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  • 1
    Publication Date: 2024-01-09
    Keywords: 168-1026A; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Mass spectrometer VG SIRA 10; Ocean Drilling Program; ODP; Sample code/label; Sample comment; Sulfate; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Expected Availability
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  • 2
    Publication Date: 2024-01-09
    Keywords: 168-1026C; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Mass spectrometer VG SIRA 10; Ocean Drilling Program; ODP; Sample code/label; Sample comment; Sulfate; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 45 data points
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  • 3
    Publication Date: 2024-01-09
    Keywords: 168-1025A; 168-1025B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Mass spectrometer VG SIRA 10; Ocean Drilling Program; ODP; Sample code/label; Sulfate; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 49 data points
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  • 4
    Publication Date: 2024-01-09
    Keywords: 168-1023A; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Mass spectrometer VG SIRA 10; Ocean Drilling Program; ODP; Sample code/label; Sample comment; Sulfate; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 81 data points
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  • 5
    Publication Date: 2024-01-09
    Keywords: 168-1028A; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Mass spectrometer VG SIRA 10; Ocean Drilling Program; ODP; Sample code/label; Sample comment; Sulfate; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 66 data points
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  • 6
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    PANGAEA
    In:  Supplement to: Haruzi, Peleg; Katsman, Regina; Halisch, Matthias; Waldmann, Nicolas D; Spiro, Baruch (2021): Benchmark study using a multi-scale, multi-methodological approach for the petrophysical characterization of reservoir sandstones. Solid Earth, 12(3), 665-689, https://doi.org/10.5194/se-12-665-2021
    Publication Date: 2024-01-03
    Description: Petrophysical measurements of samples extracted from 3 consecutive sandstone layers from an outcrop, in lower Cretaceous sandstone from North of Israel. The data includes: Grain size distribution, mercury intrusion porosimetry, XRD, porosity and permeability, micro-CT images. Further description in read_me file.
    Keywords: File format; File name; File size; micro-CT; MULT; Multiple investigations; North_Israel; permeability; Petrophysics; pore-scale modelling; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
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  • 7
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    PANGAEA
    In:  Supplement to: Rudnicki, Mark D; Elderfield, Henry; Spiro, Baruch (2001): Fractionation of sulfur isotopes during bacterial sulfate reduction in deep ocean sediments at elevated temperatures. Geochimica et Cosmochimica Acta, 65(5), 777-789, https://doi.org/10.1016/S0016-7037(00)00579-2
    Publication Date: 2024-01-09
    Description: A numerical model of sulfate reduction and isotopic fractionation has been applied to pore fluid SO4**2- and d34S data from four sites drilled during Ocean Drilling Program (ODP) Leg 168 in the Cascadia Basin at 48°N, where basement temperatures reach up to 62°C. There is a source of sulfate both at the top and the bottom of the sediment column due to the presence of basement fluid flow, which promotes bacterial sulfate reduction below the sulfate minimum zone at elevated temperatures. Pore fluid d34S data show the highest values (135 per mil) yet found in the marine environment. The bacterial sulfur isotopic fractionation factor, a, is severely underestimated if the pore fluids of anoxic marine sediments are assumed to be closed systems and Rayleigh fractionation plots yield erroneous values for a by as much as 15 per mil in diffusive and advective pore fluid regimes. Model results are consistent with a = 1.077+/-0.007 with no temperature effect over the range 1.8 to 62°C and no effect of sulfate reduction rate over the range 2 to 10 pmol/ccm/day. The reason for this large isotopic fractionation is unknown, but one difference with previous studies is the very low sulfate reduction rates recorded, about two orders of magnitude lower than literature values that are in the range of µmol/ccm/day to tens of nmol/ccm/day. In general, the greatest 34S depletions are associated with the lowest sulfate reduction rates and vice versa, and it is possible that such extreme fractionation is a characteristic of open systems with low sulfate reduction rates.
