/* DATA DESCRIPTION:
Citation:	Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (1985): (Table 1) Chemisity of interstitial water at DSDP Leg 66 holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.804665, 
	Supplement to: Gieskes, JM et al. (1985): Appendix: Interstitial water studies, Leg 66. In: von Heune, R; Aubouin, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 84, 961-967, https://doi.org/10.2973/dsdp.proc.84.app.1985
Abstract:	During Leg 66, a transect was drilled across the Middle America Trench off Mexico. In this report, interstitial water analyses for Sites 487 (on oceanic crust), 490, 491, and 492 (continental slope apron), and 493 (upper continental slope) are presented. All sites are characterized by high sedimentation rates, and as a result sulfate reduction and methane generation processes are very important. At Sites 490 through 492 decreases in chlorinity are evidence of the presence of gas hydrates. At Site 493 a sharp increase in dissolved calcium and the complete depletion of dissolved magnesium just above basement indicate that weathering of continental crust is still an ongoing process.
Project(s):	Deep Sea Drilling Project (DSDP) (URI: https://www.deepseadrilling.org/)
Coverage:	MEDIAN LATITUDE: 16.180514 * MEDIAN LONGITUDE: -98.989400 * SOUTH-BOUND LATITUDE: 15.853500 * WEST-BOUND LONGITUDE: -99.175300 * NORTH-BOUND LATITUDE: 16.381000 * EAST-BOUND LONGITUDE: -98.925500
	DATE/TIME START: 1979-03-24T00:00:00 * DATE/TIME END: 1979-04-24T00:00:00
	MINIMUM DEPTH, sediment/rock: 3 m * MAXIMUM DEPTH, sediment/rock: 620 m
Event(s):	66-487 * LATITUDE: 15.853500 * LONGITUDE: -99.175300 * DATE/TIME: 1979-03-24T00:00:00 * ELEVATION: -4764.0 m * PENETRATION: 190.5 m * RECOVERY: 119.6 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 20 cores; 180.5 m cored; 9.5 m drilled; 66.3 % recovery
	66-490 * LATITUDE: 16.159300 * LONGITUDE: -99.056500 * DATE/TIME: 1979-04-08T00:00:00 * ELEVATION: -1761.0 m * PENETRATION: 588.5 m * RECOVERY: 343.4 m * LOCATION: North Pacific/TRANSITION ZONE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 63 cores; 577 m cored; 9 m drilled; 59.5 % recovery
	66-491 * LATITUDE: 16.029000 * LONGITUDE: -98.972200 * DATE/TIME: 1979-04-13T00:00:00 * ELEVATION: -2883.0 m * PENETRATION: 542 m * RECOVERY: 389.4 m * LOCATION: North Pacific/SLOPE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 58 cores; 532.5 m cored; 4.5 m drilled; 73.1 % recovery
	66-492 * LATITUDE: 16.078800 * LONGITUDE: -98.945300 * DATE/TIME: 1979-04-20T00:00:00 * ELEVATION: -1935.0 m * PENETRATION: 279 m * RECOVERY: 177.5 m * LOCATION: North Pacific/SLOPE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 29 cores; 260.2 m cored; 0 m drilled; 68.2 % recovery
	66-493 * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 670.5 m * RECOVERY: 330.8 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 56 cores; 518.5 m cored; 28.5 m drilled; 63.8 % recovery
	66-493A * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 12 m * RECOVERY: 7.6 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 2 cores; 12 m cored; 0 m drilled; 63.3 % recovery
	66-493B * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 126 m * RECOVERY: 59.4 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger (URI: https://www-odp.tamu.edu:443/glomar.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 12 cores; 114 m cored; 0 m drilled; 52.1 % recovery
Comment:	DEPTH, sediment [m] is given in mbsf.
