Citation:

ngeo2543

Name: Deep-Ocean dissolved organic matter in hydrothermal vents
Published: 2015
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Oceanic dissolved organic carbon (DOC) is an important carbon pool, similar in magnitude to atmospheric CO2, but the fate of its oldest forms is not well understood (Dittmar and Stubbins, 2014; Hansell, 2013, doi:10.1146/annurev-marine-120710-100757). Hot hydrothermal circulation may facilitate the degradation of otherwise un-reactive dissolved organic matter, playing an important role in the long-term global carbon cycle. The oldest, most recalcitrant forms of DOC, which make up most of oceanic DOC, can be recovered by solid-phase extraction. Here we present measurements of solid-phase extractable DOC from samples collected between 2009 and 2013 at seven vent sites in the Atlantic, Pacific and Southern oceans, along with magnesium concentrations, a conservative tracer of water circulation through hydrothermal systems. We find that magnesium and solid-phase extractable DOC concentrations are correlated, suggesting that solid-phase extractable DOC is almost entirely lost from solution through mineralization or deposition during circulation through hydrothermal vents with fluid temperatures of 212-401 °C. In laboratory experiments, where we heated samples to 380 °C for four days, we found a similar removal efficiency. We conclude that thermal degradation alone can account for the loss of solid-phase extractable DOC in natural hydrothermal systems, and that its maximum lifetime is constrained by the timescale of hydrothermal cycling, at about 40 million years (Elderfield and Schultz, 1996, doi:10.1146/annurev.earth.24.1.191).

Related to:

Vent site DOC summary

Coverage:

Median Latitude: 10.880999 * Median Longitude: -75.845948 * South-bound Latitude: -56.088930 * West-bound Longitude: 130.763330 * North-bound Latitude: 48.000000 * East-bound Longitude: -30.188980

Date/Time Start: 2001-07-21T00:13:00 * Date/Time End: 2011-07-31T05:22:00

Minimum Elevation: -3034.0 m * Maximum Elevation: -800.0 m

Event(s):

AMK47-Lost_City * Latitude: 30.125000 * Longitude: -42.117000 * Elevation: -800.0 m * Location: Lost City Hydrothermal Field, Mid-Atlantic Ridge * Campaign: * Basis: Akademik Mstislav Keldysh * Method/Device: MIR deep-sea manned submersible (MIR)

J2-574 * Latitude: 47.900000 * Longitude: -129.000000 * Date/Time: 2001-07-21T00:13:00 * Elevation: -2192.0 m * Campaign: * Basis: * Method/Device: Remote operated vehicle Jason II (ROVJ)

J2-575 * Latitude: 47.900000 * Longitude: -129.000000 * Date/Time: 2011-07-21T16:23:00 * Elevation: -2203.0 m * Campaign: * Basis: * Method/Device: Remote operated vehicle Jason II (ROVJ)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Hawkes, Jeffrey A
2	Latitude of event	Latitude		Hawkes, Jeffrey A
3	Longitude of event	Longitude		Hawkes, Jeffrey A
4	Identification	ID		Hawkes, Jeffrey A
5	Ocean and sea region	OS region		Hawkes, Jeffrey A
6	Site	Site		Hawkes, Jeffrey A	vent
7	Name	Name		Hawkes, Jeffrey A	vent
8	Sampling date	Sampling date		Hawkes, Jeffrey A	year
9	Sample type	Samp type		Hawkes, Jeffrey A
10	Type	Type		Hawkes, Jeffrey A	flow
11	Lithology/composition/facies	Lithology		Hawkes, Jeffrey A
12	Description	Description		Hawkes, Jeffrey A	geochemistry
13	Magnesium	Mg	mmol/l	Hawkes, Jeffrey A
14	Carbon, organic, dissolved	DOC	µmol/l	Hawkes, Jeffrey A
15	Precision	Precis		Hawkes, Jeffrey A	DOC [µmol/l]
16	Solid phase extractable	SPE	µmol/l	Hawkes, Jeffrey A
17	Precision	Precis		Hawkes, Jeffrey A	SPE [µmol/l]
18	Sample volume	Samp vol	ml	Hawkes, Jeffrey A
19	Volume	Vol	ml	Hawkes, Jeffrey A	extracted
20	Factor	Factor		Hawkes, Jeffrey A	Extract dilution factor for SPEDOC analysis
21	Carbon, organic, dissolved, extracted	DOC extr	µmol/l	Hawkes, Jeffrey A	SPEDOC in extract
22	Error	Error		Hawkes, Jeffrey A	SPEDOC in extract
23	Carbon, organic, dissolved, extracted	DOC extr	µmol/l	Hawkes, Jeffrey A	Procedural SPEDOC extract blank
24	Precision	Precis		Hawkes, Jeffrey A	Extract Blank precision
25	Error	Error		Hawkes, Jeffrey A	Extract blank error [µmol/l]
26	Carbon, organic, dissolved, extracted	DOC extr	µmol/l	Hawkes, Jeffrey A	SPEDOC extract blank subtracted
27	Error	Error		Hawkes, Jeffrey A	Extract error [µmol/l]
28	Carbon, organic, dissolved, extracted	DOC extr	µmol/l	Hawkes, Jeffrey A	SPEDOC
29	Error	Error		Hawkes, Jeffrey A	SPEDOC error
30	Percentage	Perc	%	Hawkes, Jeffrey A
31	Contamination	Contamination		Hawkes, Jeffrey A
32	Comment	Comment		Hawkes, Jeffrey A	Bulk DOC quality control
33	Comment 2 (continued)	Comm 2		Hawkes, Jeffrey A	Reason for omission from paper

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

4130 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 ID	5 OS region	6 Site (vent)	7 Name (vent)	8 Sampling date (year)	9 Samp type	10 Type (flow)	11 Lithology	12 Description (geochemistry)	13 Mg [mmol/l]	14 DOC [µmol/l]	15 Precis (DOC [µmol/l])	16 SPE [µmol/l]	17 Precis (SPE [µmol/l])	18 Samp vol [ml]	19 Vol [ml] (extracted)	20 Factor (Extract dilution factor for S...)	21 DOC extr [µmol/l] (SPEDOC in extract)	22 Error (SPEDOC in extract)	23 DOC extr [µmol/l] (Procedural SPEDOC extract blank)	24 Precis (Extract Blank precision)	25 Error (Extract blank error [µmol/l])	26 DOC extr [µmol/l] (SPEDOC extract blank subtracted)	27 Error (Extract error [µmol/l])	28 DOC extr [µmol/l] (SPEDOC)	29 Error (SPEDOC error)	30 Perc [%]	31 Contamination	32 Comment (Bulk DOC quality control)	33 Comm 2 (Reason for omission from paper)
