TABLE 1

Sample locations and characteristicsa

SiteLocationSeafloor depth (m)Below seafloor depth (m)Depositional conditionsCl-based salinityTotal carbon (wt%)Total organic carbon (wt%)Concn
Methane (mM)Sulfate (mM)Formate (μM)Acetate (μM)Propionate (μM)Butyrate (μM)
59E Little Belt55°0.285′N, 10°6.499′E37.10.25Holocene marine23.306.405.400.251.613.950.960.17
15Holocene marine24.235.954.971.130.0710.3820.5440.43
67Glacial lacustrine7.482.170.911.760.010.7424.046.611.04
60B Kattegat56°37.204′N, 11°40.229′E31.224Marginal marine31.722.080.480.006.592.7311.854.190.42
37Marginal marine30.673.210.550.0014.452.7311.854.190.42
63E Landsort Deep58°37.330′N, 18°15.240′E437.111Holocene marine12.031.761.532.330.010.0037.383.030.2
47Glacial lacustrine1.670.700.559.400.020.3822.734.710.14
65C Børnholm Basin55°28.084′N, 15°28.624′E84.30.25Holocene marine1554.990.192.32.921.801.050
3Holocene marine15.524.163.6710.100.032.5534.903.660
10Holocene lacustrine/marine transition12.840.880.979.300.072.3219.502.010.12
30Glacial lacustrine2.782.480.480.800.220.0022.802.460.25
  • a Location data, depositional conditions, salinity, total carbon, total inorganic carbon, alkalinity, methane, and sulfate data were originally published as part of the IODP Expedition 347 post-cruise report and by Andrén et al. (38), except for data for sample M65C-0.25m, which was published by Beulig et al. (39). Formate, acetate, propionate, and butyrate concentrations were measured in this publication, as detailed in Materials and Methods.