Japan Sea 30KYr Organic and Isotopic Geochemical Data ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: Japan Sea 30KYr Organic and Isotopic Geochemical Data LAST UPDATE: 10/2009 (Original receipt by WDC Paleo) CONTRIBUTOR: Ryoshi Ishiwatari, Tokyo Metropolitan University, now at Geotec Inc. IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2009-120 WDC PALEO CONTRIBUTION SERIES CITATION: Ishiwatari, R., et al. 2009. Japan Sea 30KYr Organic and Isotopic Geochemical Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2009-120. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Ishiwatari, R., K. Yamada, K. Matsumoto, M. Houtatsu, and H. Naraoka. 1999. Organic Molecular and Carbon Isotopic Records of the Japan Sea Over the Past 30 kyr. Paleoceanography, 14(2), 260–270. ABSTRACT: The organic and isotopic geochemical study of two sediment cores (KH-79-3, L-3, and KH-79-3, C-3) from the Oki Ridge in the Japan Sea has revealed that total organic carbon (TOC) mass accumulation rates are extremely high in the 12-11 ka (calendar age) interval and TOC in the sections in the 24-17 ka interval is depleted in 13C by 3.5 per mil relative to Holocene sediments. Alkenone sea surface temperature (SST) shows a decrease from 18° to 14°C from 17.5 to 11.6 ka and a sharp increase from 14° to 19°C from 11.6 to 11.1 ka. The SST changes are associated with the inflow of cold seawater with the vertical water mixing and the inflow of warm Tsushima Current into the Japan Sea. The d13C values for both 24-methylcholesta-5,22-dien-3B-ol (diatom marker) and dinosterol (dinoflagellate marker), are at their minimum from 24 to 17 ka, while those for long-chain alkenones are not. The theoretical considerations on d13C for biomarkers suggest low photosynthetic carbon demand of diatoms and dinoflagellates from 24 to 17 ka. GEOGRAPHIC REGION: Japan Sea PERIOD OF RECORD: 30 KYrBP - present FUNDING SOURCE: Japan Society for the Promotion of Science DESCRIPTION: Organic geochemistry and carbon isotope data from two cores in the Japan Sea interpreted as photosynthetic activity markers. Cores KH-79-3, L3 and KH-79-3, C3: 37º 03.5'N, 134º 42.6'E, 935 m water depth, Oki Ridge, Japan Sea DATA: 1. Table 1, Bulk Geochemical Data for Cores KH-79-3, L-3, and KH-79-3, C-3 Column 1: Depth, cm Column 2: Age, Calendar kyr BP, *a Column 3: Total Organic Carbon (TOC), mg/g, *b Column 4: C:N wt ratio Column 5: d13C of TOC, per mil, *b Column 6: Depth, cm Column 7: Age, Calendar kyr BP, *a Column 8: Total Organic Carbon (TOC), mg/g Column 9: C:N wt ratio Column 10: d13C of TOC, per mil Depth Age*a TOC*b C:N d13C-TOC Depth Age TOC C:N d13C-TOC 2.5 0.2 18.1 8.4 -21.34 135.0*c 11.7 - - - 7.5 0.7 18.3 8.3 -21.49 [112.0] 11.7 - - - 12.5 1.2 18.4 8.3 -21.55 137.5 12.2 10.7 8.2 -22.34 17.5 1.6 19.5 8.3 -21.52 [122.0] 