J2-574	47.9000	-129.0000	J2-574B18	Pacific	Endeavour	Bambi	2011	Bag	Diffuse	Basalt	no seds, low H2	46.80	336.3	0.036	59.2	0.046	136.6	6.00	9.435500000	558.2151829	18.52693366	130.54	0.241	31.48	427.67	36.53	18.78	1.60	8.9	contaminated	Fail	pinhole leak in sample bag
J2-574	47.9000	-129.0000	J2-574BF17	Pacific	Endeavour	Bambi	2011	Bag	Diffuse	Basalt	no seds, low H2	48.70	144.2	0.036	25.4	0.046	27.1	6.00	9.549180723	242.6753433	18.74713914	130.54	0.241	31.48	112.13	36.64	24.83	8.11	33.7	no	Fail	NA
J2-574	47.9000	-129.0000	J2-574P2	Pacific	Endeavour	Bambi	2011	Ti Piston	Focussed	Basalt	no seds, low H2	8.50	141.8	0.036	26.6	0.046	170.0	6.00	10.262454550	273.4232151	20.14689586	130.54	0.241	31.48	142.88	37.37	5.04	1.32	14.2	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576PF1	Pacific	Endeavour	Bambi	2011	Ti Piston	Focussed	Basalt	no seds, low H2	20.20	149.7	0.036	46.9	0.046	97.8	6.00	10.022670890	469.7802800	19.67602435	190.37	0.241	45.91	279.41	49.94	17.15	3.06	7.9	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576P2	Pacific	Endeavour	Bambi	2011	Ti Piston	Focussed	Basalt	no seds, low H2	3.90	271.4	0.036	22.1	0.046	137.2	6.00	10.141025640	223.6223433	19.90929759	190.37	0.241	45.91	33.26	50.04	1.45	2.19	8.1	no	Fail	NA
J2-574	47.9000	-129.0000	J2-574P4	Pacific	Endeavour	Godzilla	2011	Ti Piston	Focussed	Basalt	no seds, low H2	5.00	87.9	0.036																no	Fail	NA
J2-574	47.9000	-129.0000	J2-574BF19	Pacific	Endeavour	Godzilla	2011	Bag	Focussed	Basalt	no seds, low H2	2.00	126.0	0.036	23.8	0.046	102.3	6.00	10.002645570	237.7274831	19.63481249	130.54	0.241	31.48	107.18	37.10	6.29	2.18	22.9	no	Fail	leak in bag seam from overfilling
J2-575	47.9000	-129.0000	J2-575B20	Pacific	Endeavour	dudley Black Smoker	2011	Bag	Focussed	Basalt	no seds, low H2	2.80	146.2	0.036	16.0	0.046	64.3	6.00	10.120743590	161.6328676	19.87889666	130.54	0.241	31.48	31.09	37.23	0.00	3.47	9.0	no	Fail	NA
J2-575	47.9000	-129.0000	J2-575BF19	Pacific	Endeavour	dudley Black Smoker	2011	Bag	Focussed	Basalt	no seds, low H2	2.50	124.5	0.036	22.4	0.046	72.0	6.00	10.515026670	235.0323692	20.64911559	190.37	0.241	45.91	44.67	50.34	3.72	4.19	15.3	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576B18	Pacific	Endeavour	Park Place	2011	Bag	Diffuse	Basalt	no seds, low H2	48.40	176.8	0.036	63.8	0.046	115.9	6.00	10.110602560	644.6277083	19.85096819	190.37	0.241	45.91	454.26	50.01	23.52	2.59	16.8	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576BF19	Pacific	Endeavour	Park Place	2011	Bag	Diffuse	Basalt	no seds, low H2	49.60	128.1	0.036	30.4	0.046	44.8	6.00	9.755666667	297.0333535	19.15114638	130.54	0.241	31.48	166.49	36.85	22.32	4.93	37.4	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576P6	Pacific	Endeavour	Park Place	2011	PVC Piston	Diffuse	Basalt	no seds, low H2	47.00	1025.6	0.036	117.3	0.046	267.3	6.00	9.775197531	1146.8119440	19.19261797	130.54	0.241	31.48	1016.27	36.87	22.82	0.83	1.8	no	Fail	extreme outlier from other samples at similar Mg
J2-576	47.9000	-129.0000	J2-576PF3	Pacific	Endeavour	Park Place	2011	Ti Piston	Focussed	Basalt	no seds, low H2	5.80	225.2	0.036	37.2	0.046	266.4	6.00	9.655987805	359.3505912	18.95725112	190.37	0.241	45.91	168.98	49.67	3.81	1.12	9.8	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576P4	Pacific	Endeavour	Park Place	2011	Ti Piston	Focussed	Basalt	no seds, low H2	2.90	464.0	0.036	61.3	0.046	58.0	6.00	9.646341463	591.3149472	18.94145772	190.37	0.241	45.91	400.95	49.66	41.48	5.14	5.0	contaminated	Fail	extreme outlier (SPEDOC) from other samples at similar Mg
J2-576	47.9000	-129.0000	J2-576P8	Pacific	Endeavour	Baltic Smoker	2011	PVC Piston	Focussed	Basalt	no seds, low H2	27.40	148.3	0.036	30.9	0.046	91.5	6.00	9.530120482	294.3378396	18.71458201	130.54	0.241	31.48	163.79	36.62	10.74	2.40	15.6	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576PF7	Pacific	Endeavour	Baltic Smoker	2011	PVC Piston	Focussed	Basalt	no seds, low H2	13.50	251.7	0.036	25.7	0.046	101.2	6.00	9.416666667	241.8595035	18.48315662	130.54	0.241	31.48	111.31	36.50	6.60	2.16	4.6	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576PF9	Pacific	Endeavour	Fairy Castle	2011	PVC Piston	Focussed	Basalt	no seds, low H2	9.30	167.8	0.036	48.9	0.046	208.9	6.00	9.646341463	471.4571160	18.93944470	130.54	0.241	31.48	340.91	36.74	9.79	1.06	11.0	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576PF5	Pacific	Endeavour	Fairy Castle	2011	PVC Piston	Focussed	Basalt	no seds, low H2	9.30	282.1	0.036	62.1	0.046	284.4	6.00	9.520590361	591.0330846	18.69660346	130.54	0.241	31.48	460.49	36.61	9.71	0.77	0.9	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576BF17	Pacific	Endeavour	Top of Ventner	2011	Bag	Focussed	Basalt	no seds, low H2	3.10	144.3	0.036	25.3	0.046	95.5	6.00	9.755666667	246.7962430	19.15191432	190.37	0.241	45.91	56.43	49.74	3.55	3.13	9.2	no	Fail	NA
J2-576	47.9000	-129.0000	J2-576B24	Pacific	Endeavour	Boardwalk	2011	Bag	Focussed	Basalt	no seds, low H2	5.80	156.1	0.036	20.8	0.046	33.3	6.00	9.520590361	197.6961137	18.68639199	190.37	0.241	45.91	7.33	49.56	0.00	8.93	45.8	no	Fail	NA
J2-579	47.9000	-129.0000	J2-579B18	Pacific	Endeavour	Hulk Smoker	2011	Bag	Focussed	Basalt	no seds, low H2	2.00	14.8	0.036	11.8	0.046	85.9	6.00	9.982620253	118.0176416	19.59219304	130.54	0.241	31.48	-12.53	37.08	0.00	2.59	77.0	no	Pass	NA
J2-579	47.9000	-129.0000	J2-579PF1	Pacific	Endeavour	Hulk Smoker	2011	Ti Piston	Focussed	Basalt	no seds, low H2	4.00	27.5	0.036	28.3	0.046	340.0	6.00	10.252181820	290.4597121	20.13130103	130.54	0.241	31.48	159.91	37.37	2.82	0.66	26.5	no	Pass	NA
