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 25 248 2 2 95.0 95.0 1.00 3.45 2.6 0.3 19.3 LECO ACID-BASE ANALYZER (total and/or organic) DSDP SHORE LABORATORY 25 248 4 1 6.0 6.0 121.00 121.56 2.7 0.4 19.1 LECO ACID-BASE ANALYZER (total and/or organic) DSDP SHORE LABORATORY 25 248 10 2 130.0 130.0 312.00 314.80 0.1 0.2 0.0 LECO ACID-BASE ANALYZER (total and/or organic) DSDP SHORE LABORATORY 25 248 11 1 142.0 142.0 360.00 361.42 0.2 0.3 0.0 LECO ACID-BASE ANALYZER (total and/or organic) DSDP SHORE LABORATORY