1H-4, 92" 3.92 AR M c a r c r r a c r Volcanic ash "1H-4, 95.5" 3.955 AR M a c r c r r a c r Glass-rich fine-grained sand "1H-4, 97.5" 3.975 LAC M a c r r a r r Volcanic ash "1H-4, 100.5" 4.005 LAC M c c r r r a r Volcanic ash "1H-4, 102" 4.02 TS M a c r r a c Volcanic ash "1H-4, 103" 4.03 TS M a c r r a a r Volcanic ash "1H-4, 105" 4.05 LAC M a a r r a r Volcanic ash "1H-CC, 3" 4.23 LAC D c c a r r c a c r r Nannofossil ooze "1H-CC, 10" 4.3 TS D c c c r r r r c a c r "Foraminifer-rich silty clay, nannofossil ooze" 180-1115B- "1H-1, 123" 1.23 TS D r c c r r r r c r r Nannofossil ooze "1H-3, 128" 4.28 AR M c a c r r r c r a r r Calcareous silt "1H-4, 18" 4.68 AR M c a c c r r a r r r Volcanic ash "2H-1, 10" 7.3 AR D c c a r r a r a a c c "Nannofossil ooze, silt bearing" "2H-1, 20" 7.4 AR M a c r r r r a r r Volcanic ash "2H-2, 10" 8.8 TS M c c r r r a r a r r r Volcanic ash "2H-3, 21" 10.41 AR M c a r r r r a r Volcanic ash "2H-4, 19" 11.89 TS M c c r r r a a r r Volcanic ash "2H-4, 22" 11.92 TS M a c r r r a r r r Volcanic ash "3H-1, 54" 17.24 AR D r c a r r r a a c r r Calcareous silty clay "4H-3, 48" 29.68 AR M r c a r r r r a a c r r Silty clay "4H-5, 54" 32.74 AR M c c a r r r r r c c r r Silt "4H-6, 54" 34.24 AR M c a c r r r c r r r r Silt with glass "4H-6, 55" 34.25 AR M a c r r r a r c r Volcanic ash "6H-7, 40" 54.6 AR M r a c r r a r a "Calcareous silt, glass rich" "7H-4, 51" 59.71 TS M r c a r r r r c a c r Nannofossil-rich silty clay "7H-6, 22.5" 62.425 AR M r a c r r r a r r r Glass-rich silt "8H-1, 59" 64.79 TS M r c a r r r r r c c r r Calcareous clay "8H-1, 79" 64.99 TS M c a r r r r c a c r Clay-rich nannofossil ooze "9H-4, 40" 78.6 AR M c c c r r r r r c c c r Foraminifer-bearing nannofossil-rich silty clay "10H-3, 66" 86.86 TS D r c c r r r c c a r r Nannofossil-rich silty clay "10H-4, 52" 88.22 AR M a c c r r c c Fine sand with glass "10H-4, 61" 88.31 AR M r c a c r a r r Volcanic ash "11H-5, 75" 99.45 TS D r c c r r r r r c c a c r Nannofossil-rich silty clay "12H-1, 124" 103.44 TS M r c c r r r a c Nannofossil-rich silty clay "12H-4, 83" 107.53 TS D c c c r r r c c a c r Nannofossil-rich silty clay "14H-3, 90" 125.1 TS D r c a r r r r c a r r Nannofossil-rich silty clay "15H-4, 70" 135.9 TS D r c a r r r r c a c r Nannofossil-rich silty clay "16H-4, 100" 145.7 AR D r c a r r r r a a r Nannofossil silty clay "17H-4, 62" 154.82 AR D r c a r r r r r a r r Nannofossil silty clay "17H-6, 42" 157.62 AR M c a r r r a r r r Volcanic ash "18H-2, 46" 161.16 AR M c c r r r r r r r r r Volcaniclastic silt "18H-4, 60" 164.3 AR D r a r r a a r Calcareous clay "19H-1, 65" 169.35 AR M c r a r r r c a a r Nannofossil clay "19H-5, 80" 175.5 AR D c r a r r r r a a c Nannofossil silty clay "19H-6, 115" 177.35 AR M c a r c r c a r r r Glass-rich volcaniclastic silt "20H-5, 20" 184.4 LAC M c r c r c r r r r r r Volcaniclastic sand "21H-3, 67" 191.37 LAC D r c a r r r r a r r r Silty clay "21H-5, 24" 193.94 LAC D c r c r r r r r a r Silty clay "22H-1, 77" 197.97 LAC M a r c r c r r r r a r a Volcaniclastic sand "22H-5, 67" 203.81 TS D r c a r r r r r r c a r r Nannofossil-rich silty clay "23H-1, 70" 207.4 TS D r c a r r r r r c a r r Calcareous Clay "23H-5, 10" 212.8 LAC M a c r r r r r a c r Volcaniclastic sand "24X-2, 40" 218.1 LAC D r c a r r r r r r a r r r Nannofossil-rich silty clay "24X-6, 105" 224.55 LAC M a r c r c c c c r c Volcaniclastic sand "25X-2, 67" 227.97 TS D r c a r r r r r r c a r r Nannofossil-rich silty clay "26X-1, 43" 235.83 TS D r c a r r r r r c c a r r Calcareous nannofossil-rich silty clay "26X-3, 109" 239.49 TS M r a c r r r a r c r Volcanic ash "26X-3, 112" 239.52 TS M a c r c a r r c r r Medium-grained volcaniclastic sandstone "26X-4, 36" 240.26 TS D r c c r r r r r c c a r r Calcareous nannofossil-rich silty clay "27X-1, 134" 246.34 TS M r c c r r r a r r c r Volcanic ash "27X-3, 80" 248.8 TS D