Parameter(s):	Event label (Event)
	Latitude of event (Latitude)
	Longitude of event (Longitude)
	Elevation of event [m] (Elevation)
	Sample code/label (Sample label) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: DSDP/ODP/IODP sample designation (URI: hdl:10013/epic.27914.d001)
	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE
	Alkalinity, total [mmol(Eq)/l] (AT) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration * COMMENT: Unit in paper meq/dm**3
	Calcium [mmol/l] (Ca) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
	Magnesium [mmol/l] (Mg) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
	Chloride [mg/kg] (Cl-) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
	Sulfate [mmol/l] ([SO4]2-) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
	Ammonium [µmol/l] ([NH4]+) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
	Silicon [µmol/l] (Si) * PI: Gieskes, Joris M (jgieskes@ucsd.edu) * METHOD/DEVICE: Titration
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	532 data points
*/
Event	Latitude	Longitude	Elevation [m]	Sample label	Depth sed [m]	AT [mmol(Eq)/l]	Ca [mmol/l]	Mg [mmol/l]	Cl- [mg/kg]	[SO4]2- [mmol/l]	[NH4]+ [µmol/l]	Si [µmol/l]
66-487	15.8535	-99.1753	-4764	66-487-2-4,110-146	6	15.9	6.70	63.00	19380	18.10	1614	408
66-487	15.8535	-99.1753	-4764	66-487-3-4,140-150	16	34.1	4.50	50.50	19700	2.75	2794	630
66-487	15.8535	-99.1753	-4764	66-487-5-2.140-150	32	33.1	3.10	48.70	19440	2.73	2635	641
66-487	15.8535	-99.1753	-4764	66-487-8-5,140-150	65	15.0	2.70	47.40	19700		1696	784
66-487	15.8535	-99.1753	-4764	66-487-10-5,140-150	84	13.7	5.20	48.30	19830	9.44	1365	743
66-487	15.8535	-99.1753	-4764	66-487-12-3,140-150	100	12.9	5.00	49.20	19770		1032	473
66-487	15.8535	-99.1753	-4764	66-487-15-6,140-150	133	6.3	10.30	53.70	19740	23.30	306	690
66-487	15.8535	-99.1753	-4764	66-487-18-6,140-150	162	3.2	10.40	53.40	19050	22.60	33	658
66-490	16.1593	-99.0565	-1761	66-490-1-3,140-150	4	11.0	9.11	51.81	19660	21.96	761	595
66-490	16.1593	-99.0565	-1761	66-490-2-4,140-150	15	35.2	1.28	50.63	19570	0.00	3134	485
66-490	16.1593	-99.0565	-1761	66-490-3-5,140-150	26	56.7	0.69	53.63	19920		5639	697
66-490	16.1593	-99.0565	-1761	66-490-4-4,140-150	34	68.1	0.90	58.10	19570	1.72	7033	426
66-490	16.1593	-99.0565	-1761	66-490-5-5,140-150	45	69.7	0.76	60.08	19640		7738	346
66-490	16.1593	-99.0565	-1761	66-490-8-2,140-150	69	93.6	0.86	62.58	19410		11540	240
66-490	16.1593	-99.0565	-1761	66-490-15-3,140-150	137	119.8	2.64	58.08	18490	2.23	16180	163
66-490	16.1593	-99.0565	-1761	66-490-18-5,140-150	168	78.9	0.80	41.93	18720		14726	282
66-490	16.1593	-99.0565	-1761	66-490-21-5,140-150	197	91.0	0.43	48.04	18920	7.80	14130	418
66-490	16.1593	-99.0565	-1761	66-490-25-5,140-150	235	107.6	1.01	49.57	19970		16749	732
66-490	16.1593	-99.0565	-1761	66-490-29-3,140-150	270	49.9	2.32	29.88	19870		12100	700
66-490	16.1593	-99.0565	-1761	66-490-34-2,140-150	305	32.9	1.19	35.54	20550	8.18	10248	604
66-490	16.1593	-99.0565	-1761	66-490-40-5,140-150	368	20.1	5.22	31.57	19640		8452	389
66-490	16.1593	-99.0565	-1761	66-490-54-3,110-120	488	7.5	6.15	34.13	19550		6567	546
66-490	16.1593	-99.0565	-1761	66-490-59-3,140-150	536	16.4	14.80	33.63	20160	4.85	5404	493
66-491	16.0290	-98.9722	-2883	66-491-1-5,140-150	7	19.8	7.36	46.88	19470	5.95	2472	821
66-491	16.0290	-98.9722	-2883	66-491-2-3,140-150	14	20.0	6.43	44.60	18750	2.45	2999	701
66-491	16.0290	-98.9722	-2883	66-491-3-5,140-150	26	33.5	3.95	39.51	18130	1.37	8839	909
66-491	16.0290	-98.9722	-2883	66-491-4-4,140-150	31	35.3	2.74	38.59	19050		9858	810
66-491	16.0290	-98.9722	-2883	66-491-5-2,140-150	39	33.7	1.43	39.73	18790		11540	761
