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Gillis, Kathryn M; Smith, Alan D; Ludden, John N (1990): Chemistry of hydrothermal clasy and sulfides of ODP Site 106-649 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.745435, Supplement to: Gillis, KM et al. (1990): Trace element and sr-isotopic contents of hydrothermal clays and sulfides from the Snake Pit hydrothermal field: ODP Site 649. In: Detrick, R; Honnorez, J; Bryan, WB; Juteau, T; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 106/109, 315-319, https://doi.org/10.2973/odp.proc.sr.106109.164.1990

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Abstract:
Several meters of unconsolidated hydrothermal sediment were recovered from the Snake Pit hydrothermal field during ODP Leg 106. Polymetallic sulfides comprise most of the sediment with minor fragments of massive sulfide, organic debris, clay minerals, and fresh glass shards. Trace element and Sr-isotope contents of hydrothermal clays and sulfides from Holes 649B and 649G indicate that these minerals precipitated from a mixed hydrothermal fluid-seawater solution. Evaluation of the REE mineral data and the Snake Pit hydrothermal fluids shows that the REE distribution coefficients between the hydrothermal fluids and clay-sulfide mixes range from 100-500. This indicates that hydrothermal fluids originating in the root-zone of the Snake Pit hydrothermal system may be modified by the precipitation of hydrothermal minerals, either in the shallow subsurface or within chimney structures. Contrasting REE profiles of clay-sulfide aggregates and massive sulfides from Holes 649B and 649G may be accounted for by spatial and/or temporal variations in redox conditions in the plumbing system.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 23.369150 * Median Longitude: -44.950950 * South-bound Latitude: 23.369000 * West-bound Longitude: -44.951200 * North-bound Latitude: 23.369300 * East-bound Longitude: -44.950700
Date/Time Start: 1985-12-14T17:29:00 * Date/Time End: 1985-12-17T17:45:00
Event(s):
106-649B * Latitude: 23.369000 * Longitude: -44.950700 * Date/Time Start: 1985-12-14T17:29:00 * Date/Time End: 1985-12-14T20:50:00 * Elevation: -3528.0 m * Penetration: 6.5 m * Recovery: 6 m * Location: South Atlantic Ocean * Campaign: Leg106 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 core; 6.5 m cored; 0 m drilled; 92.3 % recovery
106-649G * Latitude: 23.369300 * Longitude: -44.951200 * Date/Time Start: 1985-12-17T00:00:00 * Date/Time End: 1985-12-17T17:45:00 * Elevation: -3519.0 m * Penetration: 9 m * Recovery: 0.25 m * Location: South Atlantic Ocean * Campaign: Leg106 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 core; 9 m cored; 0 m drilled; 2.8 % 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. Gillis, KM; Smith, AD; Ludden, JN (1990): (Table 1) Mineralogy of ODP Site 106-649. https://doi.org/10.1594/PANGAEA.745430
  2. Gillis, KM; Smith, AD; Ludden, JN (1990): (Table 3) REE contents of hydrothermal clays and sulfides of ODP Site 106-649. https://doi.org/10.1594/PANGAEA.745433
  3. Gillis, KM; Smith, AD; Ludden, JN (1990): (Table 2) Trace element contents and 87Sr/85Sr ratios of ODP Site 106-649. https://doi.org/10.1594/PANGAEA.745431