    Keywords: 168-1023A; 168-1025A; 168-1025B; 168-1026A; 168-1026C; 168-1028A; DRILL; Drilling/drill rig; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 8
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    PANGAEA
    In:  Supplement to: Elderfield, Henry; Wheat, C Geoffrey; Mottl, Michael J; Monnin, Christophe; Spiro, Baruch (1999): Fluid and geochemical transport through oceanic crust: a transect across the eastern flank of the Juan de Fuca Ridge. Earth and Planetary Science Letters, 172(1-2), 151-165, https://doi.org/10.1016/S0012-821X(99)00191-0
    Publication Date: 2024-01-09
    Description: The geochemical implications of thermally driven flow of seawater through oceanic crust on the mid-ocean ridge flank have been examined on a well-studied 80 km transect across the eastern flank of the Juan de Fuca Ridge at 48°N, using porewater and basement fluid samples obtained on ODP Leg 168. Fluid flow is recognised by near-basement reversals in porewater concentration gradients from altered values in the sediment section to seawater-like values in basaltic basement. In general, the basement fluids become more geochemically evolved with distance from the ridge and broadly follow basement temperature which ranges from not, vert, similar16° to 63°C. Although thermal effects of advective heat exchange are only seen within 20 km east of where basement is exposed near the ridge crest, chemical reactivity extends to all sites. Seawater passing through oceanic crust has reacted with basement rocks leading to increases in Ca2+ and decreases in alkalinity, Mg2+, Na+, K+, SO42- and delta18O. Sr isotope exchange between seawater and oceanic crust off axis is unequivocally demonstrated with endmember 87Sr/86Sr ~ 0.707. Evidence of more evolved fluids is seen at sites where rapid upwelling of fluids through sediments occurs. Chlorinities of the basement fluids are consistent with post-glacial seawater and thus a short residence time in the crust. Rates of lateral flow have been by estimated by modelling porewater sulphate gradients, using Cl as a glacial chronometer, and from radiocarbon dating of basal fluids. All three methods reveal fluid flow with 14C ages less than 10,000 yr and particle velocities of ~1-5 m/yr, in agreement with thermally constrained volumetric flow rates through a ~600 m thick permeable layer of ~10% porosity. Delta(element)/Delta(heat) extraction ratios are similar to values for ridge-crest hydrothermal systems.
    Keywords: 168-1023; 168-1024; 168-1025; 168-1026; 168-1027; 168-1028; 168-1029; 168-1030; 168-1031; 168-1032; COMPCORE; Composite Core; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Leg168; North Pacific Ocean; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 9
    Publication Date: 2024-01-09
    Keywords: 168-1023; 168-1024; 168-1025; 168-1026; 168-1027; 168-1028; 168-1029; 168-1030; 168-1031; 168-1032; AGE; Alkalinity, total; Calcium; Chloride; Comment; COMPCORE; Composite Core; DEPTH, sediment/rock; Distance; Elevation of event; Event label; Heat flow; Joides Resolution; Juan de Fuca Ridge, North Pacific Ocean; Latitude of event; Leg168; Longitude of event; Magnesium; North Pacific Ocean; Ocean Drilling Program; ODP; pH; Potassium; Sediment thickness; Sodium; Strontium-87/Strontium-86 ratio; Sulfate; Temperature, in rock/sediment; δ18O, water
    Type: Dataset
    Format: text/tab-separated-values, 164 data points
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  • 10
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    PANGAEA
    In:  Supplement to: Mukhopadhyay, Prasanta K; Spiro, Baruch; Rullkötter, Jürgen (1984): An inertinite-rich coal lenticle in Triassic sediment of sample 547B-35, CC, Deep Sea Drilling Project Leg 79. In: Hinz, K; Winterer, EL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 79, 493-495, https://doi.org/10.2973/dsdp.proc.79.115.1984
    Publication Date: 2024-01-19
    Description: A lenticle of organic matter in a piece of dolomite rock embedded in Triassic sandy mudstone of Core 547B-35 (DSDP Leg 79) was identified as inertinite-rich coal by organic petrography and analytical pyrolysis. About 95% of the organic matter recognized under the microscope consists of pyrofusinite, degradofusinite, and inertodetrinite. Gaseous hydrocarbons evolved during pyrolysis are rich in methane and are characteristic of inertinitic material. The organic matter is suggested to be a piece of redeposited Permian Gondwana coal.
    Keywords: 79-547B; Carbon, organic, total; Deep Sea Drilling Project; Degradofusinite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Humic compounds; Hydrogen index, mass HC, per unit mass total organic carbon; Inertodetrinite; Leg79; Liptinite; Lithology/composition/facies; Microscopy; North Atlantic/PLATEAU; Oxygen index, mass CO2, per unit mass total organic carbon; Pyrofusinite; Rock eval pyrolysis (Espitalié et al. 1977); Sample code/label; Vitrinite reflection
    Type: Dataset
    Format: text/tab-separated-values, 33 data points
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