J2-579	47.9000	-129.0000	J2-579P2	Pacific	Endeavour	Hulk Smoker	2011	Ti Piston	Focussed	Basalt	no seds, low H2	1.70	13.2	0.036	22.9	0.046	327.3	6.00	10.110602560	231.1254012	19.85589848	130.54	0.241	31.48	100.58	37.22	1.84	0.68	75.0	no	Pass	NA
J2-579	47.9000	-129.0000	J2-579P6	Pacific	Endeavour	Hulk Smoker	2011	PVC Piston	Focussed	Basalt	no seds, low H2	2.80	223.8	0.036	37.1	0.046	385.1	6.00	10.366263160	384.3859463	20.35572712	190.37	0.241	45.91	194.02	50.22	3.02	0.78	6.7	contaminated	Pass	Mass spectrometric analysis of organics highly quenched by contaminants
J2-579	47.9000	-129.0000	J2-579PF3	Pacific	Endeavour	Crypto Smoker	2011	Ti Piston	Focussed	Basalt	no seds, low H2	11.20	19.5	0.036	44.6	0.046	249.3	6.00	9.992632911	445.7777585	19.61583564	190.37	0.241	45.91	255.41	49.92	6.15	1.20	23.1	no	Pass	NA
J2-579	47.9000	-129.0000	J2-579P4	Pacific	Endeavour	Crypto Smoker	2011	Ti Piston	Focussed	Basalt	no seds, low H2	11.90	18.3	0.036	51.2	0.046	306.1	6.00	10.262454550	525.9385319	20.15168940	190.37	0.241	45.91	335.57	50.13	6.58	0.98	65.0	no	Pass	NA
J2-579	47.9000	-129.0000	J2-579B20	Pacific	Endeavour	Crypto Smoker	2011	Bag	Focussed	Basalt	no seds, low H2	7.30	21.6	0.036	20.2	0.046	83.5	6.00	10.428710530	211.0367638	20.47698632	190.37	0.241	45.91	20.67	50.27	1.49	3.61	59.3	no	Pass	NA
J2-574	47.9000	-129.0000	J2-574P8	Pacific	Endeavour	Background seawater	2011	PVC Piston	Background	Basalt	no seds, low H2	52.40	138.6	0.036	117.9	0.046	287.4	6.00	9.636695122	1136.0675720	18.92297688	190.37	0.241	45.91	945.70	49.65	19.74	1.04	21.9	no	Pass	NA
J2-575	47.9000	-129.0000	J2-575BF17	Pacific	Endeavour	Background seawater	2011	Bag	Background	Basalt	no seds, low H2	52.20	113.8	0.036	40.4	0.046	49.1	6.00	10.002645570	403.8949378	19.64025128	190.37	0.241	45.91	213.53	49.93	26.09	6.10	24.3	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580Major Red	Pacific	Axial Volcano	Inferno	2011	Major	Focussed	Basalt	no seds, low H2	3.70	57.6	0.036	33.0	0.046	331.8	6.00	10.141025640	334.4863326	19.90769222	190.37	0.241	45.91	144.12	50.04	2.61	0.90	17.5	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580P1	Pacific	Axial Volcano	Virgin	2011	Ti Piston	Focussed	Basalt	no seds, low H2	3.00	32.2	0.036	20.2	0.046	83.8	6.00	9.775197531	197.0010714	19.19054358	190.37	0.241	45.91	6.63	49.76	0.00	3.56	42.2	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580B24	Pacific	Axial Volcano	Marshmallow	2011	Bag	Diffuse	Basalt	no seds, low H2	42.70	98.0	0.036	16.2	0.046	12.7	6.00	10.151166670	164.3575481	0.00000000									no	Pass	Sample volume too low for SPE analysis
J2-580	47.9000	-129.0000	J2-580PF7	Pacific	Axial Volcano	Marshmallow	2011	PVC Piston	Diffuse	Basalt	no seds, low H2	43.00	607.3	0.036	105.8	0.046	241.0	6.00	10.293272730	1088.5584240	20.21027871	190.37	0.241	45.91	898.19	50.16	22.36	1.25	4.9	no	Pass	extreme outlier from other samples at similar Mg
J2-580	47.9000	-129.0000	J2-580P6	Pacific	Axial Volcano	Fuzzy Worm	2011	PVC Piston	Diffuse	Basalt	no seds, low H2	49.10	138.8	0.036	35.1	0.046	38.7	6.00	10.272727270	360.5665267	20.17271157	190.37	0.241	45.91	170.20	50.14	26.39	7.77	39.8	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580BF17	Pacific	Axial Volcano	Fuzzy Worm	2011	Bag	Diffuse	Basalt	no seds, low H2	48.60	100.2	0.036	79.6	0.046	127.4	6.00	10.002645570	796.2727265	19.64136913	190.37	0.241	45.91	605.91	49.93	28.54	2.35	5.0	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580PF5	Pacific	Axial Volcano	Anemone	2011	PVC Piston	Diffuse	Basalt	no seds, low H2	51.20	173.3	0.036	91.4	0.046	184.7	6.00	10.141025640	926.5673531	19.91310779	190.37	0.241	45.91	736.20	50.04	23.92	1.63	18.8	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580B18	Pacific	Axial Volcano	Anemone	2011	Bag	Diffuse	Basalt	no seds, low H2	50.00	189.3	0.036	28.8	0.046	36.5	6.00	9.838062500	283.5748409	19.31532882	190.37	0.241	45.91	93.21	49.80	15.32	8.19	20.3	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580P2	Pacific	Axial Volcano	Inferno	2011	Ti Piston	Focussed	Basalt	no seds, low H2	2.20	21.9	0.036	23.3	0.046	294.0	6.00	9.887500000	230.3383186	19.41113197	190.37	0.241	45.91	39.97	49.84	0.82	1.02	34.7	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580P3	Pacific	Axial Volcano	Inferno	2011	Ti Piston	Focussed	Basalt	no seds, low H2	2.90	28.8	0.036	18.5	0.046	249.3	6.00	9.907275000	182.7991453	19.46371318	130.54	0.241	31.48	52.25	37.01	0.00	0.89	33.7	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580B20	Pacific	Axial Volcano	Inferno	2011	Bag	Focussed	Basalt	no seds, low H2	3.00	36.9	0.036	15.4	0.046	96.7	6.00	10.262454550	157.7503716	20.15567348	190.37	0.241	45.91	-32.62	50.14	0.00	3.11	28.2	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580B22	Pacific	Axial Volcano	Mushroom	2011	Bag	Focussed	Basalt	no seds, low H2	18.50	34.5	0.036	34.5	0.046	111.8	6.00	9.877612500	340.8584786	19.39757196	190.37	0.241	45.91	150.49	49.84	8.08	2.67	54.2	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580BF21	Pacific	Axial Volcano	Mushroom	2011	Bag	Focussed	Basalt	no seds, low H2	20.10	33.8	0.036	30.7	0.046	103.5	6.00	10.262454550	315.2867917	20.15551741	190.37	0.241	45.91	124.92	50.14	7.25	2.91	55.3	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580BF19	Pacific	Axial Volcano	Mushroom	2011	Bag	Focussed	Basalt	no seds, low H2	18.70	24.2	0.036	35.5	0.046	131.3	6.00	10.120743590	359.4309384	19.87721466	190.37	0.241	45.91	169.06	50.02	7.73	2.29	78.1	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580BF23	Pacific	Axial Volcano	Hell	2011	Bag	Focussed	Basalt	no seds, low H2	13.70	40.6	0.036	27.0	0.046	83.4	6.00	10.022670890	270.8076165	19.67745078	190.37	0.241	45.91	80.44	49.94	5.79	3.59	35.7	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580P8	Pacific	Axial Volcano	Hell	2011	PVC Piston	Focussed	Basalt	no seds, low H2	3.50	57.2	0.036	32.9	0.046	196.4	6.00	10.110602560	332.4341886	19.85415934	190.37	0.241	45.91	142.07	50.01	4.34	1.53	27.3	no	Pass	NA
