Table 1 Modern seep carbonate geochemical data

From: Methane seep carbonates yield clumped isotope signatures out of equilibrium with formation temperatures

Sample	Phases	Modern	δ¹³C_carb	stdv	δ¹⁸O_carb	s.d.	Δ₄₇	Δ₄₇	s.e.	s.d.	n
		Temp (°C)	(‰,VPDB)	(‰)	(‰,VPDB)	(‰)	(‰, ARF)	(‰, ARF)	(‰)	(‰)
							AFF 0.000	AFF 0.092
Hydrate Ridge
Depth: 690 m; position: 44.6722°N, 125.1219°W
2282-1c	Micrite	5	−52.07	0.010	5.10	0.024		0.632	0.013		1
2282-3	Micrite	5	−28.83	0.008	7.76	0.0215		0.666	0.0130		1
Depth: 630 m; position: 44.6694°N, 125.0480°W
2284-1	Micrite	5	−47.57	0.008	6.27	0.013		0.661	0.012	0.028	2
2284-10	Micrite	5	−52.00	0.007	5.08	0.014		0.679	0.011		1
2284-2	Micrite	5	−46.98	0.005	5.28	0.009		0.663	0.012	0.034	2
2284-3	Micrite	5	−46.25	0.005	6.36	0.0149		0.643	0.0100		1
2284-4	Micrite	5	−48.07	0.007	4.95	0.011		0.649	0.014		1
2284-5	Micrite	5	−40.48	0.006	6.70	0.0191		0.672	0.0090		1
2284-6	Micrite	5	−54.64	0.005	5.16	0.016		0.659	0.013	0.039	2
2284-7	Micrite	5	−49.76	0.004	5.00	0.009		0.647	0.021	0.032	2
2284-8	Micrite	5	−3.02	0.001	4.44	0.0081		0.647	0.0294		1
2284-9	Micrite	5	−31.97	0.006	3.11	0.0121		0.636	0.0047		1
Depth: 800 m; position: 44.57°N, 125.15°W
CS-1-B D1	Micrite	5	−49.53	0.003	4.35	0.007		0.662	0.010		1
CS-1-B D2	Micrite	5	−49.38	0.002	4.28	0.005		0.660	0.005		1
CS-1-B L2	Micrite	5	−35.26	0.003	4.34	0.007		0.620	0.009		1
CS-1-B-L1	Micrite	5	−37.92	0.002	4.38	0.009		0.663	0.006		1
cs-1-c d1	Micrite	5	−47.83	0.002	4.36	0.005		0.629	0.007		1
CS-1-C L1	Micrite	5	−35.81	0.004	4.51	0.004		0.650	0.013		1
CS-1-C L2	Micrite	5	−34.97	0.007	4.28	0.012		0.644	0.010		1
HR-4635 3364-L-1	Micrite	5	−42.16	0.006	4.26	0.016		0.652	0.021		1
CS-1-C A1	Fibrous cement	5	−44.63	0.003	4.41	0.007		0.667	0.007		1
CS-1-C A2	Fibrous cement	5	−44.36	0.003	4.32	0.007		0.638	0.013		1
CS-1-C-A3	Fibrous cement	5	−39.42	0.005	4.45	0.018		0.663	0.011		1
HR-4635 3364-A-1	Fibrous cement	5	−41.52	0.002	4.37	0.005		0.666	0.012		1
Eel River Basin
Depth: 520 m; position: 40.812°N, 124.612°W
ERB-4256-G4-A	Clotted micrite	5	13.97	0.005	7.34	0.016		0.740	0.010		1
ERB-4256-G4-B	Clotted micrite	5	15.95	0.005	7.26	0.013		0.706	0.008		1
Costa Rica
Depth: 1,000 m; position: 8.93°N, 84.30°W
CR-4501-L1-CM1	Clotted micrite	5	−49.86	0.003	3.76	0.013		0.639	0.011		1
CR-4501-L1 CM 2	Clotted micrite	5	−47.84	0.004	4.07	0.004		0.657	0.016		1
CR-4502-S3 MC 1	Micrite clast	5	−45.98	0.002	4.06	0.004		0.677	0.009		1
CR 4502-L2-MC2	Micrite clast	5	−39.00	0.002	4.10	0.007		0.649	0.009		1
Norwegian Sea
Depth: 750 m; position: 64.67°N, 5.29°E
H03 (90C)	Clotted micrite	1	−50.82	0.005	4.72	0.012		0.705	0.032		1
H03 (25C)	Clotted micrite	1	−50.97	0.004	5.42	0.009	0.744		0.021	0.051	2
H04 (90C)	Clotted micrite	1	−52.01	0.002	4.98	0.006		0.733	0.023		1
H04 (25C)	Clotted micrite	1	−51.57	0.881	5.24	0.395	0.783		0.017	0.018	2

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Table 1 Modern seep carbonate geochemical data

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