leg site hole core section top interval depth (cm) bottom interval depth (cm) top of core depth (m) sample depth (m) percent total carbon percent organic carbon percent calcium carbonate (CaCO3) method code data source code 87 583 1 1 50.0 50.0 0.00 0.50 0.0 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 2 3 67.0 67.0 5.50 9.17 0.0 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 2 6 34.0 34.0 5.50 13.34 16.7 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 3 2 51.0 51.0 15.00 17.01 1.1 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 7 2 51.0 51.0 45.90 47.91 2.2 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 8 3 105.0 105.0 55.40 59.45 2.2 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 9 1 112.0 112.0 62.50 63.62 10.0 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 14 1 71.0 71.0 92.00 92.71 2.8 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 17 1 51.0 51.0 107.00 107.83 0.0 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 20 1 51.0 51.0 122.00 122.51 2.8 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 21 1 51.0 51.0 126.00 126.51 1.7 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD 87 583 23 2 51.0 51.0 135.00 137.01 3.5 CARBONATE BOMB (CaCO3 only) DSDP SHIPBOARD