Citation:

dsdp.proc.78a.116.1984

Name: (Table 1) Interstitial water chemistry at DSDP Leg 78A Holes
Published: 1984
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Studies of interstitial water carried out during Deep Sea Drilling Project Leg 78A (Sites 541, 542, and 543) have revealed that alteration of volcanic material dispersed in the sediments is largely responsible for increased concentrations of dissolved calcium and decreased concentrations of dissolved magnesium and potassium. This conclusion is supported by studies of the 87Sr/86Sr ratio of dissolved strontium, as well as by studies of the oxygen isotopic composition of interstitial waters. At Site 543 a large part of the d18O decrease in the interstitial waters must result from diffusive exchange with underlying basement rocks. Data from studies of interstitial water do not indicate upward advection of fluids at Sites 541 and 542.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: 15.596220 * Median Longitude: -58.692460 * South-bound Latitude: 15.517000 * West-bound Longitude: -58.728300 * North-bound Latitude: 15.712300 * East-bound Longitude: -58.653700

Date/Time Start: 1981-02-13T00:00:00 * Date/Time End: 1981-02-28T00:00:00

Minimum DEPTH, sediment/rock: 8.5 m * Maximum DEPTH, sediment/rock: 450.0 m

Event(s):

78-541 * Latitude: 15.520000 * Longitude: -58.728300 * Date/Time: 1981-02-13T00:00:00 * Elevation: -4940.0 m * Penetration: 459 m * Recovery: 400.6 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 459 m cored; 0 m drilled; 87.3 % recovery

78-542 * Latitude: 15.517000 * Longitude: -58.713300 * Date/Time: 1981-02-21T00:00:00 * Elevation: -5016.0 m * Penetration: 240 m * Recovery: 35.3 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 38 m cored; 0 m drilled; 93 % recovery

78-542A * Latitude: 15.519500 * Longitude: -58.713300 * Date/Time: 1981-02-21T00:00:00 * Elevation: -5016.0 m * Penetration: 325.5 m * Recovery: 73 m * Location: North Atlantic/RIDGE * Campaign: (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 95 m cored; 0 m drilled; 76.8 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	Sample code/label	Sample label		Gieskes, Joris M	DSDP/ODP/IODP sample designation	H indicates wash core
6	Comment	Comment		Gieskes, Joris M
7	Depth, top/min	Depth top	m	Gieskes, Joris M
8	Depth, bottom/max	Depth bot	m	Gieskes, Joris M
9	DEPTH, sediment/rock	Depth sed	m			Geocode – mbsf
10	pH	pH		Gieskes, Joris M	see reference(s)
11	Alkalinity, total	AT	mmol(eq)/l	Gieskes, Joris M	see reference(s)
12	Salinity	Sal		Gieskes, Joris M	see reference(s)	unit is g/kg
13	Calcium	Ca	mmol/l	Gieskes, Joris M	see reference(s)
14	Magnesium	Mg	mmol/l	Gieskes, Joris M	see reference(s)
15	Chlorine	Cl	mg/kg	Gieskes, Joris M	see reference(s)
16	Strontium	Sr	µmol/l	Gieskes, Joris M	see reference(s)
17	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Gieskes, Joris M	see reference(s)
18	Lithium	Li	µmol/l	Gieskes, Joris M	see reference(s)
19	Potassium	K	mmol/l	Gieskes, Joris M	see reference(s)
20	Sulfate	[SO4]2-	mmol/l	Gieskes, Joris M	see reference(s)
21	Ammonium	[NH4]+	µmol/l	Gieskes, Joris M	see reference(s)
22	Silicon	Si	µmol/l	Gieskes, Joris M	see reference(s)
23	δ18O, water	δ18O H2O	‰ SMOW	Gieskes, Joris M	see reference(s)

License:

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

Size:

397 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 Sample label	6 Comment	7 Depth top [m]	8 Depth bot [m]	9 Depth sed [m]	10 pH	11 AT [mmol(eq)/l]	12 Sal	13 Ca [mmol/l]	14 Mg [mmol/l]	15 Cl [mg/kg]	16 Sr [µmol/l]	17 87Sr/86Sr	18 Li [µmol/l]	19 K [mmol/l]	20 [SO4]2- [mmol/l]	21 [NH4]+ [µmol/l]	22 Si [µmol/l]	23 δ18O H2O [‰ SMOW]
78-541	15.5200	-58.7283	-4940	78-541-2-5,140-150				8.5	7.40	2.91	36.6	18.5	40.2	19290	132	0.70852	15.1	11.0	25.9	19	453
78-541	15.5200	-58.7283	-4940	78-541-5-1,140-150				31.0	7.49	1.57	36.0	24.1	36.3	19730	207	0.70832	37.3	9.3		355	375	-0.790
78-541	15.5200	-58.7283	-4940	78-541-P.W.1	in situ			48.5	7.65	2.57	35.5	27.5	32.9	19460								-0.660
78-541	15.5200	-58.7283	-4940	78-541-8-4,140-150				64.0	7.03	1.60	36.6	25.0	31.2	19660	249		22.5	8.4	25.7	199	247
78-541	15.5200	-58.7283	-4940	78-541-P.W.2				95.0	8.94	1.70	33.8	24.7	34.6	17970	220	0.70840	22.5	7.3	23.4	97	118	-0.560
78-541	15.5200	-58.7283	-4940	78-541-13-5,140-150				113.0	7.44	0.73	35.8	26.8	29.1	19530	279	0.70836	22.0	7.4		80	167	-1.710
78-541	15.5200	-58.7283	-4940	78-541-P.W.3				143.5	8.50	1.23	35.8	32.4	29.5	19320	326	0.70834	37.5	4.5	24.8	191	153	-1.080
78-541	15.5200	-58.7283	-4940	78-541-18-4,140-150				159.0	7.69	0.53	35.2	31.5	25.8	19320	326	0.70824	22.0	6.5		301	147	-1.340
78-541	15.5200	-58.7283	-4940	78-541-23-3,140-150				205.0	7.58	0.55	38.0	33.5	25.8	19290	256	0.70841	22.0	5.3		27	164
78-541	15.5200	-58.7283	-4940	78-541-33-4,138-150				301.5	8.03	0.31	34.9	39.3	16.4	19190	407	0.70824	51.4	5.0	25.2	231	149	-1.310
78-541	15.5200	-58.7283	-4940	78-541-38-5,135-150				350.5	8.20	1.05	35.8	41.2	19.2	19270	220	0.70746	37.5	4.4		246	119	?-1.130
78-541	15.5200	-58.7283	-4940	78-541-43-5,135-150				398.5	8.26	1.00	33.6	42.1	18.0	18400	190		60.0	3.9		280	97	-1.840
78-541	15.5200	-58.7283	-4940	78-541-48-4,135-150				450.0	7.00	1.55	35.2	42.9	20.9	18940	166	0.70787	134.9	7.3	24.8	240	443
78-542	15.5170	-58.7133	-5016	78-542-H1-6,0-07		0	88	44.0	7.47	0.99	36.8	12.0	48.5	19510	218	0.70844	22.0	8.7	25.4	135	184
78-542	15.5170	-58.7133	-5016	78-542-H2-3,142-150		88	154	121.0	7.45	0.79	35.2	30.0	29.9	19480	303	0.70836	37.0	7.0	25.7	308	169
78-542	15.5170	-58.7133	-5016	78-542-H3-2,125-135		154	202	178.0	7.90	0.38	36.3	37.0	25.2	19510	355	0.70812	37.0	6.5		125	154
78-542A	15.5195	-58.7133	-5016	78-542A-1-5,125-135				209.0	7.72	0.50	35.8	35.7	28.1	19510	333	0.70803	37.0	5.5		201	147	-1.340
78-542A	15.5195	-58.7133	-5016	78-542A-3-2,140-150				252.0	7.78	0.91	35.2	41.6	27.3	18970	196	0.70746	53.0	4.1		21	147	?-3.590
78-543	15.7123	-58.6537	-5633	78-543-8-4,135-150				312.0	7.82	0.49	34.9	42.9	27.3	19100	204	0.70750	74.0	4.6	25.4	227	117	-2.310
78-543	15.7123	-58.6537	-5633	78-543-2-4,140-150				16.0	7.37	2.69	36.3	13.9	46.1	19480	114	0.70881	15.0	10.6	29.2	38	315	0.000
78-543	15.7123	-58.6537	-5633	78-543-5-3,140-150				43.0	7.60	1.94	36.0	17.4	44.3	19380	113	0.70835	15.0	9.4	31.4	129	182	-0.090
78-543	15.7123	-58.6537	-5633	78-543-9-5,140-150				84.0	7.44	1.79	36.0	24.2	38.4	19340	113	0.70812	15.0	7.6		97	172	-0.062
78-543	15.7123	-58.6537	-5633	78-543-19-4,140-150				178.0	6.55	1.34	35.8	28.7	36.0	19310	112	0.70801	82.0	7.5		149	927	-1.090
78-543	15.7123	-58.6537	-5633	78-543-26-4,140-150				244.0	6.45	1.21	35.8	30.8	40.3	19270	125	0.70877	120.0	7.0	28.9	113	1045	-1.520
78-543	15.7123	-58.6537	-5633	78-543-29-4,140-150				273.0	6.13	0.85	36.0	32.6	39.1	19270	112	0.70820	134.0	7.2		61	1000	-1.970
78-543A	15.7123	-58.6537	-5633	78-543A-2-1,140-150				333.0	6.86	1.46	36.6	32.7	41.9	19390	131	0.70821	105.0	6.9		198	619	-1.630
78-543A	15.7123	-58.6537	-5633	78-543A-7-2,0-10				381.0	7.05	1.49	36.0	41.0	39.2	18900	125		105.0	4.4	25.7	22	257	-3.010
78-543A	15.7123	-58.6537	-5633	78-543A-10-1,37-47				408.0	7.14	1.07	36.3	39.2	39.4	19340	130	0.70795	97.0	5.5	27.8	91	368	-2.410