J2-580	47.9000	-129.0000	J2-580PF9	Pacific	Axial Volcano	Hell	2011	PVC Piston	Focussed	Basalt	no seds, low H2	11.00	208.1	0.036	50.1	0.046	303.6	6.00	9.972607595	499.8095676	19.58019570	190.37	0.241	45.91	309.44	49.91	6.12	0.99	10.2	contaminated	Pass	Melted Filter
J2-581	47.9000	-129.0000	J2-581PF3	Pacific	Axial Volcano	Casper	2011	Ti Piston	Focussed	Basalt	no seds, low H2	3.20	20.7	0.036	20.8	0.046	81.0	6.00	10.012658230	208.3293679	19.65001554	190.37	0.241	45.91	17.96	49.93	1.33	3.70	68.1	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581P4	Pacific	Axial Volcano	Casper	2011	Ti Piston	Focussed	Basalt	no seds, low H2	3.20	57.8	0.036	18.9	0.046	48.3	6.00	10.262454550	193.7282838	20.14977407	190.37	0.241	45.91	3.36	50.13	0.00	6.23	24.7	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581B18	Pacific	Axial Volcano	Bag City	2011	Bag	Diffuse	Basalt	no seds, low H2	50.40	62.0	0.036	39.6	0.046	57.0	6.00	10.272727270	407.1289104	20.17119096	190.37	0.241	45.91	216.76	50.14	22.82	5.28	56.0	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581B22	Pacific	Axial Volcano	Marker N3	2011	Bag	Diffuse	Basalt	no seds, low H2	50.80	61.1	0.036	73.9	0.046	131.3	6.00	10.130884620	748.3727380	19.88921857	190.37	0.241	45.91	558.01	50.03	25.50	2.29	59.2	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581P8	Pacific	Axial Volcano	Marker 33	2011	PVC Piston	Diffuse	Basalt	no seds, low H2	47.20	67.1	0.036	28.3	0.046	39.5	6.00	10.161307690	287.2496761	19.95032190	130.54	0.241	31.48	156.70	37.27	23.80	5.66	49.8	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581B20	Pacific	Axial Volcano	Spanish Steps	2011	Bag	Focussed	Basalt	no seds, low H2	12.50	49.9	0.036	34.1	0.046	152.5	6.00	10.283000000	350.8145467	20.19362037	130.54	0.241	31.48	220.27	37.40	8.67	1.47	30.7	no	Pass	NA
J2-581	47.9000	-129.0000	J2-581P6	Pacific	Axial Volcano	Trevi	2011	PVC Piston	Focussed	Basalt	no seds, low H2	6.30	91.4	0.036	33.1	0.046	138.0	6.00	10.022670890	332.0379711	19.67931639	190.37	0.241	45.91	141.67	49.95	6.16	2.17	17.0	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583P8	Pacific	Axial Volcano	9m chimney in worm colony	2011	PVC Piston	Focussed	Basalt	no seds, low H2	48.60	68.1	0.036	74.1	0.046	152.0	6.00	10.272727270	761.1737987	20.17266266	130.54	0.241	31.48	630.63	37.39	24.89	1.48	53.2	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583B20	Pacific	Axial Volcano	Escargot	2011	Teflon Bag	Diffuse	Basalt	no seds, low H2	50.50	53.1	0.036	66.6	0.046	135.8	6.00	9.867725000	657.4238967	19.37337449	130.54	0.241	31.48	526.88	36.96	23.28	1.63	83.6	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583P4	Pacific	Axial Volcano	El Guapo	2011	Ti Piston	Focussed	Basalt	no seds, low H2	2.90	24.7	0.036	25.4	0.046	267.4	6.00	10.130884620	257.4583070	19.88434295	130.54	0.241	31.48	126.91	37.23	2.85	0.84	136.8	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583Major White	Pacific	Axial Volcano	El Guapo	2011	Major	Focussed	Basalt	no seds, low H2	3.20	18.9	0.036	27.6	0.046	212.4	6.00	10.418302630	287.4566692	20.45556995	130.54	0.241	31.48	156.91	37.54	4.43	1.06	111.1	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583P3	Pacific	Axial Volcano	Diva	2011	Ti Piston	Focussed	Basalt	no seds, low H2	3.70	51.0	0.036	22.5	0.046	76.9	6.00	10.141025640	228.3329444	19.91382533	130.54	0.241	31.48	97.79	37.25	7.63	2.91	44.5	no	Pass	NA
J2-583	47.9000	-129.0000	J2-583P6	Pacific	Axial Volcano	Castle	2011	PVC Piston	Focussed	Basalt	no seds, low H2	2.60	11.2	0.036	11.3	0.046	20.0	6.00	9.388416667	106.0024073										no	Pass	Sample volume too low for SPE analysis
M82/3_756-1	37.8013	-31.5373	MAR 756 ROV 3,4 (8,9)	Atlantic	Menez Gwen	Fonte Nova	2011	KIPS	Diffuse	Basalt	no seds, low H2	45.10	53.1	0.036	107.8	0.046	256.9	6.00	9.877612500	1065.1434270	19.39483942	164.86	0.241	39.75	900.29	44.23	21.03	1.03	104.2	no	Pass	NA
M82/3_756-1	37.8013	-31.5373	MAR 756 ROV 7,4,5 (7,8,5)	Atlantic	Menez Gwen	Fonte Nova	2011	KIPS	Diffuse	Basalt	no seds, low H2	43.40	79.1	0.036	110.4	0.046	250.5	6.00	9.877612500	1090.8807050	19.39519681	164.86	0.241	39.75	926.02	44.23	22.18	1.06	66.9	no	Pass	NA
M82/3_756-1	37.8013	-31.5373	MAR 756 ROV 8,10 (4,2)	Atlantic	Menez Gwen	Milkyway 2	2011	KIPS	Diffuse	Basalt	no seds, low H2	53.90	100.3	0.036	115.5	0.046	256.0	6.00	10.002645570	1155.3471650	19.64128407	197.92	0.241	47.73	957.43	51.61	22.44	1.21	60.9	no	Pass	NA
M82/3_739-1	37.8438	-31.5190	MAR 739 ROV 4 (9)	Atlantic	Menez Gwen	Whiteflames	2011	KIPS	Focussed	Basalt	no seds, low H2	27.10		0.036	93.6	0.046	261.0	6.00	10.012658230	937.4678854	19.65939311	164.86	0.241	39.75	772.61	44.35	17.76	1.02	8.8	no	Pass	extreme outlier from other samples at similar Mg
M82/3_739-1	37.8438	-31.5190	MAR 739 ROV 9 (4)	Atlantic	Menez Gwen	Marker 4	2011	KIPS	Focussed	Basalt	no seds, low H2	19.90	12.6	0.036	38.5	0.046	236.4	6.00	10.272727270	395.4084019	20.17285386	197.92	0.241	47.73	197.49	51.82	5.01	1.32	457.6	no	Pass	NA
M82/3_739-1	37.8438	-31.5190	MAR 739 ROV 14, 15 (2,1)	Atlantic	Menez Gwen	Atos 10	2011	KIPS	Focussed	Basalt	no seds, low H2	6.32	6.9	0.036	21.9	0.046	238.6	6.00	10.262454550	224.7563621	20.14306417	164.86	0.241	39.75	59.90	44.57	1.51	1.12	455.2	no	Pass	NA
