Uranium and Thorium activity data in sediment cores in the North Atlantic Ocean (NERC Grant NE/M004619/1)

Activity (dpm/g) of Uranium and thorium isotopes from 3 sediment cores in the North Atlantic: ODP980, ODP983, EW9302-2JPC. Ocean Drilling Program (ODP) Site 980 was drilled in July 1995 in the North Atlantic Ocean, on the Feni Drift, off the eastern edge of the Rockall Plateau at 55.49°N, 14.70°W. Hole 980A Position: 55°29.087'N, 14°42.134'W. Hole 980B Position: 55°29.094'N, 14°42.137'W. ODP Site 983 was drilled was drilled in July 1995 and is located on the Bjorn Drift in approximately 1650 m water depth on the eastern flank of the Reykjanes Ridge. Hole 983A Position: 60°24.200'N, 23°38.437'W. Site EW9302-2JPC, an ODP Site Survey in 1993, of Rockall Plateau and East Flank of Reykjanes Ridge from the Flemish Cap in the south- eastern Labrador Sea (Figure 1). EW9302-2JPC Position: 4847.700 N, 4505.090 W, taken at water depth 1251m.

北太平洋海域三处沉积岩心（ODP980、ODP983、EW9302-2JPC）中铀和钍同位素活动度（单位：dpm/g）数据集：海洋钻探计划（ODP）第980号站位于1995年7月在北太平洋海域的菲尼漂移带，位于洛克阿德高原东部边缘，具体位置为北纬55.49°、西经14.70°。980A孔位坐标为北纬55°29.087'、西经14°42.134'；980B孔位坐标为北纬55°29.094'、西经14°42.137'。ODP第983号站位同样于1995年7月钻探，位于比约恩漂移带，水深约1650米，位于雷克雅内斯脊的东部斜坡。983A孔位坐标为北纬60°24.200'、西经23°38.437'。EW9302-2JPC站位为1993年的ODP站点调查，调查区域为洛克阿德高原和雷克雅内斯脊东部斜坡，自东南拉布拉多海的法尔默斯角（见图1）。EW9302-2JPC站位坐标为北纬4847.700'、西经4505.090'，水深1251米。