site             lat      lon       Core  Depth_cm  Initial_pH  Alkalinity_mM  Sulfate_mM  DIC_mM  Fe_uM    NH4_uM  Sulfide_uM  DOC_uM  
Spidercrab Bay   37.344   -75.798   SP2-3  0.5       6.75        2.44           23.58       3.20    322.49   62.93   3.89        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  2         6.89        2.61           23.25       3.51    447.45   103.60  3.40        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  3         6.97        3.88           24.08       4.76    324.44   140.25  3.89        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  4         7.02        2.75           23.94       3.80    384.18   122.92  3.64        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  6         7.2         2.93           23.87       3.44    137.08   114.61  3.64        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  8         7.16        3.45           23.25       4.04    121.52   137.54  4.25        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  9         7.15        3.21           23.95       3.80    143.23   117.83  4.13        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  10        7.35        3.57           23.78       4.16    128.10   128.70  4.25        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  12        7.14        3.92           23.93       4.63    204.37   155.25  3.40        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  15        7.31        3.61           23.88       4.10    105.90   179.10  3.28        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  19        7.46        3.19           23.88       3.55    28.32    86.29   5.22        ns      
Spidercrab Bay   37.344   -75.798   SP2-3  20        7.33        4.01           22.71       4.56    80.65    124.75  4.98        ns