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  • 1
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    Interstitial water chemistry at DSDP Leg 82 Holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (1985): Interstitial water studies, Central North Atlantic. In: Bougault, H; Cande, SC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 82, 539-542, https://doi.org/10.2973/dsdp.proc.82.131.1985
    Details
    Publication Date: 2023-05-12
    Description: Interstitial waters were collected at only two sites during Leg 82, Sites 558 and 563. Only very small changes in dissolved calcium and magnesium occur, presumably resulting from reactions in the underlying basement basalts. Dissolved strontium profiles indicate maxima, which can be understood in terms of carbonate recrystallization processes. Data on Sr/Ca in carbonates cannot be used to estimate the extent of recrystallization that has occurred in these sediments.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 2
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    Interstitial water chemistry at DSDP Leg 79 Holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (1984): Interstitial water studies, 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, 825-834, https://doi.org/10.2973/dsdp.proc.79.134.1984
    Details
    Publication Date: 2023-05-12
    Description: Interstitial water analyses of samples collected at Sites 544-547 of DSDP Leg 79 are presented. In Site 547 chloride concentrations increase to almost 80% of the halite saturation values. Gypsum occurrences in the sediments immediately overlying the halite deposit can be explained in terms of migration of Ca**2+ and SO2**2- from the underlying evaporites. At shallower depths sulfate concentrations decrease rapidly as a result of sulfate reduction processes. The same processes lead to the removal of calcium in the form of calcium carbonate. At Site 547, the chloride concentration depth profile suggests a maximum of dissolved chloride which may be the result of advective flow from nearby (abput 6 km) evaporite salt diapirs.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
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    (Table 1) Interstitial water chemistry at DSDP Leg 82 Holes
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 82-558; 82-558A; 82-563; Alkalinity, total; Ammonium; Calcium; Chlorine; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg82; Lithium; Longitude of event; Magnesium; North Atlantic/RIDGE; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; Strontium; Sulfate
    Type: Dataset
    Format: text/tab-separated-values, 188 data points
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  • 4
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    (Table 2) Carbonate chemistry at DSDP Site 82-558
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 82-558; 82-558A; Calcium carbonate; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Leg82; Magnesium/Calcium ratio; North Atlantic/RIDGE; Sample code/label; see reference(s); Strontium/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 40 data points
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  • 5
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    Interstitial water chemistry at DSDP Leg 74 Holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (1984): Interstitial water studies, Leg 74. In: Moore, TC Jr; Rabinowitz, PD; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 74, 701-711, https://doi.org/10.2973/dsdp.proc.74.122.1984
    Details
    Publication Date: 2023-06-27
    Description: Interstitial water studies from sites drilled during a transect of the Walvis Ridge indicate that concentration increases in calcium and decreases in magnesium toward and into the basement. These trends can be understood principally in terms of reactions taking place in Layer 2 of the oceanic crust. At Site 525, however, some removal of magnesium occurs within the sediment column. Concentration maxima of dissolved strontium clearly indicate that carbonate recrystallization occurs throughout the carbonate sediments, and studies of the Sr/Ca ratio in carbonates indicate that in chalks and limestones recrystallization is essentially complete. Predictions of dissolved strontium maxima generally fail; this can be understood as removal of strontium in basal sediments and/or basalts.
    Keywords: 74-525; 74-525_Site; 74-525A; 74-525B; 74-526_Site; 74-526A; 74-527; 74-527_Site; 74-528; 74-528_Site; 74-528A; 74-529; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg74; South Atlantic; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 6
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    (Table 1) Interstitial water chemistry at DSDP Leg 74 Holes
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 74-525; 74-525B; 74-526A; 74-527; 74-528; 74-528A; 74-529; Alkalinity, total; Ammonium; Atomic absorption spectrometry (AAS); Calcium; Chlorine; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg74; Lithium; Longitude of event; Magnesium; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; South Atlantic; South Atlantic/CREST; South Atlantic/RIDGE; South Atlantic/SLOPE; Strontium; Sulfate; Titration
    Type: Dataset
    Format: text/tab-separated-values, 1045 data points
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  • 7
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    (Table 2) Carbonate compositions at DSDP Leg 74 Holes
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 74-525A; 74-525B; 74-526A; 74-528; Calcium carbonate; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg74; Longitude of event; Magnesium/Calcium ratio; Sample code/label; see reference(s); South Atlantic/CREST; South Atlantic/RIDGE; Strontium/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 242 data points
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  • 8
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    (Table 1) Chemisity of interstitial water at DSDP Leg 66 holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (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
    Details
    Publication Date: 2023-06-27
    Description: 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.
    Keywords: 66-487; 66-490; 66-491; 66-492; 66-493; 66-493A; 66-493B; Alkalinity, total; Ammonium; Calcium; Chloride; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg66; Longitude of event; Magnesium; North Pacific; North Pacific/SLOPE; North Pacific/TRANSITION ZONE; North Pacific/TRENCH; Sample code/label; Silicon; Sulfate; Titration
    Type: Dataset
    Format: text/tab-separated-values, 532 data points
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  • 9
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    (Table 1) Interstitial water chemistry at DSDP Leg 81 Holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk (1984): Interstitial water studies, Leg 81. In: Roberts, DG; Schnittker, D; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 81, 829-836, https://doi.org/10.2973/dsdp.proc.81.134.1984
    Details
    Publication Date: 2023-06-27
    Description: Interstitial water studies on samples obtained during Leg 81 have revealed substantial changes with depth in dissolved calcium, magnesium, strontium, potassium, and lithium. Calcium and magnesium concentration changes result from alteration reactions, primarily in the basalts and also in the volcanic sediments overlying the basalts. Similarly, depletions in potassium are the result of reactions in volcanic sections of the drill holes. Lithium has its main source in the volcanic sediments. On the other hand, strontium-concentration maxima occur at the ooze-chalk boundary and are the result of carbonate recrystallization reactions. Distinct correlations between calcium gradients and extents of concentration maxima in strontium with sedimentation rates suggest (1) build up of calcium concentrations below diffusion communication depth and (2) increased rates of recrystallization of carbonate with rate of sedimentation. The latter process is probably related to the more "corrosive" character of the sediments as the result of organic carbon diagenesis.
    Keywords: 81-552; 81-552A; 81-553; 81-553A; 81-554; 81-554A; 81-555; Alkalinity, total; Ammonium; Calcium; Chlorine; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg81; Lithium; Longitude of event; Magnesium; North Atlantic/PLATEAU; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; Strontium; Sulfate
    Type: Dataset
    Format: text/tab-separated-values, 587 data points
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  • 10
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    (Table 1) Interstitial water chemistry at DSDP Leg 80 Holes
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Johnston, Kirk (1985): Interstitial water studies, Leg 80. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1047-1053, https://doi.org/10.2973/dsdp.proc.80.149.1985
    Details
    Publication Date: 2023-06-27
    Description: Interstitial water studies of sediments recovered during DSDP Leg 80 (Goban Spur transect) indicate a well-developed dissolved-sulfate minimum at Site 548 resulting from increased sulfate reduction in the rapidly deposited Pleistocene sediment section. Changes in the concentration of dissolved strontium at each site must be related to carbonate recrystallization processes.
    Keywords: 80-548; 80-548A; 80-549; 80-549A; 80-550; 80-551; Alkalinity, total; Ammonium; Calcium; Chlorine; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg80; Lithium; Longitude of event; Magnesium; North Atlantic/ESCARPMENT; North Atlantic/PLAIN; North Atlantic/SPUR; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; Strontium; Sulfate
    Type: Dataset
    Format: text/tab-separated-values, 422 data points
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