12.8 8.9 8.0 -22.75 [11.5]*d 1.7 20.0 7.4 -21.01 142.5 13.0 9.0 7.8 -22.96 22.5 2.1 16.7 8.5 -21.43 145.0*c 13.2 - - - 27.5 2.6 21.1 8.6 -21.45 [124.0] 13.2 - - - 32.5 3.0 21.0 8.5 -21.50 147.5 13.9 7.9 8.0 -23.75 37.5 3.5 20.3 8.7 -21.57 152.5 15.4 7.3 8.8 -24.98 42.5 4.0 18.1 8.5 -21.59 [132.0] 15.4 10.6 6.8 -23.09 48.0 4.5 19.1 8.6 -21.45 157.5 16.8 11.0 8.8 -24.80 [31.5] 4.6 18.3 7.7 -21.12 160.0*c 17.5 - - -25.06 53.0 5.0 18.8 8.7 -21.43 [140.0] 17.5 - - - 57.5 5.4 18.8 8.5 -21.49 [142.0] 17.5 11.8 8.7 - 62.5 5.9 17.7 8.5 -21.57 162.5 18.0 10.5 9.1 -24.98 67.5 6.3 16.1 8.4 -21.53 167.5 18.9 10.3 9.2 -25.05 72.5 6.8 18.7 8.3 -21.59 180.0*c 20.5 - - - 77.5 7.3 17.5 8.4 -21.85 [153.0] 19.1 - - -24.38 78.0*e 7.3 - - - 181.0 21.3 83.0 8.8 20.2 8.5 -21.85 [172.5] 21.4 10.4 7.8 -24.18 90.0e 10.8 - - - [191.0] 23.6 9.7 7.6 -24.03 [71.0] 10.8 25.0 7.2 -21.23 199.0*c 24.3 - - - 97.0 10.9 24.6 8.6 -22.03 [198.0] 24.3 - - - 102.5 11.0 22.7 8.8 -22.04 201.5 24.5 12.0 8.9 -24.18 107.5 11.1 24.8 8.9 -22.87 208.0 25.2 9.5 8.3 -23.31 [88.5] 11.2 -22.23 212.0 25.7 7.6 8.1 -23.20 112.5 11.2 36.4 9.1 -22.77 [212.0] 26.3 - 6.5 -22.52 115.5*c 11.3 - - - 218.0 26.4 5.3 7.6 -23.75 [90.0] 11.3 - - - 224.0*e 27.7 - - - 117.5 11.3 23.1 8.7 -22.56 [224.0]*d,e 27.7 - - - 122.5 11.5 16.5 8.5 -22.22 [265.0]*c,d 31.7 - - - 127.5 11.6 13.2 8.3 -22.10 [270.0] 31.9 - - - 132.5 11.7 12.4 8.3 -22.12 [272.0] 32.0 15.4 7.9 -21.67 [110.5] 11.7 13.3 8.2 -22.15 [289.0]*c,d 32.3 - - - *a Calendar ages were calculated from radiocarbon ages by using the data set obtained for Lake Suigetsu [Kitagawa and van der Plicht, 1998]. *b Data for KH-79-3, L-3, are quoted from Yamada and Ishiwatari [1998]. *c Accelerator mass spectrometry (AMS) 14C age [Oba et al., 1995]. *d Brackets indicate Core KH-79-3, C-3 (quoted from Ishiwatari et al., [1994]). *d Volcanic ash layers: Akahoya (K-Ah), 7300 cal years B.P.; Ulreung-Oki (U-Oki), 10,750 cal years B.P. (H. Fukusawa et al., personal communication, 1998); and Aira Tanzawa (AT), 24.5 14C ka [Oba et al., 1995]. 2. Table 1A, Molecular and carbon isotopic data for cores KH-79-3, L-3 and KH-79-3, C-3. Column 1: Depth, cm Column 2: Age, Calendar kyr BP Column 3: Linear Sedimentation Rate, cm/ky Column 4: Dry Bulk Density, g/cm3 Column 5: Total Organic Carbon mass Accumulation Rate, mg/cm2/ky Column 6: Alkenones, ug/g *b Column 7: Alkenone SST, ºC, *c Column 8: Dinosterol, ug/g *b Column 9: C28 sterol, ug/g *d,*b Column 10: Phytol, ug/g *b Column 11: d13C of C37:2 alkenone, per mil Column 12: d13C of C38:2 alkenone, per mil Column 13: d13C of C28 sterol, per mil *d Column 14: d13C of dinosterol, per mil Depth Age LSR DBD TOC-MAR Alk. SST Dino C28 Phytol d13C37 d13C38 d13C28 d13Cdin 2.5 0.2 10.7 0.38 74 - - 1.84 4.14 4.27 -25.1 -24.8 - - 7.5 0.7 10.7 0.38 74 1.52 19.1 