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  
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    1           2.60   -39.54    10.47   -2.98     4.28     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    3           2.19   -39.09    12.57   -6.41     10.47    
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    5           3.92   -39.70    13.85   -5.41     3.39     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    7           2.78   -39.71    15.27   -4.32     1.22     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    9           nd     -39.09    10.10   -4.55     0.33     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    11          2.60   -39.88    9.81    -3.74     0.36     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    13          1.77   -40.07    8.46    -5.50     0.78     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    15          1.48   -39.70    6.95    -3.55     1.10     
4488-10       4488     10       2010          27.0077      -111.4085    27.0077     -111.4088   12     12   2008  AT15-40    17          nd     nd        5.93    -3.45     1.32