An Areal Assessment of Subseafloor Carbon Cycling in Cold Seeps and Hydrate-Bearing Areas in the Northern South China Sea

Table 2

Areal comparison of biogeochemical rates and effluxes of methane and DIC with other cold seeps.

Location	CH4 efflux	DIC efflux	OSR	ME	AOM	CP	Reference
Northern SCS	5.7	46.2	16.5	3.4	39.9	13.7	This study
Hydrate Ridge	839.5	9000		51.83	6575		[60, 68, 69]
Gulf of Mexico	109.5				1718		[73]
Costa Rica	4562.5				5880		[59]
Black Sea	3017				11363		[61]
Blake Ridge			2.92	0.365	10.6		[37]
Sakhalin Island (Derugin Basin)			59.9	11.9	33.2	11	[37]
Skagerrak (Denmark)	36.5				62		[70]
Hikurangi Margin (New Zealand)	4380	5548	2.5	1.5	333		[53, 58]
Ulleung Basin			23	53.8	40	6.3	[71, 72]
Vestnesa Ridge			12.8		184.8		[74]