Table 1 Stratigraphy divisions and their OC contents.

From: Subsea permafrost organic carbon stocks are large and of dominantly low reactivity

Stratigraphy

Sedimentation

OC contents

Rates

1st quartile

Median

3rd quartile

Marine

30 cm/kyr (0.3 mm/a)

0.57 wt%

0.99 wt%

1.43 wt%

Terrestrial

10 cm/kyr (0.1 mm/a)

1.02 wt%

1.90 wt%

3.40 wt%

  1. Sedimentation rates are assumed as in4. OC contents are taken from43,53,60. Quartiles are defined using the distribution of observations shown in Supplementary Fig. S1a,b.