M82/3_722-1	37.8447	-31.5200	MAR 722 3,4,5 (8,6,5)	Atlantic	Menez Gwen	Cage	2011	KIPS	Focussed	Basalt	no seds, low H2	38.40	215.1	0.036	91.5	0.046	265.9	6.00	10.042696200	918.6248101	19.71861737	197.92	0.241	47.73	720.70	51.64	16.27	1.17	34.1	no	Pass	NA
M82/3_722-1	37.8447	-31.5200	MAR 722 ROV 6 (4)	Atlantic	Menez Gwen	Whiteflames	2011	KIPS	Focussed	Basalt	no seds, low H2	31.40	51.8	0.036	71.1	0.046	244.6	6.00	9.887500000	702.6416014	19.41288503	164.86	0.241	39.75	537.78	44.24	13.19	1.09	85.1	no	Pass	NA
M82/3_719-1	37.8435	-31.5200	MAR 719 ROV 5 (5)	Atlantic	Menez Gwen	Woody	2011	KIPS	Diffuse	Basalt	no seds, low H2	53.50	48.3	0.036	112.8	0.046	241.5	6.00	10.387078950	1172.0456060	20.39559186	164.86	0.241	39.75	1007.19	44.68	25.02	1.11	107.9	no	Pass	NA
M82/3_722-1	37.8447	-31.5200	MAR 722 ROV 9 (1)	Atlantic	Menez Gwen	Cage	2011	KIPS	Focussed	Basalt	no seds, low H2	12.20	33.7	0.036	73.3	0.046	258.5	6.00	10.407894740	763.3789741	20.43699728	164.86	0.241	39.75	598.52	44.70	13.89	1.04	61.8	no	Pass	NA
M82/3_722-1	37.8447	-31.5200	MAR 722 ROV 7,8 (2,3)	Atlantic	Menez Gwen	Cage	2011	KIPS	Focussed	Basalt	no seds, low H2	13.70	25.1	0.036	59.3	0.046	240.3	6.00	10.141025640	600.9061533	19.91056671	164.86	0.241	39.75	436.05	44.46	10.89	1.11	281.2	no	Pass	NA
MSM10/3_290ROV-11	14.7500	-44.9667	290 ROV 12 MSM 10/3	Atlantic	Logatchev	Irina I	2009	KIPS	Focussed	Gabbro/Peridotite	High H2	12.60	68.2	0.036	45.4	0.046	180.0	6.00	10.100461540	458.3858304	19.83466733	164.86	0.241	39.75	293.53	44.43	9.78	1.48	43.5	no	Pass	NA
MSM10/3_313ROV-12	14.7517	-44.9781	313 ROV 13 MSM 10/3	Atlantic	Logatchev	Site B	2009	KIPS	Focussed	Gabbro/Peridotite	High H2	16.20	146.7	0.036	48.9	0.046	87.0	6.00	9.539650602	466.4348358	18.73172161	197.92	0.241	47.73	268.51	51.27	18.51	3.54	48.2	no	Pass	NA
MSM10/3_300	14.7525	-44.9780	MSM 10/3 300 ROV 15-21 KIPS 02-C9	Atlantic	Logatchev	Irina II diffusive	2009	KIPS	Diffuse	Gabbro/Peridotite	High H2	52.10	107.4	0.036	232.7	0.046	580.0	6.00	10.120743590	2355.0492450	19.87148186	164.86	0.241	39.75	2190.19	44.44	22.66	0.46	39.0	no	Pass	NA
MSM10/3_300	14.7525	-44.9780	MSM 10/3 300 ROV A2, A3, B4, B5, B6	Atlantic	Logatchev	Irina II diffusive	2009	KIPS	Diffuse	Gabbro/Peridotite	High H2	52.08	402.1	0.036	465.8	0.046	580.0	6.00	10.262454550	4779.9540930	20.14997555	197.92	0.241	47.73	4582.03	51.81	47.40	0.54	16.8	contaminated	Pass	extreme outlier from other samples at similar Mg
JC82_ISIS_198	18.3751	-81.7976	JC82 ISIS 198 FLU1	Caribbean	Von Damm	Main Spire	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	15.00	226.7	0.063																no	Pass	NA
JC82_ISIS_198	18.3751	-81.7976	JC82 ISIS 198 FLU2	Caribbean	Von Damm	Main Spire	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	32.40	134.4	0.063	86.9	0.064	36.9	0.63	10.000000000	869.0000000	27.06012658	370.70	0.107	39.79	498.30	48.12	14.70	0.82	10.9	no	Pass	NA
JC82_ISIS_198	18.3751	-81.7976	JC82 ISIS 198 FLU3	Caribbean	Von Damm	Main Spire	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	29.30	253.9	0.063																no	Pass	NA
JC82_ISIS_198	18.3751	-81.7976	JC82 ISIS 198 FLU4	Caribbean	Von Damm	Main Spire	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	40.40	189.9	0.063	80.5	0.064	43.2	0.60	10.000000000	804.8000000	27.05889662	370.70	0.107	39.79	434.10	48.12	11.20	0.67	5.9	no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82 ISIS 200 FLU5	Caribbean	Von Damm	Hotter than Hole	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	27.60	228.8	0.063																no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82 ISIS 200 FLU6	Caribbean	Von Damm	Hotter than Hole	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments		271.5	0.063	39.0	0.064	36.1	0.62	10.000000000	390.5000000	27.05633803	370.70	0.107	39.79	19.80	48.12	6.70	0.83	2.5	contaminated	Pass	Chimney (Talc) material in sample - contaminated for Mg
JC82_ISIS_200	18.3768	-81.7979	JC82 ISIS 200 FLU7	Caribbean	Von Damm	Hotter than Hole	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	27.90	238.7	0.063																no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82 ISIS 200 FLU8	Caribbean	Von Damm	Hotter than Hole	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	31.50	259.6	0.063	47.4	0.064	35.3	0.60	10.000000000	474.3000000	27.06093190	370.70	0.107	39.79	103.60	48.12	8.10	0.82	3.1	no	Pass	NA
JC82_ISIS_202	18.3768	-81.7979	JC82 ISIS 202 FLU9	Caribbean	Von Damm	X15 marker	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	53.90	351.5	0.063	117.9	0.064	34.5	0.63	10.000000000	1179.4000000	27.05888587	370.70	0.107	39.79	808.70	48.12	21.40	0.88	6.1	no	Pass	NA
JC82_ISIS_202	18.3768	-81.7979	JC82 ISIS 202 FLU10	Caribbean	Von Damm	X15 marker	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	30.00	369.5	0.063																no	Pass	NA
JC82_ISIS_202	18.3768	-81.7979	JC82 ISIS 202 FLU11	Caribbean	Von Damm	chimlet 2	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	25.50	761.8	0.063	36.4	0.064	31.9	0.65	10.000000000	364.3000000	27.05393906	370.70	0.107	39.79	-6.40	48.12	7.40	0.98	1.0	no	Pass	NA
JC82_ISIS_202	18.3768	-81.7979	JC82 ISIS 202 FLU12	Caribbean	Von Damm	chimlet 2	2013	Gas tight	Focussed	Gabbro/Peridotite	Sediments	44.10	439.0	0.063																no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82-006-ISIS200/MN02	Caribbean	Von Damm	Hotter than Hole	2013	Mini Niskin	Focussed	Gabbro/Peridotite	Sediments	52.70	43.3	0.063	108.6	0.017	252.4	0.64	100.000000000	10860.9000000	71.08572954	1895.10	0.172	325.96	8965.80	333.62	27.70	0.85	64.0	no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82-006-ISIS200/MN03	Caribbean	Von Damm	Main Spire	2013	Mini Niskin	Focussed	Gabbro/Peridotite	Sediments	52.70	41.4	0.063	95.2	0.017	250.0	0.64	100.000000000	9520.7000000	71.08405895	1895.10	0.172	325.96	7625.60	333.62	24.40	0.85	58.9	no	Pass	NA
