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  • 1
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    Chemistry of interstitial water of samples from DSDP Leg 38
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Lawrence, James R; Galleisky, Guntwin (1976): Interstitial water studies, Leg 38. In: Talwani, M., Udintsev, G., et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Printing Office), 38, 121-133, https://doi.org/10.2973/dsdp.proc.38394041s.112.1978
    Details
    Publication Date: 2023-06-27
    Description: Interstitial waters recovered during Leg 38 show large changes in major ion composition and also in oxygen isotope composition. Increases in Ca[++] and Sr[++] and decreases in K[+], Mg[++], and O18/O16 are interpreted in terms of extensive diagenesis of terrigenous, volcanic, or basaltic igneous materials in the sediments and underlying basalts. Slight, but well-established increases in chlorinity with depth indicate that these postulated weathering reactions involve uptake of water to a measurable extent. Interstitial waters from sites drilled on the Inner Voring Plateau suggest the infusion of fresh waters by aquifers from the mainland of Norway.
    Keywords: 38-336; 38-337; 38-338; 38-339; 38-340; 38-341; 38-342; 38-343; 38-344; 38-345; 38-346; 38-348; 38-349; 38-350; 38-352_Site; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg38; North Atlantic/Greenland Sea/RIDGE; North Atlantic/Norwegian Sea; North Atlantic/Norwegian Sea/BASIN; North Atlantic/Norwegian Sea/DIAPIR; North Atlantic/Norwegian Sea/PLATEAU; North Atlantic/Norwegian Sea/RIDGE; North Atlantic/RIDGE
    Type: Dataset
    Format: application/zip, 16 datasets
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  • 2
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    (Table 2) 87Sr/86Sr ratios of DSDP Site 38-336 samples
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Lawrence, James R; Perry, Jr, Edward A; Grady, S J; Elderfield, Henry (1987): Chemistry of interstitial waters and sediments in the Norwegian-Greenland Sea, Deep Sea Drilling Project Leg 38. Chemical Geology, 63(1-2), 143-155, https://doi.org/10.1016/0009-2541(87)90081-7
    Details
    Publication Date: 2023-06-27
    Description: Interstitial waters of several sites drilled during the Deep Sea Drilling Project in the Norwegian-Greenland Sea during Leg 38 have revealed substantial changes in dissolved constituents and in the 18O/16O composition of interstitial waters. Studies of the chemical composition of the bulk sediments and their 〈1µm fraction indicate the presence of large amounts of volcanic ash, especially in sites close to Iceland. The presence of authigenic clay minerals (illite/smectite) suggests that alteration of this volcanic ash is an important process. A study of Site 348 reveals that dissolved Ca gradients are caused mainly by transport from the underlying basalts, but that decreases in Mg and d18O (H2O) are largely due to reactions involving alteration of volcanic ash in the sediments. Studies of 87Sr/86Sr distributions of dissolved Sr confirm this process in those sites with high contents of volcanic matter. On the other hand, in sites where the chemical composition of dissolved constituents has been little influenced by alteration reactions. 87Sr/86Sr ratios reveal complete diffusive exchange with present-day seawater.
    Keywords: 38-336; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg38; North Atlantic/Norwegian Sea; Sample code/label; Sample type; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error
    Type: Dataset
    Format: text/tab-separated-values, 52 data points
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  • 3
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    Isotopic analyses of DSDP Hole 45-395A samples from veins containing gypsum (Table 1)
    PANGAEA
    In:  Supplement to: Drever, James I; Lawrence, James R; Antweiler, Ronald C (1979): Gypsium and halite from the Mid-Atlantic Ridge, DSDP Site 395. Earth and Planetary Science Letters, 42(1), 98-102, https://doi.org/10.1016/0012-821X(79)90193-6
    Details
    Publication Date: 2023-06-27
    Description: Gypsum and halite crystals, together with saponite and phillipsite, were found in a vein in a basalt sill 625 m below the sea floor at DSDP Site 395A, located 190 km west of the crest of the Mid-Atlantic Ridge. The delta34S value of the gypsum (+19.4‰) indicates a seawater source for the sulfate. The delta18O values of the saponite (+19.9‰) and phillipsite (+18.1‰) indicate either formation from normal seawater at about 55°C or formation from delta18O-depleted seawater at a lower temperature. The gypsum (which could be secondary after anhydrite) was formed by reaction between Ca[2+] released from basalt and SO4[2-] in circulating seawater. The halite could have formed when water was consumed by hydration of basalt under conditions of extremely restricted circulation. A more probable mechanism is that the gypsum was originally precipitated as anhydrite at temperatures above 60°C. As the temperature dropped the anhydrite converted to gypsum. The conversion would consume water, which could cause halite precipitation, and would cause an increase in the volume of solids, which would plug the vein and prevent subsequent dissolution of the halite.
