Table 4. Table showing marine localities (coastal and deep-sea sediments) where anaerobic methane oxidation (AMO) is an important process.
Location | Maximum AMO rate (µmol cm-3 yr-1) |
Method | Depth to SMI (mbsf) |
Sulfate
depletion due to AMO (%) |
Lightest 13C-C02 (PDB) |
13C-organic
matter (PDB) |
Reference |
---|---|---|---|---|---|---|---|
Coastal Marine: |
|||||||
Amazon Shelf (OST-2) |
-- |
Model CH4 |
0.60-0.67 |
-- |
-29 (at SMI) |
-22 |
Blair and Aller (1995) |
Cape Lookout Bight (Coastal North Carolina) |
70-510 -- |
Labeled S*O4 |
-- 0.05 |
-- -- |
-- -10 to -15 (at SMI) |
-- -- |
Crill and Martens (1987) Blair et al. (1993) |
2.9 |
Labeled C*H4 |
-- |
-- |
-- |
-- |
Alperin et al. (1992) |
|
4.4-5.5 |
Labeled C*H4 |
0.05-0.12 |
-- |
-- |
-- |
Hoehler et al. (1994) |
|
-- |
-- |
-- |
-- |
-5 to -15 (at SMI) |
-19.2 ±0.2 |
Boehme et al. (1996) |
|
Kysing Fjord, Denmark |
0.017-0.102 |
Labeled C*H4 |
0.01-0.05 |
0.01-0.06 |
-- |
-- |
Iversen and Blackburn (1981) |
Jutland and Kuttegat, Denmark |
2.0-4.0 2-6.6 |
Labeled C* Labeled S*O4 |
0.2-1.3 |
10-17 |
-- |
-- |
Iversen and Jorgensen (1985) |
Long Island Sound |
0.65 |
Model CH4 |
0.15-0.80 |
-- |
-- |
-- |
Martens and Berner (1977) |
Skan Bay, Alaska |
1.8-3.4 |
Labeled C* |
0.18 |
5-20 |
-19 to -21 (at SMI) |
-21 |
Reeburgh (1980) |
3.65 |
Labeled C*H4 |
-- |
-- |
Alperin and Reeburgh (1984) |
|||
5-20 |
Labeled C*H4 |
-- |
-- |
Alperin et al. (1988) |
|||
29 |
Labeled C*H4 |
-- |
-- |
Alperin et al. (1992) |
|||
Saanich Inlet, Vancouver |
-- |
-- |
<0.15-0.30 |
-- |
-- |
-20 to -24 |
Brown et al. (1972) |
-- |
-- |
<0.10-0.85 |
-- |
-37.1 (near SMI) |
-- |
Nissenbaum et al. (1972) |
|
Model SO4 |
0.17-0.24 |
75 |
-- |
-- |
Murray et al. (1978) |
||
35-78 |
Labeled S*O4 |
0.17 |
30-70 |
-- |
-- |
Devol and Ahmed (1981) |
|
1.7-7 |
Labeled C*H4 |
-- |
-- |
-- |
-- |
Devol (1983) |
|
35-70 |
Labeled S*O4 |
-- |
-- |
||||
2.6-6.6 |
Labeled C*H4 |
0.12 |
23-40 |
-- |
-- |
Devol et al. (1984) |
|
17-52 |
Labeled S*O4 |
-- |
-- |
||||
30 |
Model CH4 |
-- |
-- |
||||
30 |
Model SO4 |
-- |
-- |
||||
Santa Barbara Basin |
0.232 (46 cm zone) |
Model |
0.90-2.1 |
-- |
-- |
-- |
Barnes and Goldberg (1976) |
0.128 (mean) |
Labeled acetate |
-- |
-- |
-- |
-- |
Kosiur and Warford (1979) |
|
Deep Sea: |
|||||||
Black Sea (BS5-10) |
(4.6-9.5) x 10-4 |
Labeled C*H4 |
Anoxic water column |
-- |
-- |
-- |
Reeburgh et al. (1991) |
-- |
-- |
-- |
-- |
-22 to -27 |
Fry et al. (1991) |
||
Cariaco Trench |
0.55-1.59 |
Model CH4 |
0.55-0.70 |
50 |
-- |
-- |
Reeburgh (1976) |
(10 cm zone) |
-- |
-- |
-- |
-- |
-19 to -21 |
Fry et al. (1991) |
|
Gulf of Mexico (DSDP Site 88) |
-- |
-- |
5-54 |
-- |
-30 (4 mbsf) |
-- |
Presley et al. (1973) |
Blake Ridge (DSDP Site 533) |
-- |
-- |
9.8-14.4 |
-- |
-31.4 (14 mbsf) |
-- |
Claypool and Threlkeld (1983) |
Blake Ridge (ODP Site 995) |
0.005 |
Model CH4 |
20 |
~33 |
-37.7 (20 mbsf) |
-21 (mean) |
This paper |
Norwegian Sea (ODP Site 644) |
-- |
-- |
6-22 |
-- |
-31.8 (22 mbsf) |
-- |
Vuletich et al. (1989) |
Sulu Basin (ODP Site 768) |
-- |
-- |
~172 |
-- |
-34 (172 mbsf) |
-- |
von Breymann et al. (1991) |
Nankai Trough (ODP Site 808) |
-- -- |
-- -- |
3-13.8 -- |
-- -- |
-29.8 (3 mbsf) -- |
-- -23 to -25 |
Gamo et al. (1993) Berner and Koch (1993) |
Offshore Namibia |
-- |
Flux calculation |
3.5-10 |
40-100 |
-- |
-- |
Niewohner et al. (1998) |
Note: * = radioisotopes. SMI = Sulfate/methane interface, PDB = Peedee belemnite standard. -- = not measured.