66-491	16.0290	-98.9722	-2883	66-491-7-5,140-150	65	42.0	1.27	33.13	18130	8.71	22670	481
66-491	16.0290	-98.9722	-2883	66-491-9-2,140-150	78	41.9	1.08	34.05	18980	0.00	23857	559
66-491	16.0290	-98.9722	-2883	66-491-14-4,140-150	117	30.0	4.15	25.67	15320		28323	503
66-491	16.0290	-98.9722	-2883	66-491-19-3,140-150	166	27.0	0.34	26.06	15190		31090	606
66-491	16.0290	-98.9722	-2883	66-491-25-5,140-150	217	37.1	0.99	32.37	16370	0.00	31734	718
66-491	16.0290	-98.9722	-2883	66-491-30-5,140-150	264	34.1	1.26	26.89	17350		34654	667
66-491	16.0290	-98.9722	-2883	66-491-35-4,140-150	310	21.5	1.04	28.58	15710	2.51	26346	641
66-491	16.0290	-98.9722	-2883	66-491-41-4,140-150	367	38.7	2.68	26.16	14760		32882	692
66-491	16.0290	-98.9722	-2883	66-491-48-5,140-150	435	8.1	5.87	37.03	17940	17.89	22979	657
66-491	16.0290	-98.9722	-2883	66-491-54-1,140-150	488	9.9	4.81	32.86	17840	4.55	23022	553
66-492	16.0788	-98.9453	-1935	66-492-1-2,140-150	3	8.8	9.45	51.50	19380	22.48	1608	703
66-492	16.0788	-98.9453	-1935	66-492-2-4,140-150	9	18.2	7.13	48.94	19470	12.16	8886	880
66-492	16.0788	-98.9453	-1935	66-492-3-4,140-150	19	16.2	4.57	43.47	19050	9.12	2418	633
66-492	16.0788	-98.9453	-1935	66-492-4-5,140-150	30	19.3	5.68	47.34	19800		2259	922
66-492	16.0788	-98.9453	-1935	66-492-5-4,140-150	38	20.0	5.59	43.93	19160	0.00	3589	785
66-492	16.0788	-98.9453	-1935	66-492-8-2,140-150	63	16.0	6.82	39.46	18130		4485	904
66-492	16.0788	-98.9453	-1935	66-492-11-3,140-150	93	10.3	6.45	38.78	17800	0.00	9054	645
66-492	16.0788	-98.9453	-1935	66-492-16-5,140-150	144	5.6	10.27	37.58	17150		10977	747
66-492	16.0788	-98.9453	-1935	66-492-20-5,140-150	182	14.0	18.66	34.66	17020	0.00	10601	731
66-492	16.0788	-98.9453	-1935	66-492-23-5,140-150	210	11.9	22.16	32.16	16530	0.00	11020	714
66-493	16.3810	-98.9255	-645	66-493-1-3,140-150	4	12.8	9.46	52.66	19310	23.20	1412	621
66-493	16.3810	-98.9255	-645	66-493-2-2,140-150	123	25.2	6.44	36.92	19640	0.00	7581	578
66-493	16.3810	-98.9255	-645	66-493-3-1,140-150	131	23.8	7.57	36.85	19370	2.54	7710	550
66-493	16.3810	-98.9255	-645	66-493-5-3,140-150	153	11.3	3.16	33.75	19050		8835	838
66-493	16.3810	-98.9255	-645	66-493-7-2,140-150	170	9.2	3.04	33.65	18920		9390	834
66-493	16.3810	-98.9255	-645	66-493-9-4,140-150	192	14.8	6.39	35.59	20030	0.00	10783	816
66-493	16.3810	-98.9255	-645	66-493-11-2,140-150	208	7.8	3.35	34.07	19180		12017	878
66-493	16.3810	-98.9255	-645	66-493-16-3,86-96	257	4.9	7.31	37.61	19110		2335	835
66-493	16.3810	-98.9255	-645	66-493-21-5,140-150	308	8.8	13.14	31.33	20720	0.00	20108	654
66-493	16.3810	-98.9255	-645	66-493-27-3,140-150	342	11.6	20.34	33.55	18720		9237	568
66-493	16.3810	-98.9255	-645	66-493-31-5,140-150	382	7.6	24.30	32.98	19050	8.44	5795	819
66-493	16.3810	-98.9255	-645	66-493-36-3,140-150	447	3.1	29.60	32.48	18720		5658	183
66-493	16.3810	-98.9255	-645	66-493-41-2,140-150	493	1.9	36.70	27.38	18650	7.84	5445	119
66-493	16.3810	-98.9255	-645	66-493-46-4,140-150	544	2.2	50.00	22.50	18920		2984	76
66-493	16.3810	-98.9255	-645	66-493-54-5,140-150	620	1.6	136.30	1.17	17550	4.35	2510	91
66-493A	16.3810	-98.9255	-645	66-493A-2-2,143-150	5	26.0	2.32	52.57	20160		2946	787
66-493B	16.3810	-98.9255	-645	66-493B-1-2,140-150	15	28.1	1.96	51.63	19310	0.00	3426	797
66-493B	16.3810	-98.9255	-645	66-493B-2-4,140-150	27	38.5	1.74	56.60	19240	4.48	5628	775
66-493B	16.3810	-98.9255	-645	66-493B-3-5,140-150	38	40.9	3.71	46.14	19770	4.48	7411	723
66-493B	16.3810	-98.9255	-645	66-493B-5-2,140-150	53	22.7	0.80	35.59	18780	0.00	4734	738
66-493B	16.3810	-98.9255	-645	66-493B-7-2,140-150	72	28.1	2.01	41.54	19180		6418	739
66-493B	16.3810	-98.9255	-645	66-493B-11-2,140-150	110	10.9	0.80	36.36	19140	0.00	6250	779