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  • 1
    Publication Date: 2024-04-06
    Keywords: 128-798B; Calcium/Aluminium ratio; Copper; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Iron/Aluminium ratio; Japan Sea; Joides Resolution; Leg128; Loss on ignition; Magnesium/Aluminium ratio; Magnesium/Calcium ratio; Ocean Drilling Program; ODP; Potassium/Aluminium ratio; Sample code/label; Silicon/Aluminium ratio; Sodium/Aluminium ratio; Titanium/Aluminium ratio; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 165 data points
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  • 2
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    PANGAEA
    In:  Supplement to: Sturz, Anne Aleda; Hanan, Barry B; Emanuele, Guy (1992): Geochemistry of sediments and interstitial waters from Oki Ridge and Kita-Yamato Trough, Japan Sea. In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 605-621, https://doi.org/10.2973/odp.proc.sr.127128-1.161.1992
    Publication Date: 2024-04-06
    Description: Interstitial waters in sediments below 400 (Site 798) and 435 meters below seafloor (Site 799) have chloride concentrations of 516-527 and 501-515 mM, respectively, lower than the 540 mM of the modern-day Japan Sea. The chemical composition of interstitial waters, bulk sediments, clay-size sediment fraction, and carbonate nodules from Oki Ridge (Site 798) and Kita-Yamato Trough (Site 799), Japan Sea, reflect in-situ diagenetic processes superimposed on geochemical signals that may indicate freshening of Miocene local marginal basin waters. Interstitial waters at both sites exhibit changes in chemical composition which coincide with the occurrence of low-porosity and high-bulk density layers composed of dolomite and opal-CT, which impede diffusive communication with the overlying interstitial waters. Based on interstitial water stable isotope evidence and mass-balance calculations of chloride dilution, diagenetic reactions that involve the release of structural bound water from opal-A and/or clay minerals contribute to the observed geochemical signals, but cannot account for all the measured chloride dilution.
    Keywords: 128-798A; 128-798B; 128-798C; 128-799A; 128-799B; DRILL; Drilling/drill rig; Japan Sea; Joides Resolution; Leg128; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 6 datasets
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  • 3
    Publication Date: 2024-04-06
    Keywords: 128-798A; 128-798B; 128-798C; Alkalinity, total; Ammonium; Calcium; Chloride; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Event label; Japan Sea; Joides Resolution; Leg128; Magnesium; Magnesium/Calcium ratio; Manganese; Ocean Drilling Program; ODP; pH; Phosphate; Potassium; Salinity; Silicon dioxide; Strontium; Sulfate
    Type: Dataset
    Format: text/tab-separated-values, 502 data points
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  • 4
    Publication Date: 2024-04-06
    Keywords: 128-799A; 128-799B; Alkalinity, total; Ammonium; Calcium; Chloride; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Event label; Japan Sea; Joides Resolution; Leg128; Lithium; Magnesium; Magnesium/Calcium ratio; Manganese; Ocean Drilling Program; ODP; pH; Phosphate; Potassium; Salinity; Silicon dioxide; Strontium; Sulfate
    Type: Dataset
    Format: text/tab-separated-values, 645 data points
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  • 5
    Publication Date: 2024-04-06
    Keywords: 128-799A; 128-799B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Japan Sea; Joides Resolution; Leg128; Ocean Drilling Program; ODP; Sample code/label; Strontium; Strontium-87/Strontium-86 ratio; δ13C; δ18O; δ Deuterium
    Type: Dataset
    Format: text/tab-separated-values, 44 data points
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  • 6
    Publication Date: 2024-04-06
    Keywords: 128-799A; 128-799B; Calcium/Aluminium ratio; Copper; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Event label; Iron/Aluminium ratio; Japan Sea; Joides Resolution; Leg128; Loss on ignition; Magnesium/Aluminium ratio; Magnesium/Calcium ratio; Ocean Drilling Program; ODP; Potassium/Aluminium ratio; Sample code/label; Silicon/Aluminium ratio; Sodium/Aluminium ratio; Titanium/Aluminium ratio; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 392 data points
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  • 7
    Publication Date: 2024-04-06
    Keywords: 128-799A; Calcium/Aluminium ratio; Copper; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Iron/Aluminium ratio; Japan Sea; Joides Resolution; Leg128; Loss on ignition; Magnesium/Aluminium ratio; Magnesium/Calcium ratio; Ocean Drilling Program; ODP; Potassium/Aluminium ratio; Sample code/label; Silicon/Aluminium ratio; Sodium/Aluminium ratio; Titanium/Aluminium ratio; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 71 data points
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  • 8
    Electronic Resource
    Electronic Resource
    Melbourne, Australia : Blackwell Science Pty
    The @island arc 10 (2001), S. 0 
    ISSN: 1440-1738
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Abstract Isotopic compositions of He, Ne and Ar were measured on Plio–Quaternary alkaline basalts of Marib–Sirwah and Shuqra volcanic fields in Yemen, south-western Arabian Peninsula. Very high 3He/4He isotope ratios were found in olivine phenocrysts of some Quaternary alkaline basalts in both volcanic fields, located on the margin of the dispersed Afar mantle plume, compared with the Afar–Ethiopian province in the center of the mantle plume. This suggests that the Afar mantle plume source may consist of common component (C or focal zone (FOZO)) with variable primordial 3He/4He ratio rather than high μ mantle (HIMU) component. The three component mixing C as the Afar mantle plume, depleted mantle (DM) as upper mantle and lithospheric mantle with a hybrid enriched mantle I–II (EM I–EM II) characteristics may be adequate to explain He–Sr–Nd–Pb isotope variation for the Afar–Arabian Cenozoic volcanics. The occurrence of high 3He/4He ratios in the Marib–Sirwah volcanic field appears to show that the primitive basaltic magma, derived from the margin of the dispersed trous-like Afar mantle plume during 15–0 Ma, was not by contamination of lithospheric and upper mantle materials in comparison with that from the center of the Afar mantle plume as a result of relatively low thermal anomaly.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The origin of the isotopic signature of Indian mid-ocean ridge basalts has remained enigmatic, because the geochemical composition of these basalts is consistent either with pollution from recycled, ancient altered oceanic crust and sediments, or with ancient continental crust or lithosphere. ...
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Macmillan Magazines Ltd.
    Nature 408 (2000), S. 657-659 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Oceanic 'large igneous provinces' (LIPs) are areas of the sea floor where the ocean crust is especially thick —30 km or more. During the plate tectonic process of subduction along island arcs, when sea floor sinks back down into the mantle, LIPs are thought to remain at the surface because ...
    Type of Medium: Electronic Resource
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