Migdisov, Areg A; Gradusov, Boris P; Bredanova, N V; Bezrogova, E V; Saveliev, B V; Smirnova, O N (1983): Major and minor elements in hydrothermal and pelagic sediments at DSDP Leg 70 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.816008, Supplement to: Migdisov, AA et al. (1983): Major and minor elements in hydrothermal and pelagic sediments of the Galapagos Mounds Area, Leg 70, Deep Sea Drilling Project. In: Honnorez, J; Von Herzen, RP; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 70, 277-295, https://doi.org/10.2973/dsdp.proc.70.113.1983
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Abstract:
Interaction between young basaltic crust and seawater near the oceanic speading centers is one of the important processes affecting the chemical composition of the oceanic layer. The formation of metalliferous hydrothermal sediments results from this interaction.
The importance of the interaction between seawater and basalt in determining the chemical composition of pore waters from sediments is well known. The influence of mineral solutions derived from this interaction on ocean water composition and the significant flux of some elements (e.g., Mn) are reported by Lyle (1976), Bogdanov et al. (1979), and others. Metal-rich sediments found in active zones of the ocean basins illustrate the influence of seawater-basalt interaction and its effect on the sedimentary cover in such areas. The role of hydrothermal activity and seawater circulation in basalts with regard to global geochemistry cycles has recently been demonstrated by Edmond, Measures, McDuff, McDuff et al. (1979), and Edmond, Measures, Mangum (1979).
In the area of the Galapagos Spreading Center the interaction of sediments and solutions derived from interaction of seawater and basalt has resulted in the formation of hydrothermal mounds. The mounds are composed of manganese crusts and green clay interbedded and mixed with pelagic nannofossil ooze. These mounds are observed only in areas characterized by high heat flow (Honnorez, et al., 1981) and high hydrothermal activity.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 0.742950 * Median Longitude: -86.158950 * South-bound Latitude: 0.533300 * West-bound Longitude: -86.410000 * North-bound Latitude: 1.613200 * East-bound Longitude: -86.090000
Date/Time Start: 1979-11-20T00:00:00 * Date/Time End: 1979-11-29T00:00:00
Event(s):
70-507C * Latitude: 0.566700 * Longitude: -86.090000 * Date/Time: 1979-11-20T00:00:00 * Elevation: -2710.0 m * Penetration: 29.5 m * Recovery: 9.2 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 43 m cored; 0 m drilled; 21.3 % recovery
70-507D * Latitude: 0.566700 * Longitude: -86.090000 * Date/Time: 1979-11-20T00:00:00 * Elevation: -2689.0 m * Penetration: 38.7 m * Recovery: 36.5 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 38.7 m cored; 0 m drilled; 94.3 % recovery
70-507F * Latitude: 0.566700 * Longitude: -86.090000 * Date/Time: 1979-11-20T00:00:00 * Elevation: -2695.0 m * Penetration: 31.3 m * Recovery: 31 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 31.3 m cored; 0 m drilled; 98.9 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets
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Datasets listed in this publication series
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 7) Average geochemiscal composition of hydrothermal and pelagic sediments (carbonate-free basis) in mounds and off-mounds sedimentary sections, at DSDP Site 70-507. https://doi.org/10.1594/PANGAEA.816149
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 2) Major and minor elements in sediments from DSDP Holes 70-507F, 70-507C, and 70-507H. https://doi.org/10.1594/PANGAEA.816003
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 1) Major and minor elements in sediments from DSDP Hole 70-507D. https://doi.org/10.1594/PANGAEA.816002
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 9) Average geochemical composition of pelagic sediments from low heat-flow areas (carbonate-free basis) at DSDP Holes 70-508 and 70-510. https://doi.org/10.1594/PANGAEA.816152
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 5) Major and minor elements in sediments from DSDP Holes 70-508 and 70-508C. https://doi.org/10.1594/PANGAEA.816006
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 4) Major and minor elements in sediments from DSDP Hole 70-509. https://doi.org/10.1594/PANGAEA.816005
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 8) Average geochemical composition of hydrothermal and pelagic sediments (carbonate-free basis) in mounds and off-mounds sedimentary sections, at DSDP Site 70-509. https://doi.org/10.1594/PANGAEA.816151
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 3) Major and minor elements in sediments from DSDP Hole 70-509B. https://doi.org/10.1594/PANGAEA.816004
- Migdisov, AA; Gradusov, BP; Bredanova, NV et al. (1983): (Table 6) Major and minor elements in sediments from DSDP Hole 70-510. https://doi.org/10.1594/PANGAEA.816007