Table T3. Summary of average isotopic composition of pore water ammonium and Norg for Sites 1234, 1235 (ODP Leg 202), and 1230 (ODP Leg 201).

Table T3. Summary of average isotopic composition of pore water ammonium and N_org for Sites 1234, 1235 (ODP Leg 202), and 1230 (ODP Leg 201).


	Site* 1230	Site 1234	Site 1235
Average C/N (atomic)	9.5 ± 0.4	9.8 ± 1.1^†	10.09 ± 1.1^†
Average ¹⁵N of N_org	5.7 ± 0.9	9.8 ± 0.2	9.0 ± 0.2
Average ¹⁵N of ammonium	5.0 ± 0.1	9.4 ± 0.1	8.8 ± 0.1
Apparent fractionation factor,	–0.7 ± 0.2	–0.4 ± 0.3	–0.2 ± 0.3

Notes: * = data for Site 1230 (ODP Leg 201) are from Prokopenko et al. (2006b). † = corrected for adsorbed ammonium.