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 10 87 1 2 19.0 19.0 648.00 649.69 1.4 0.2 9.8 LECO ACID-BASE ANALYZER (total and/or organic) DSDP SHORE LABORATORY