    Keywords: 45-395A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg45; Minerals; Sample code/label; δ18O; δ34S
    Type: Dataset
    Format: text/tab-separated-values, 10 data points
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  • 4
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    (Table 1) Oxygen isotope temperatures from hydrothermally altered breccias at DSDP Hole 60-453
    PANGAEA
    In:  Supplement to: Lawrence, James R; Natland, James H (1982): Temperatures of hydrothermal alteration in Deep Sea Drilling Project Hole 453, western Mariana Trough. In: Hussong, DM; Uyeda, S; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 60, 755-758, https://doi.org/10.2973/dsdp.proc.60.143.1982
    Details
    Publication Date: 2023-06-27
    Description: Gabbro-metabasalt polymict breccias cored in Deep Sea Drilling Project Hole 453 are cemented in part by hydrothermal alteration to lower greenschist facies (chlorite-epidote-actinolite) mineral assemblages. Temperature estimates for this alteration, based on oxygen isotope determinations of secondary minerals, are nearly 100°C at the top of the breccias and over 200°C in a zone of intense alteration near the base.
    Keywords: 60-453; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Identification; Leg60; Mineral name; North Pacific/SEDIMENT POND; Sample code/label; see comment; Temperature, calculated; δ18O; δ18O, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 16 data points
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  • 5
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    (Table 1) Chemical composition of the carbonate-free fraction of dry bulk sediments from DSDP Hole 149
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 15-149; Aluminium oxide; Calcium carbonate; Calcium oxide; Caribbean Sea/BASIN; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Iron oxide, Fe2O3; Leg15; Loss on ignition; Magnesium oxide; Manganese oxide; Phosphorus pentoxide; Potassium oxide; Sample code/label; Silicon dioxide; Sodium oxide; Titanium dioxide; X-ray emission spectroscopy (XES)
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
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  • 6
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    (Table 2) Oxygen isotope compositions of grain size fractions and bulk sediments from DSDP Hole 35-323
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 35-323; Antarctic Ocean/PLAIN; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg35; Sample code/label; Sample comment; δ18O; δ18O, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 134 data points
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  • 7
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    (Table 2) Oxygen and carbon isotope compositions of authigenic calcite veins in sediments and basalts and secondary vein-filling minerals in basalts from DSDP Hole 35-323
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 35-323; Antarctic Ocean/PLAIN; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg35; Sample code/label; Sample code/label 2; Sample type; δ13C; δ18O; δ18O, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 165 data points
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  • 8
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    (Table 2) Oxygen isotope composition of pore fluids from sediments of DSDP Hole 35-323
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 35-323; Antarctic Ocean/PLAIN; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg35; Sample code/label; δ18O; δ18O, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 39 data points
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  • 9
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    (Table 3) Strontium isotope data for DSDP Hole 35-323
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 35-323; Antarctic Ocean/PLAIN; Calculated; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Isotope ratio mass spectrometry; Leg35; Sample code/label; Sample type; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, error
    Type: Dataset
    Format: text/tab-separated-values, 28 data points
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  • 10
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    (Appendix 1) Chemical composition of interstitial waters from sediments of DSDP Hole 26-252
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 26-252; Alkalinity, total; Atomic absorption spectrometry (AAS); Calcium; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Indian Ocean//BASIN; Leg26; Magnesium; Sample code/label; Strontium; Sulfate; Titration; Titration complexometric; Titration potentiometric
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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