leg site hole core coretype section top interval bottom interval sample code inorganic carbon percent caco3 percent total carbon percent organic carbon percent nitrogen percent sulfer percent caco3 method bomb pressure bomb standard link comments latitude longitude depth top interval depth below sea floor top interval depth below sea floor 105 645 G 001 Hydraulic (Advanced) Piston Core 04 079 080 PP 039.0 Carbonate Bomb 07.2 38 70.45800 -64.65483 0005.32 611 612