Citation:

0016-7037(89)90206-8

Name: (Table 1) Sulfur contents and isotope composition in rocks and minerals from DSDP/ODP Hole 504B
Published: 1989
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook TwitterShow Map Google Earth

Abstract:

DSDP Hole 504B is the only hole in oceanic crust to penetrate through the volcanic section and into hydrothermally altered sheeted dikes. We have carried out petrologic and sulfur isotopic analyses of sulfide and sulfate minerals and whole rocks from the core in order to place constraints on the geochemistry of sulfur during hydrothermal alteration of ocean crust.

The nearly 600 m-thick pillow section has lost sulfur to seawater and has net d34S = -1.8 per mil due to degassing of SO2 during crystallization and subsequent low temperature interaction with seawater. Hydrothermally altered rocks in the 200 m-thick transition zone are enriched in S and 34S (4300 ppm and +3.0 +/-1.2 per mil, respectively), whereas the more than 500 m of sheeted dikes contain 720 ppm S with d34S = +0.6 +/-1.4 per mil. These data are consistent with the presence of predominantly basaltic sulfur in hydrothermal fluids deep in the crust: following precipitation of anhydrite during seawater recharge, small amounts of seawater sulfate were reduced at temperatures >250°C through conversion of igneous pyrrhotite to secondary pyrite and minor oxidation of ferrous iron in the crust. The S- and 34S-enrichments of the transition zone are the results of seawater sulfate reduction and sulfide deposition during subsurface mixing between upwelling hot (up to 350°C) hydrothermal fluids and seawater. Seawater sulfate was probably reduced through oxidation of ferrous iron in hydrothermal fluids and in the transition zone rocks.

Alteration of the upper crust resulted in loss of basaltic sulfur to seawater, fixation of minor seawater sulfur in the crust and redistribution of magmatic sulfur within the crust. This caused net increases in sulfur content and d34S of the upper 1.8 km of the oceanic crust.

Project(s):

Deep Sea Drilling Project (DSDP)

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: 1.227050 * Median Longitude: -83.730250 * South-bound Latitude: 1.226900 * West-bound Longitude: -83.730300 * North-bound Latitude: 1.227200 * East-bound Longitude: -83.730200

Date/Time Start: 1981-11-22T00:00:00 * Date/Time End: 1986-10-16T18:15:00

Minimum DEPTH, sediment/rock: 251.5 m * Maximum DEPTH, sediment/rock: 1275.5 m

Event(s):

83-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time Start: 1981-11-22T00:00:00 * Date/Time End: 1982-01-02T00:00:00 * Elevation: -3460.0 m * Penetration: 1350 m * Recovery: 107.7 m * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: Leg 83 of DSDP was devoted entirely to coring and experiments in Hole 504B, the deepest borehole to date into the oceanic crust. Hole 504B now extends over a kilometer into basement, nearly twice as far as any other DSDP hole, and it is the only DSDP hole to have clearly penetrated into the intrusive sheeted dikes that underlie the extrusive pillow lavas of the upper oceanic crust. At Hole 504B, Leg 83 continued an ongoing DSDP effort that began during Legs 68, 69, and 70 in 1979, and also included part of Leg 92 in 1983. 71 cores; 514 m cored; 0 m drilled; 21 % recovery