r c c r r r r r c a r Nannofossil-rich calcareous silty clay "28X-1, 80" 255.4 TS D r c a r r r r r c c a r r Nannofossil-rich calcareous silty clay "29X-1, 26" 264.56 AR M c c a r r r r r a a r Volcaniclastic silty clay "31X-1, 70" 284.2 AR D r a c r r r r r r r a r Clay-rich silt "31X-6, 23" 291.23 AR M c a c r r r r c c r Volcaniclastic sandy silt 180-1115C- "2R-2, 75" 295.05 AR D r a c r r r r a a r r r Clay-rich silt "3R-1, 15" 302.65 AR D r c a r r r r r a a c r Silty clay "3R-2, 25" 304.25 AR D c a c r r r r r c c r r r Volcaniclastic silt "4R-2, 10" 313.71 AR D r a c r r c r a r r r Clay-rich silt "4R-2, 110" 314.71 AR D r c a r r r r r a c r r r Silty claystone "4R-3, 5" 315.16 AR M r a r r r r a c Volcanic ash "5R-1, 112" 322.82 AR D r c a r r r a a r Silty claystone "6R-2, 17" 333.07 TS M r a c r r r r a c r r Calcareous silt "6R-5, 112" 338.52 TS M r a c r r r r r a c r Calcareous siltstone "7R-2, 40" 342.86 TS D r c a r r r r r r c a r r Calcareous silty clay "8R-3, 83" 353.77 TS D r c a r r r r r r c a r r Calcareous silty clay "9R-2, 30" 361.39 TS D r c a r r r r r r c a r r Calcareous silty clay "9R-7, 7" 367.94 TS M r c c c c r a r c r Volcanic ash "10R-1, 47" 369.97 AR D r c a r r r r a a c r r r Silty clay "10R-2, 41" 371.41 TS D r c c r r r r r r c a c r Calcareous silty clay "11R-1, 80" 379.9 AR D r c a r r r r a a r r r Silty clay with nannofossils "11R-5, 70" 385.62 AR M c a c r c r a r r r r Volcanic ash "12R-5, 80" 395.2 AR D c a c c c r r r r r r Sandy silt "13R-2, 30" 399.9 AR D a c r r r r r a a r Clay-rich silt "15R-6, 65" 425.45 AR D a c r c c r r r c c r r c c Fine-grained sand "21R-1, 10" 476 AR M a c r c r c r r c a c Calcareous fine-grained sand "21R-CC, 18" 480.26 AR D a c r c r c r r r a c c Calcareous fine-grained sand "22R-1, 32" 484.82 TS D c c c c c r r r r r r Silty sandstone "22R-6, 42" 491.18 TS D c c r r c c r r c r r r Calcareous silty sandstone "23R-1, 23" 494.33 TS D r a r r r r r c r r r r Calcareous siltstone "24R-1, 57" 504.37 TS D a c r c c r r r r Fine-grained volcaniclastic sandstone "25R-1, 44" 513.84 TS M a c r c c r r r r r Fine- to medium-grained sandstone "25R-1, 74" 514.14 TS M c c c c c r r c c Fine-grained sandstone "25R-2, 40" 515.3 TS D c c r r r r c c r Fine-grained sandstone "25R-2, 100" 515.9 TS D a c r c c r c r r r r r r Medium-grained sandstone "25R-CC, 10" 516.29 TS M a c r c c r r r r Coarse-grained sandstone "27R-1, 30" 532.9 TS D c c c c c r r r r c Silty sandstone "28R-1, 60" 542.8 TS D a r c c c r c r r r r Medium-grained sandstone "29R-1, 14.5" 551.945 TS M a c r r c r a a r Fine- to medium-grained sandstone "29R-2, 14.5" 553.395 TS M c c c r r r a r r Fine-grained sandstone "34R-3, 33" 603.11 AR D a c r c r r r c r Volcaniclastic sand "37R-CC, 14" 628.94 LAC D c a r c c r r r c r r Sandy siltstone "39R-CC, 5" 648.15 LAC D c c r c c r r r r r r Silty sandstone "40R-4, 30" 662.6 TS D c c c c c c r r r r c c Silty sandstone "41R-4, 50" 672.36 TS D c c c c c r r r r c r r Sandy siltstone "42R-2, 20" 678.09 LAC M r a c c c r r c r Clayey siltstone "42R-4, 91" 681.8 LAC D c a r c c r r r r r c r Sandy siltstone "43R-2, 32" 688.62 TS D c c c c c r r r r r c a r Sandy siltstone "44R-2, 114" 698.72 LAC D c a r c c r r Calcareous sandy siltstone "44R-3, 30" 699.38 LAC D c a r c r r r r Calcareous sandy siltstone "45R-2, 65" 707.99 TS D r c c c c r r r r c c r Siltstone "47R-7, 40" 734.15 TS D r c c c c r r r c a Siltstone "49R-2, 20" 746.19 TS D r a c c c r r r r c c Siltstone "50R-4, 110" 759.09 TS D r c c r r r r r r c r r Siltstone "52R-4, 60" 778.25 TS D c c c c c r r r c c Sandy siltstone "52R-6, 10" 780.63 TS D r a c c c c r r r c c r Calcareous siltstone "53R-2, 40" 785.1 TS D r c c r r r r r c a r r Sandy siltstone "54R-3, 70" 795.94 TS D r a c c c c r r r c c r Calcareous siltstone Note: a = abundant (51%-100%); c = common (11%-50%); r = rare (1%-10%).