JC82_ISIS_200	18.3768	-81.7979	JC82-006-ISIS200/MN06	Caribbean	Von Damm	Hotter than Hole	2013	Mini Niskin	Focussed	Gabbro/Peridotite	Sediments	52.70	47.2	0.063	100.8	0.017	253.7	0.64	100.000000000	10077.7000000	71.08566439	1895.10	0.172	325.96	8182.60	333.62	25.20	0.84	53.4	no	Pass	NA
JC82_ISIS_204	18.3768	-81.7979	JC82 ISIS 204 FLU14	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	49.60	71.2	0.063																no	Pass	NA
JC82_ISIS_204	18.3768	-81.7979	JC82 ISIS 204 FLU15	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	48.60	64.5	0.063																no	Pass	NA
JC82_ISIS_204	18.3768	-81.7979	JC82 ISIS 204 FLU17	Caribbean	Beebe Vents	Deepest vents	2013	Gas tight	Focussed	Basalt	High H2	10.90	108.7	0.063	170.8	0.064	35.4	0.63	10.000000000	1707.9000000	27.05925405	370.70	0.107	39.79	1337.20	48.12	30.50	0.86	28.1	no	Pass	NA
JC82_ISIS_204	18.3768	-81.7979	JC82 ISIS 204 FLU18	Caribbean	Beebe Vents	Deepest vents	2013	Gas tight	Focussed	Basalt	High H2	26.00	93.7	0.063	153.5	0.064	31.2	0.63	10.000000000	1535.4000000	27.05728149	370.70	0.107	39.79	1164.70	48.12	30.90	0.97	33.0	no	Pass	NA
JC82_ISIS_206	18.3768	-81.7979	JC82 ISIS 206 FLU19	Caribbean	Beebe Vents	Beebe Woods (Site C)	2013	Gas tight	Focussed	Basalt	High H2	15.90	70.3	0.063																no	Pass	NA
JC82_ISIS_206	18.3768	-81.7979	JC82 ISIS 206 FLU20	Caribbean	Beebe Vents	Beebe Woods (Site C)	2013	Gas tight	Focussed	Basalt	High H2	33.10	78.0	0.063																no	Pass	NA
JC82_ISIS_206	18.3768	-81.7979	JC82 ISIS 206 FLU21	Caribbean	Beebe Vents	Beebe Woods (Site C)	2013	Gas tight	Focussed	Basalt	High H2	29.40	83.5	0.063	119.2	0.064	39.1	0.60	10.000000000	1192.4000000	27.05971151	370.70	0.107	39.79	821.70	48.12	18.40	0.74	22.0	no	Pass	NA
JC82_ISIS_206	18.3768	-81.7979	JC82 ISIS 206 FLU22	Caribbean	Beebe Vents	Beebe Woods (Site C)	2013	Gas tight	Focussed	Basalt	High H2	38.20	70.9	0.063	127.0	0.064	37.4	0.63	10.000000000	1269.6000000	27.05793163	370.70	0.107	39.79	898.90	48.12	21.30	0.81	30.0	no	Pass	NA
JC82_ISIS_207	18.3768	-81.7979	JC82 ISIS 207 FLU23	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	2.30	252.8	0.063																no	Pass	NA
JC82_ISIS_207	18.3768	-81.7979	JC82 ISIS 207 FLU24	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	38.30	69.9	0.063	627.1	0.064	32.3	0.60	10.000000000	6271.1000000	27.05833107	370.70	0.107	39.79	5900.40	48.12		0.89		no	Pass	SPEDOC higher than DOC
JC82_ISIS_207	18.3768	-81.7979	JC82 ISIS 207 FLU25	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	6.30	276.9	0.063																no	Pass	NA
JC82_ISIS_207	18.3768	-81.7979	JC82 ISIS 207 FLU26	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Gas tight	Focussed	Basalt	High H2	3.60	346.4	0.063																no	Pass	NA
JC82_ISIS_204	18.3768	-81.7979	JC82-018-ISIS204/MN02	Caribbean	Beebe Vents	Deepest vents	2013	Mini Niskin	Focussed	Basalt	High H2	52.70	47.9	0.063	91.8	0.017	259.1	0.61	100.000000000	9184.7000000	71.08397661	1895.10	0.172	325.96	7289.60	333.62	21.50	0.79	44.9	no	Pass	NA
JC82_ISIS_207	18.3768	-81.7979	JC82-024-ISIS207/MNISKIN	Caribbean	Beebe Vents	Beebe 125 (Chimney 1)	2013	Mini Niskin	Focussed	Basalt	High H2	52.70	41.2	0.063	91.6	0.017	254.2	0.62	100.000000000	9163.8000000	71.08377529	1895.10	0.172	325.96	7268.70	333.62	22.50	0.81	54.6	no	Pass	NA
JC80_ISIS_189	-56.0883	-30.1890	JC80 ISIS189 B1-02	Southern	E2	Dog's Head	2012	Major	Focussed	Basalt	no seds, low H2	1.50	51.8	0.063																no	Pass	NA
JC80_ISIS_189	-56.0883	-30.1890	JC80 ISIS189 Y2-04	Southern	E2	Dog's Head Diffuse	2012	Major	Diffuse	Basalt	no seds, low H2	49.70	57.5	0.063																no	Pass	NA
JC80_ISIS_190	-56.0883	-30.1890	JC80 ISIS190 B2-08	Southern	E2	Dog's Head	2012	Major	Focussed	Basalt	no seds, low H2	1.70	47.2	0.063	22.3	0.064	223.0	0.62	100.000000000	2232.1000000	270.58263520	370.70	0.107	39.79	1861.40	273.49	6.20	0.76	13.1	no	Pass	NA
JC80_ISIS_190	-56.0883	-30.1890	JC80 ISIS190 Y1-06	Southern	E2	Dog's Head	2012	Major	Focussed	Basalt	no seds, low H2	1.00	35.6	0.063	22.5	0.064	229.4	0.63	100.000000000	2250.9000000	270.58843130	370.70	0.107	39.79	1880.20	273.50	6.20	0.75	17.4	no	Pass	NA
JC80_ISIS_194	-56.0883	-30.1890	JC80-ISIS194 Y2-01	Southern	E2	Dog's Head	2012	Major	Focussed	Basalt	no seds, low H2	1.20	33.8	0.063	243.6	0.064	37.5	0.61	100.000000000	24355.1000000	270.58018650	370.70	0.107	39.79	23984.40	273.49		4.45		no	Pass	SPEDOC higher than DOC
JC80_015_CTD	-56.0889	-30.3191	JC080-015-CTD45/n02	Southern	E2	Dog's Head	2012	CTD	Focussed	Basalt	no seds, low H2	52.30	40.0	0.063	74.5	0.017	248.9	0.66	100.000000000	7451.8000000	71.08618052	1895.10	0.172	325.96	5556.70	333.62	19.60	0.88	49.0	no	Pass	NA
JC80_015_CTD	-56.0889	-30.3191	JC080-015-CTD45/n03	Southern	E2	Dog's Head	2012	CTD	Focussed	Basalt	no seds, low H2	52.30	39.1	0.063	100.1	0.017	247.1	0.63	100.000000000	10012.4000000	71.08235788	1895.10	0.172	325.96	8117.30	333.62	25.60	0.85	65.5	no	Pass	NA
JC80_015_CTD	-56.0889	-30.3191	JC080-015-CTD45/n14	Southern	E2	Dog's Head	2012	CTD	Focussed	Basalt	no seds, low H2	52.30	41.0	0.063	112.0	0.017	255.8	0.62	100.000000000	11198.1000000	71.08571990	1895.10	0.172	325.96	9303.00	333.62	27.10	0.81	66.1	no	Pass	NA
JC80_015_CTD	-56.0889	-30.3191	JC080-015-CTD45/n21	Southern	E2	Dog's Head	2012	CTD	Focussed	Basalt	no seds, low H2	52.30	41.5	0.063	68.9	0.017	253.7	0.65	100.000000000	6888.8000000	71.08422367	1895.10	0.172	325.96	4993.70	333.62	17.80	0.85	42.9	no	Pass	NA
