dive_core_no dive_no core_no depth_target shipfix_lat shipfix_lon subfix_lat subfix_lon month day year cruise_id depth_core CH4 d13C_CH4 DIC d13C_DIC sulfate 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 0 nd nd nd nd 26.76 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 1 2.14 -33.82 11.35 -11.05 21.21 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 3 2.27 -41.09 11.23 -6.72 13.19 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 5 2.40 -41.19 10.50 -5.58 5.06 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 7 2.19 -41.96 9.28 -6.09 1.49 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 9 2.64 -43.26 7.55 -5.32 -0.06 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 11 2.16 -41.90 7.78 -5.55 0.04 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 13 2.50 -41.80 6.14 -5.52 0.17 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 15 2.46 -42.46 5.18 -5.33 0.43 4491-12 4491 12 2005 27.0071 -111.4080 27.0071 -111.4082 12 15 2008 AT15-40 17 2.04 -42.31 4.91 -5.52 0.76