111-504B * Latitude: 1.226900 * Longitude: -83.730300 * Date/Time Start: 1986-10-05T11:45:00 * Date/Time End: 1986-10-16T18:15:00 * Elevation: -3474.0 m * Penetration: 1562.1 m * Recovery: 27.36 m * Location: North Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 209 m cored; 0 m drilled; 13.1 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Sample code/label	Sample label		Alt, Jeffrey C	DSDP/ODP/IODP sample designation
4	Rock type	Rock		Alt, Jeffrey C
5	Sample type	Samp type		Alt, Jeffrey C
6	Sulfur, total	TS	%	Alt, Jeffrey C	Coulometric titration	monosulfide
7	Sulfur, total	TS	%	Alt, Jeffrey C	Coulometric titration	pyrite
8	Sulfur, total	TS	%	Alt, Jeffrey C	Coulometric titration	sulfate
9	δ34S, sulfide	δ34S H2S	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	for monosulfide S in bulk rock
10	δ34S, sulfide	δ34S H2S	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	for sphalerite in veins
11	δ34S, sulfide	δ34S H2S	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	for chalcopyrite in veins
12	δ34S, pyrite	δ34S Py	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	in bulk rock
13	δ34S, pyrite	δ34S Py	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	in veins
14	δ34S, sulfate	δ34S [SO4]2-	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	in bulk rock
15	δ34S, sulfate	δ34S [SO4]2-	‰ CDT	Alt, Jeffrey C	Isotope ratio mass spectrometry	for anhydrite in veins

License:

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

Size:

326 data points

Data

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

1 Event	2 Depth sed [m]	3 Sample label (DSDP/ODP/IODP sample designation)	4 Rock	5 Samp type	6 TS [%] (monosulfide, Coulometric titr...)	7 TS [%] (pyrite, Coulometric titration)	8 TS [%] (sulfate, Coulometric titration)	9 δ34S H2S [‰ CDT] (for monosulfide S in bulk roc...)	10 δ34S H2S [‰ CDT] (for sphalerite in veins, Isot...)	11 δ34S H2S [‰ CDT] (for chalcopyrite in veins, Is...)	12 δ34S Py [‰ CDT] (in bulk rock, Isotope ratio m...)	13 δ34S Py [‰ CDT] (in veins, Isotope ratio mass ...)	14 δ34S [SO4]2- [‰ CDT] (in bulk rock, Isotope ratio m...)	15 δ34S [SO4]2- [‰ CDT] (for anhydrite in veins, Isoto...)
111-504B	1071.6	111-504B-141-1,58-61	dike											21.3
111-504B	1071.7	111-504B-141-1,64-66	dike											21.2
111-504B	1082.6	111-504B-142-2,5-8	dike		0.001	0.001					0.4
111-504B	1090.6	111-504B-143-1,128-135	dike	dark grey host rock	0.005	0.060		-0.3			-0.5
111-504B	1090.6	111-504B-143-1,128-135	dike	light grey alteration halo	0.040	0.046		-0.1			0.5
111-504B	1104.6	111-504B-145-1,40-42	dike		0.004	0.025				-0.9	0.2	0.0
111-504B	1128.6	111-504B-147-2,6-10	dike	light grey alteration halo	0.020	0.015	0.007	0.4			0.2
111-504B	1155.6	111-504B-150-1,138-140	dike		0.006	0.017					0.4
111-504B	1162.8	111-504B-152-1,19-25	dike		0.011	0.076	0.057				1.3		19.9
111-504B	1175.5	111-504B-153-1,62-64	dike									0.0		20.4
111-504B	1186.6	111-504B-155-1,33-36	dike		0.014	0.114					0.0
111-504B	1231.0	111-504B-161-1,12-14	dike		0.012	0.023	0.001	0.0			0.0
111-504B	1238.6	111-504B-163-1,115-118	dike		0.007	0.004					-4.9
111-504B	1257.3	111-504B-165-1,13-19	dike		0.008	0.037		-1.0			2.0
111-504B	1275.5	111-504B-169-1,52-55	dike		0.010	0.027					0.2
83-504B	251.5	83-504B-39-2,62-64	pillow		0.040	0.030		-0.7			-1.0
83-504B	397.5	83-504B-49-2,101-103	pillow			0.050					-1.9
83-504B	572.5	83-504B-72-3,142-144	transition zone											21.9
83-504B	587.5	83-504B-74-1,5-8	transition zone		0.016	0.330					1.8
83-504B	587.5	83-504B-74-1,46-49	transition zone											21.4
83-504B	605.5	83-504B-76-1,65-68	transition zone		0.007	0.074	0.028	3.1			1.4		-7.7
83-504B	624.5	83-504B-78-1,102-106	transition zone		0.081	0.750	0.033	1.2			1.1
83-504B	632.5	83-504B-79-2,62-66	transition zone		0.006	0.070	0.007	2.9			4.0
83-504B	635.5	83-504B-80-1,33-37	transition zone		0.115	0.926	0.038	3.4			3.4	3.5	-4.2
83-504B	637.5	83-504B-80-2,63-67	transition zone		0.160	1.610	0.073	4.2			4.0	5.0	-1.6
83-504B	638.5	83-504B-80-2,91-97	transition zone						2.5			3.1
83-504B	638.5	83-504B-80-2,91-97	transition zone									2.5
83-504B	645.5	83-504B-81-1,83-86	transition zone		0.021	0.503	0.026	2.8			2.3		2.6
83-504B	654.5	83-504B-82-1,68-73	transition zone	dark grey host rock	0.005	0.065					2.7
83-504B	654.5	83-504B-82-1,68-73	transition zone	light grey alteration halo	0.054	0.417	0.075	2.9			2.5
83-504B	673.5	83-504B-84-2,36-40	transition zone									5.6
83-504B	673.5	83-504B-84-2,48-50	transition zone			0.386		4.7			4.7
83-504B	693.5	83-504B-87-1,116-123	transition zone		0.002	0.022	0.001				3.8
83-504B	729.5	83-504B-91-1,66-71	transition zone	light grey alteration halo	0.007	0.136	0.014				3.1
83-504B	729.5	83-504B-91-1,66-70	transition zone	dark grey host rock	0.010	0.160	0.081	0.2			1.1		-7.1
83-504B	756.5	83-504B-94-1,132-135	transition zone		0.019	0.297	0.017	3.1	1.0		3.1	2.2
83-504B	783.5	83-504B-97-1,82-84	transition zone	dark grey host rock	0.005	0.097	0.003	2.5			3.8
83-504B	783.5	83-504B-97-1,88-90	transition zone	light grey alteration halo	0.044	0.687		4.2			4.6
83-504B	797.5	83-504B-99-1,70-74	dike		0.002	0.015	0.002				3.4
83-504B	806.5	83-504B-100-1,83-87	dike			0.025					2.7
83-504B	844.5	83-504B-104-2,67-72	dike			0.014	0.094	1.4			2.3		-8.8
83-504B	869.5	83-504B-107-1,90-92	dike		0.003	0.061	0.015				1.1		-5.0
83-504B	887.5	83-504B-111-1,41-45	dike		0.001		0.009				1.1		3.0
83-504B	896.5	83-504B-113-1,47-50	dike		0.001	0.039	0.006				0.1
83-504B	915.5	83-504B-117-1,100-101	dike		0.013	0.053		-0.2			-0.3
83-504B	916.5	83-504B-117-1,109-113	dike		0.002	0.009
83-504B	939.1	83-504B-122-1,4-27	dike											21.5
83-504B	950.5	83-504B-123-2,58-62	dike		0.004	0.007					1.7
83-504B	980.5	83-504B-127-1,109-112	dike		0.010	0.062	0.025	1.4			0.0
83-504B	995.5	83-504B-129-1,33-35	dike		0.002	0.081		-0.3			0.0
83-504B	1021.5	83-504B-132-1,118-122	dike		0.001	0.016	0.001				-0.1
83-504B	1031.5	83-504B-133-2,34-43	dike				0.056						-8.0
83-504B	1038.5	83-504B-134-1,147-150	dike	light grey alteration halo	0.003	0.008	0.006				3.1
83-504B	1038.5	83-504B-134-1,147-150	dike	dark grey host rock	0.001	0.006					2.6
83-504B	1062.5	83-504B-139-1,41-46	dike		0.004	0.039	0.045	0.7			0.5		-5.3