Table 1 Gross and net oxygen production

From: Mesophilic microorganisms build terrestrial mats analogous to Precambrian microbial jungles

Single sources and sinks

Net O2 production (mmol m−2 d−2)

Method

1D model

23

1

O2 flux atmosphere + rock

8.4

2,3

CH4 flux atmosphere + OM production

24

4,5

Single sources and sinks

Gross O2 production (mmol m−2 d−2)

Method

1D model net O2 production + respiration

38

1,6

O2 flux atmosphere + rock + respiration

23

2,3,6

CH4 flux to atmosphere + OM production + respiration

39

4,5,6

  1. 1, 1D transport reaction based on daytime greenhouse profile; 2, flux determination from daytime greenhouse profile; 3, flux determination of in situ profile; 4, in situ mat accretion; 5, headspace analysis in dark mat incubation; 6, 1D transport reaction modelling based on night time greenhouse profiles, see also Supplementary Fig. 4
  2. OM organic matter
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