JC42_ISIS_130	-56.0885	-30.3184	ISIS130 Y2-01	Southern	E2	Sepia	2010	Major	Focussed	Basalt	no seds, low H2	12.10	23.3	0.1																no	Pass	NA
JC42_ISIS_130	-56.0885	-30.3184	ISIS130-Y2-04	Southern	E2	Sepia	2010	Major	Focussed	Basalt	no seds, low H2	2.30	16.3	0.1																no	Pass	NA
JC42_ISIS_130	-56.0885	-30.3184	ISIS130 B2-05	Southern	E2	Dog's Head	2010	Major	Focussed	Basalt	no seds, low H2	2.10	32.0	0.1																no	Pass	NA
JC42_ISIS_130	-56.0885	-30.3184	ISIS130-B2-08	Southern	E2	Dog's Head	2010	Major	Focussed	Basalt	no seds, low H2	2.30	39.7	0.1																no	Pass	NA
JC42_ISIS_133	-56.0887	-30.3180	ISIS133 Y2-01	Southern	E2	Dog's Head Diffuse	2010	Major	Diffuse	Basalt	no seds, low H2	52.60	61.5	0.1																no	Pass	NA
JC42_ISIS_133	-56.0887	-30.3180	ISIS133 Y2-04	Southern	E2	Dog's Head Diffuse	2010	Major	Diffuse	Basalt	no seds, low H2	52.70	75.7	0.1																no	Pass	NA
JC42_ISIS_133	-56.0887	-30.3180	ISIS 133 B2-05	Southern	E2	Dog's Head Diffuse	2010	Major	Diffuse	Basalt	no seds, low H2	49.90	99.6	0.1																no	Pass	NA
JC42_ISIS_134	-56.0883	-30.1890	ISIS 134 B1-02	Southern	E2	Dog's Head Diffuse	2010	Major	Diffuse	Basalt	no seds, low H2	51.70	60.5	0.1																no	Pass	NA
JC42_ISIS_134	-56.0883	-30.1890	ISIS 134 B1-03	Southern	E2	Dog's Head Diffuse	2010	Major	Diffuse	Basalt	no seds, low H2	51.80	58.0	0.1																no	Pass	NA
JC42_ISIS_141	-56.0883	-30.1890	ISIS141 Y1-07	Southern	E2	South Field	2010	Major	Diffuse	Basalt	no seds, low H2	50.50	87.6	0.1																no	Pass	NA
JC42_ISIS_141	-56.0883	-30.1890	ISIS141 Y1-06	Southern	E2	South Field	2010	Major	Diffuse	Basalt	no seds, low H2	50.20	116.1	0.1																no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	741R3	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Hairy Cone	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	26.40	265.6																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	741R4	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Hairy Cone	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	31.40	194.7																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	741R5	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Hairy Cone	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	17.90	334.1																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	886R3	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	White Cone	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	42.50	190.3																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	886R4	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Daifukuyama	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	38.30	106.9																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	886R5	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Daifukuyama	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	35.70	117.9																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	893R1	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	Hairy Cone	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	47.60	98.0																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	886N1	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	SW	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	51.80	70.1																	no	Pass	NA
Wakamiko_Crater	31.6683	130.7633	886N2	Pacific	Wakamiko Crater (Yamanaka et al., 2013)	SW	2007-2008	Ti/polycarbonate	Focussed	Felsic	Sediments previously reported	53.30	70.3																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3865m23	Atlantic	Lost City (Lang et al., 2010)	SW	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	54.10	46.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3870p23	Atlantic	Lost City (Lang et al., 2010)	LC-8	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	31.60	74.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3877m23	Atlantic	Lost City (Lang et al., 2010)	LC-H	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	43.80	68.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878b8	Atlantic	Lost City (Lang et al., 2010)	LC-H	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	34.20	80.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878b9	Atlantic	Lost City (Lang et al., 2010)	LC-H	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	41.40	58.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878b11	Atlantic	Lost City (Lang et al., 2010)	LC-H	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	28.30	71.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3870b8	Atlantic	Lost City (Lang et al., 2010)	LC-IF/2	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	12.90	94.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3874bf14	Atlantic	Lost City (Lang et al., 2010)	LC-C	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	15.10	84.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3874p22	Atlantic	Lost City (Lang et al., 2010)	LC-C	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	13.00	89.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3874pf23	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	2.10	101.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3874pf24	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	3.40	98.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3876m23	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	2.30	88.