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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].