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Koski, Randolph A; Hein, James R (1981): Mineralogy and geochemistry at DSDP Hole 62-465A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.819787, Supplement to: Koski, RA; Hein, JR (1981): Petrographic and chemical characteristics of pyrite-marcasite mineralization in Hole 465A, southern Hess Rise. In: Thiede, J; Vallier, TL; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 62, 855-862, https://doi.org/10.2973/dsdp.proc.62.141.1981

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Abstract:
Core recovered from Hess Rise contains concentrations of pyrite, marcasite, and barite in the lowermost meter of limestone (Unit II) and in the brecciated upper part of the underlying volcanic basement (Unit HI). Petrographic and chemical data indicate that the sulfide-barite assemblage in the limestone is mainly a product of low-temperature diagenetic processes. The iron-sulfide phases are biogenic and their concentrations mark the diffusion of sea water sulfate through sedimentary horizons containing abundant organic matter and mafic, glassy volcanogenic detritus. There is some evidence, however, that elevated temperatures augmented or intensified the synsedimentary diagenetic process.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 33.820500 * Longitude: 178.919000
Date/Time Start: 1978-08-23T00:00:00 * Date/Time End: 1978-08-23T00:00:00
Event(s):
62-465A * Latitude: 33.820500 * Longitude: 178.919000 * Date/Time: 1978-08-23T00:00:00 * Elevation: -2161.0 m * Penetration: 476 m * Recovery: 98.9 m * Location: North Pacific/CONT RISE * Campaign: Leg62 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 408.5 m cored; 9.5 m drilled; 24.2 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Koski, RA; Hein, JR (1981): (Table 3) Composition of individual iron sulfide grains from DSDP Hole 62-465A. https://doi.org/10.1594/PANGAEA.819786
  2. Koski, RA; Hein, JR (1981): (Table 2) Major and trace elements of sulfide-rich layers from Unit II at DSDP Hole 62-465A. https://doi.org/10.1594/PANGAEA.819785
  3. Koski, RA; Hein, JR (1981): (Table 1) Mineralogy of sulfide-rich zones and adjacent wall rock at DSDP Hole 62-465A. https://doi.org/10.1594/PANGAEA.819784