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  
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    0           nd     nd        nd      nd        26.92    
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    1           2.21   -41.55    nd      nd        19.93    
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    3           2.85   -41.29    nd      nd        8.44     
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    5           3.40   -40.54    nd      nd        4.34     
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    7           3.92   -39.50    nd      nd        5.41     
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    9           3.06   -40.43    nd      nd        9.08     
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    11          2.56   -42.36    nd      nd        11.80    
4484-3        4484     3        2004          27.0065      -111.4093    none        none        12     07   2008  AT15-40    13          2.77   -42.36    nd      nd        14.21