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  • Forschungsdaten  (3)
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  • 1
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Elderfield, Henry; Lawrence, James R; LaKind, Judy (1984): Interstitial water studies, Leg 78A. In: Biju-Duval, B; Moore, JC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 78A, 377-384, https://doi.org/10.2973/dsdp.proc.78a.116.1984
    Publikationsdatum: 2023-06-27
    Beschreibung: 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.
    Schlagwort(e): 78-541; 78-542; 78-542A; 78-543; 78-543A; Alkalinity, total; Ammonium; Calcium; Chlorine; Comment; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg78; Leg78AB; Lithium; Longitude of event; Magnesium; North Atlantic/CONT RISE; North Atlantic/RIDGE; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; Strontium; Strontium-87/Strontium-86 ratio; Sulfate; δ18O, water
    Materialart: Dataset
    Format: text/tab-separated-values, 397 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Sirocky, Frank X; LaKind, Judy (1984): Interstitial water studies, Leg 73. In: Hsü, KJ; LaBrecque, JL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 73, 539-541, https://doi.org/10.2973/dsdp.proc.73.119.1984
    Publikationsdatum: 2023-06-27
    Beschreibung: Interstitial waters obtained from a transect east from the Mid-Atlantic Ridge on progressively older oceanic crust (Sites 519-522) indicate a general absence of concentration gradients in calcium and magnesium. The lack of gradients indicates little or no exchange of these seawater constituents with the underlying basalts. Only at Site 520, where there are increases in calcium and decreases in magnesium, do reactions in the silica-enriched zone appear to have affected interstitial water composition. At Site 524, on the eastern flank of the Walvis Ridge, large changes in calcium and magnesium occur as a result of reactions involving the volcanic materials that are both dispersed in the sediment column and present in the underlying basalts.
    Schlagwort(e): 73-519; 73-520; 73-521; 73-521A; 73-522; 73-523; 73-524; Alkalinity, total; Ammonium; Calcium; Chlorine; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg73; Lithium; Longitude of event; Magnesium; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; South Atlantic/CANYON; South Atlantic/HILL; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/VALLEY; Strontium; Sulfate
    Materialart: Dataset
    Format: text/tab-separated-values, 225 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Gieskes, Joris M; Sirocky, Frank X; LaKind, Judy (1983): Interstitial water studies, Leg 72. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 391-394, https://doi.org/10.2973/dsdp.proc.72.109.1983
    Publikationsdatum: 2023-06-27
    Beschreibung: Interstitial waters collected at Sites 515 and 516 during DSDP Leg 72 have been analyzed for major and minor constituents. At both sites increases in dissolved calcium and decreases in dissolved magnesium with depth imply reactions in the sediment column involving these constituents. It is suggested that these concentration changes are related to reactions involving biogenic silica transformation.
    Schlagwort(e): 72-515; 72-515B; 72-516A; 72-516F; 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; Leg72; Lithium; Longitude of event; Magnesium; pH; Potassium; Salinity; Sample code/label; see reference(s); Silicon; South Atlantic/BASIN; South Atlantic/CONT RISE; Strontium; Sulfate
    Materialart: Dataset
    Format: text/tab-separated-values, 286 data points
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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