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De Carlo, Eric Heinen (1993): Geochemistry of pore water and sediments from ODP Leg 136 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.804637, Supplement to: De Carlo, EH (1993): Geochemistry of pore water and sediments recovered from Leg 136, Hawaiian Arch. In: Wilkens, RH; Firth, J; Bender, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 136, 77-83, https://doi.org/10.2973/odp.proc.sr.136.206.1993

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Abstract:
During Leg 136 drilling was conducted at two sites in pelagic sediments of the north central Pacific Ocean. In this report, pore-water analyses for major seawater constituents, alkalinity, ammonia, nitrate, phosphate, silica, Ba, Fe, Li, Mn, and Sr are presented. Although concentration gradients are generally weak, resulting from slow sedimentation and concomitant diffusive communication with overlying water, there is evidence of sediment/pore-water interactions, associated sediment diagenesis, and formation of authigenic minerals. Bulk major and trace element compositions of the sediments are consistent with reactions inferred to occur within the sediments and with the lithology and mineralogy. Elemental compositions of the sediments are not strongly affected by diagenesis and are primarily related to the dominant mineralogy. Sediments are typical of deep ocean pelagic settings with a significant contribution from the alteration of volcanic ash and the formation of zeolites. Sedimentary rare earth element patterns also provide evidence of active scavenging processes by Mn and Fe oxide phases in the deeper sediments at Site 842.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 19.338800 * Median Longitude: -159.091267 * South-bound Latitude: 19.336000 * West-bound Longitude: -159.095000 * North-bound Latitude: 19.342000 * East-bound Longitude: -159.088000
Date/Time Start: 1991-03-03T11:15:00 * Date/Time End: 1991-03-18T00:00:00
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. De Carlo, EH (1993): (Table 1) Composition of pore water from ODP Sites 136-842 and 136-843. https://doi.org/10.1594/PANGAEA.804634
  2. De Carlo, EH (1993): (Table 2) Major element composition of sediments from ODP Sites 136-842 and 136-843. https://doi.org/10.1594/PANGAEA.804635
  3. De Carlo, EH (1993): (Table 3) Trace and rare earth element composition of sediments from ODP Sites 136-842 and 136-843. https://doi.org/10.1594/PANGAEA.804636