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Table 1 Sample site description

From: Metagenomic and geochemical characterization of pockmarked sediments overlaying the Troll petroleum reservoir in the North Sea

Parameter unit OF1 OF2 Tplain Tpm1-1 Tpm1-2 Tpm2 Tpm3
Position Latitude (N)- longitude (E) 59.594333- 10.633267 59.623800-10.626483 60.631117- 3.787293 60.63132- 3.789782 60.631441- 3.790041 60.630721- 3.78115 60.629635- 3.782211
Water depth m 212 200 305 315 315 311 311
Sediment depth cm bsf 5-20 5-20 5-20 5-20 5-20 5-20 5-15
Sediment type   Silty clay Silty clay Silty clay Silty clay Silty clay Silty clay Silty clay
NH3 mM 0.3821 0.2464 0.0021 0.0399 0.0387 0.0667 0.0907
NO3 + NO2 mM 0.0004 0.0004 0.0106 0.0011 0.0019 0.0031 0.0045
TOC % 1.39 1.46 1.08 0.54 0.64 0.7 0.67
HCO3-C mM 38.25 32.00 10.33 12.08 10.33 16.17 9.60
Cu mM 0.01 0.01 0.07 0.03 0.06 0.02 0.15
Sum C10-C36 μg/kg 587 368 1276 4993 2840 4547 4289
  1. The table shows the sampling location and an overview of the chemical data obtained by the Norwegian Geotechnical Institute in the Petrogen project[25].