Table 4. Core 1603. Oxygen isotopic data in mixed planktonic foram., ratio of N. pachyderma sin. to sum of N. pachyderma sin. and N. pachyderma dex, coefficient Td- relative frequence of the warm water diatom species according to Kanaya and Koizumi [1966], CaCO3 and Corg., sum of darkconifer, % grains Castanea and Castanopsis to grains sum of tree and shrub groups in sediments of core. Longitude-35o55.3'N. Latitude-130o43.4'E. Depth-1360m. Contributor- Gorbarenko S.A. sum Castaneu+ Depth d18O Pdext./Psin.+Pdext. Td CaCO3 Corg. darkconifer Castanopsis cm. o/oo % % % % % % 10 0.43 9.00 54 2.50 1.43 2.50 9.90 20 0.00 38 2.25 1.92 3.70 4.80 30 2.50 6.25 35 1.00 1.60 3.50 8.10 40 0.00 65 1.58 1.72 2.00 7.30 50 46.50 64 1.42 1.66 3.00 5.50 60 1.88 68 2.33 1.48 3.60 15.70 70 1.53 38.70 53 2.58 1.50 1.90 15.80 80 1.30 32.10 61 0.75 1.66 2.40 7.00 90 2.03 22.90 61 2.83 1.73 0.50 9.70 100 1.73 32.50 59 2.67 1.66 1.20 7.10 110 1.10 0.00 57 1.25 1.62 1.40 17.40 120 0.00 47 0.58 2.06 2.00 22.70 130 33 0.17 2.36 2.20 16.00 140 6.50 42 2.33 2.38 2.50 4.40 150 2.50 41 0.42 2.90 2.00 7.50 178 22 0.33 3.00 185 34 8.25 2.82 5.90 190 3.10 43 11.33 2.88 10.20 195 47 1.92 2.21 200 2.53 26 3.67 1.60 9.40 1.80 205 2.53 210 2.20 39 6.58 1.53 16.30 0.50 220 1.82 21 8.41 1.24 25.00 228 1.97 230 36 6.50 1.27 27.00 0.60 240 1.61 38 4.50 0.96 20.60 2.00 250 1.00 37 3.58 0.92 15.80 0.50 253 0.91 260 22 2.75 1.01 21.50 265 0.66 270 0.73 273 23 4.58 1.15 33.50 280 0.48 16 7.16 1.09 23.00 290 0.47 15 9.16 1.07 29.50 300 0.52 13 6.66 1.16 35.10 310 0.62 17 7.50 1.10 24.70 320 0.59 18 39.50 330 0.58 20 8.91 0.97 42.50