1.74 3.94 3.87 - -24.1 - - 12.5 1.2 10.7 0.40 79 - - 1.90 3.29 3.56 -21.3 -22.7 - - 17.5 1.6 10.7 0.40 84 - - 1.52 2.99 3.08 - - - - [11.5]*a 1.7 10.7 0.40 86 - - 3.53 5.16 2.05 - - -23.9 -23.2 22.5 2.1 10.7 0.36 64 1.93 18.4 1.21 2.11 2.72 - - - - 27.5 2.6 10.7 0.36 81 - - 1.54 2.79 3.42 - - - - 32.5 3.0 10.7 0.34 76 1.32 17.9 1.70 2.53 3.10 - - - - 37.5 3.5 10.7 0.34 74 - - 1.54 2.58 3.02 - - - - 42.5 4.0 10.7 0.36 70 - - 1.67 2.56 2.53 -23.5 -23.7 - - 48.0 4.5 10.7 0.36 74 2.08 18.3 2.03 3.69 2.31 - - - - [31.5] 4.6 10.7 0.36 71 - - 1.77 2.26 1.83 - - -23.1 -23.3 53.0 5.0 10.7 0.40 81 - - 1.70 2.76 2.75 - - - - 57.5 5.4 10.7 0.40 81 - - 1.61 3.09 2.75 - - - - 62.5 5.9 10.7 0.38 72 - - 1.43 2.32 2.63 - - - - 67.5 6.3 10.7 0.38 66 1.40 18.5 1.54 2.08 2.10 - - - - 72.5 6.8 10.7 0.38 76 - - 1.15 1.65 1.59 -23.0 -23.0 - - 77.5 7.3 10.7 0.38 71 - - 1.31 2.11 2.18 - - - - 83.0 8.8 3.7 0.44 33 1.67 18.1 1.73 3.24 3.66 -23.2 -23.5 - - [71.0] 10.8 3.7 0.44 40 - - 2.08 4.45 1.77 -25.2 97.0 10.9 46.4 0.46 525 - - 1.93 4.38 5.00 -23.7 -23.3 - -25.1 102.5 11.0 46.4 0.44 463 - - 2.56 5.12 5.68 - - - - 107.5 11.1 46.4 0.44 506 1.18 19.3 2.53 4.76 5.23 - - - - [88.5] 11.2 46.4 0.40 - - - 3.77 6.61 4.67 - - -26.1 - 112.5 11.2 46.4 0.40 675 - - 3.80 10.92 12.19 -23.9 -24.6 - -24.0 117.5 11.3 39.0 0.40 360 1.66 17.8 3.18 7.87 6.26 - - - - 122.5 11.5 39.0 0.82 528 0.76 15.8 1.77 3.65 2.78 - - - - 127.5 11.6 39.0 0.82 422 0.39 14.4 1.12 2.26 2.03 -25.9 -26.3 - - 132.5 11.7 39.0 0.82 397 0.32 14.9 0.76 1.27 1.45 -25.8 -25.8 - - [110.5 11.7 39.0 0.82 425 - - 0.81 1.54 1.30 - - -25.2 -24.5 137.5 12.2 6.7 0.72 51 0.37 16.0 0.82 1.37 1.12 -24.7 -25.4 - - [122.0 12.8 6.7 0.72 43 - - 0.68 0.91 0.67 - - -25.0 -24.2 142.5 13.0 6.7 0.72 43 - - 0.56 0.99 1.05 -24.8 -25.6 - - 147.5 13.9 6.7 0.72 38 - - 0.76 1.57 1.49 -24.6 -24.3 - - [132] 15.4 3.5 0.64 24 - - 0.26 0.35 0.82 - - -26.7 -26.2 152.5 15.4 3.5 0.64 16 0.10 17.2 1.42 4.25 5.74 -23.0 -24.0 - - 157.5 16.8 3.5 0.64 25 - - 0.86 3.21 5.49 -22.9 -23.5 - - [142.0 17.5 6.7 0.66 52 - - 0.95 2.39 3.61 - - -27.7 -28.2 162.5 18.0 6.7 0.66 46 0.12 18.6 0.93 3.69 5.96 -22.6 -23.2 - - 167.5 18.9 6.7 0.66 45 0.08 17.2 0.83 2.57 3.17 - - - - [153.0 19.1 6.7 0.66 - - - 0.46 1.77 2.49 - - -29.7 -28.8 [172.5 21.4 5.0 0.66 34 - - 0.39 1.13 1.19 - - -25.4 -24.8 [191.0 23.6 5.0 0.66 32 - - 0.32 0.75 1.53 - - -28.5 -28.1 201.5 24.5 9.3 0.58 65 0.79 2.72 2.02 - - - - 208.0 25.2 9.3 0.54 48 0.06 - 0.41 1.15 0.67 - - - - 212.0 25.7 9.3 0.54 38 - - 0.24 0.60 0.52 - - - - [212.0 26.3 9.3 0.54 - - - 0.49 0.87 0.30 - - -26.0 -26.0 218.0 26.4 8.6 0.54 25 - - 0.06 0.11 0.16 - - - - [272.0 32.0 14.1 0.54 117 - - 0.67 1.30 0.61 - - -26.0 -25.0 *a core KH-79-3, C-3 [ ] core KH-79-3, C-3 *b Dry sediment *c Sea Surface Temperature *d 24-methylcholesta-5,22-dien-3b-ol