Table 3.

Oxygen isotope ratios of water and dissolved inorganic phosphate liberated during microbial degradation of organophosphorus compounds (RNA) at 20 to 35°C

T, °C	δ18Ow	δ18Op	103 lnα
20	−6.3	13.4	19.63
25	−6.5	12.7	19.14
25	−6.1	13	19.03
30	−6.2	12.2	18.35
35	−6.2	11.5	17.65
35	−6.6	10.8	17.36
35	−5.5	11.7	17.15
25	−8	11.6	19.57
35	−0.5	16.7	17.06

Data plotted in Fig. 3.