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3876m24	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	0.60	102.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3876m14	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	1.20	106.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3876m4	Atlantic	Lost City (Lang et al., 2010)	LC-B	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	0.90	92.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3863m24	Atlantic	Lost City (Lang et al., 2010)	LC-3	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	34.50	68.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878p4	Atlantic	Lost City (Lang et al., 2010)	LC-3	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	37.90	67.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878b18	Atlantic	Lost City (Lang et al., 2010)	LC-3	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	30.60	75.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3863m11	Atlantic	Lost City (Lang et al., 2010)	LC-3	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	3.00	97.0																	no	Pass	NA
AMK47-Lost_City	30.1250	-42.1170	3878pf24	Atlantic	Lost City (Lang et al., 2010)	LC-3	NA	Major/HFPS	Focussed	GP Prev	High H2 previously reported	16.90	91.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Raven	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	8.50	15.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Hulk	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	2.20	27.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Puffer	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	4.50	15.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	South Grotto	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	0.90	11.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Dudley	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	17.10	21.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	S&M	2002	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	1.40	16.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Hell	2003	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	1.50	18.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Hell	2003	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	1.90	25.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Inferno	2003	Major/HFPS	Focussed	B Prev	no seds, low H2 previously reported	5.70	8.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker 33	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	45.40	35.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker 113	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	51.30	38.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Village	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	46.40	36.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Village	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	47.50	36.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Vixen	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	46.10	53.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Vixen	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	47.30	37.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker N3	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	51.70	60.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Crack	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	49.30	34.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Collum	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	51.70	48.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker 33	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	52.10	41.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker 113	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	49.60	71.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker 113	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	51.10	52.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker N3	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	53.30	40.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Marker N41	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	50.70	54.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Old Worms	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	53.00	53.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Old Worms	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	53.50	54.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Axial	45.9600	-130.0100	NA	Pacific	Axial 2002-2003 (Lang et al., 2006)	Styx	2003	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	49.90	51.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Raven Field	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	49.10	42.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	S&M	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	51.90	46.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Raven	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	49.50	56.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Hulk	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	48.80	45.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Hulk	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	52.00	40.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Easter Island	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	48.80	39.0																	no	Pass	NA
Juan_de_Fuca_Ridge_Endeavour	48.0000	-129.0000	NA	Pacific	Endeavour 2002-2003 (Lang et al., 2006)	Easter Island	2002	Major/HFPS	Diffuse	B Prev	no seds, low H2 previously reported	48.70	48.0																	no	Pass	NA