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  • Data  (2)
  • 113-689B; 113-690B; 113-690C; 113-693; 113-694B; 113-694C; 113-695A; 113-696A; 113-696B; 113-697A; 113-697B; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean; Weddell Sea  (2)
  • 1990-1994  (2)
  • 1955-1959
  • 1990  (2)
  • 1959
Collection
  • Data  (2)
Source
Keywords
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Years
  • 1990-1994  (2)
  • 1955-1959
Year
  • 1990  (2)
  • 1959
  • 1
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    Unknown
    Interstitial-water chemistry of ODP Leg 113 sites (1990)
    PANGAEA
    In:  Supplement to: Egeberg, Per Kristian; Aagaard, Per; Smalley, P Craig (1990): Major element and oxygen isotope studies of Interstitial Waters: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 135-146, https://doi.org/10.2973/odp.proc.sr.113.169.1990
    Details
    Publication Date: 2024-01-09
    Description: Variations in the distribution of major elements and stable oxygen isotopes in ODP Leg 113 pore water are not related to lithology and thus appear to be controlled by minor constituents. Petrographic observations and geochemical considerations indicate that alteration of calc-alkalic volcanic material dispersed in the sediment is an important process. A diagenetic reaction is constructed that involves transformation of volcanic glass into smectite, zeolite (represented by phillipsite), chert, and iron sulfide. Mass balance calculations reveal that alteration of less than 10% (volume) of volcanogenic material may account for the observed depletion of magnesium, potassium, and 18O and enrichment of calcium. Alteration of this amount of volcanic glass produces less than 4% (volume) of smectite and zeolite. Hence, mass balance is obtained without having to invoke unreasonable large amounts of volcanic matter or interactions between seawater and basement.
    Keywords: 113-689B; 113-690B; 113-690C; 113-693; 113-694B; 113-694C; 113-695A; 113-696A; 113-696B; 113-697A; 113-697B; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean; Weddell Sea
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Geochemical investigation of ODP Leg 113 sites (1990)
    PANGAEA
    In:  Supplement to: Egeberg, Per Kristian; Abdullah, Mohamed I (1990): The diagenetic factors controlling the dissolved organic carbon (DOC) in pore water from deep sea sediments (ODP Leg 113, Weddell Sea). In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 169-177, https://doi.org/10.2973/odp.proc.sr.113.167.1990
    Details
    Publication Date: 2024-01-09
    Description: Dissolved organic carbon (DOC) was determined in pore water extracted from pelagic and hemipelagic sediments recovered during Leg 113. DOC concentration varied between 1.82 and 13.6 mg C/L which is one to two orders of magnitude less than previously reported for hemipelagic sediments. It is argued that this difference is related to differences in the intensity of degradation of organic matter. As a first approximation it is found that in reducing sediments, the level of DOC is proportional to the intensity of sulfate reduction. It is suggested that DOC is formed by different mechanisms in oxic and reducing environments.
    Keywords: 113-689B; 113-690B; 113-690C; 113-693; 113-694B; 113-694C; 113-695A; 113-696A; 113-696B; 113-697A; 113-697B; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg113; Ocean Drilling Program; ODP; South Atlantic Ocean; Weddell Sea
    Type: Dataset
    Format: application/zip, 7 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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