Kurnosov, Victor B; Chudaev, Oleg V; Shevchenko, Alla Ya (1983): Geochemistry, minerals and b-parameter at DSDP Leg 70 Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.815436, Supplement to: Kurnosov, VB et al. (1983): Mineralogy and geochemistry of sediments from Galapagos hydrothermal mounds, 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, 225-233, https://doi.org/10.2973/dsdp.proc.70.110.1983
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Abstract:
Clay minerals recovered from the Galapagos hydrothermal mounds (Holes 506C, 507D, and 509B) are mainly iron-rich nontronite-like minerals enriched in potassium. Nontronites from Hole 509B show a distinct tendency to become micaceous toward the lower beds of clay sediments. Mn-crusts consist mainly of todorokite or a mixture of todorokite and nontronite. Minerals of clay and Mnrich sediments in the mounds originated from hydrothermal solutions of uncertain origin. Pelagic oozes from hydrothermal mounds and from areas between mounds (Hole 506D) consist mainly of calcite. In the carbonate beds on or near the hydrothermal mounds an admixture of smectite is often found.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 0.589811 * Median Longitude: -86.098860 * South-bound Latitude: 0.566700 * West-bound Longitude: -86.132200 * North-bound Latitude: 0.607700 * East-bound Longitude: -86.090000
Date/Time Start: 1979-11-15T00:00:00 * Date/Time End: 1979-11-27T00:00:00
Event(s):
70-506C * Latitude: 0.607700 * Longitude: -86.091300 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2710.0 m * Penetration: 31.3 m * Recovery: 29.7 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 31.3 m cored; 0 m drilled; 95 % recovery
70-506D * Latitude: 0.607000 * Longitude: -86.091300 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2707.0 m * Penetration: 31.9 m * Recovery: 29.2 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 31.9 m cored; 0 m drilled; 91.6 % 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
Comment:
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets
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Datasets listed in this publication series
- Kurnosov, VB; Chudaev, OV; Shevchenko, AY (1983): (Table 3) The b-parameter of smectites at DSDP Hole 70-506C. https://doi.org/10.1594/PANGAEA.815434
- Kurnosov, VB; Chudaev, OV; Shevchenko, AY (1983): (Table 1) Mineral composition of sediments at DSDP Leg 70 Holes. https://doi.org/10.1594/PANGAEA.815432
- Kurnosov, VB; Chudaev, OV; Shevchenko, AY (1983): (Table 4) Trace elements at DSDP Leg 70 Holes. https://doi.org/10.1594/PANGAEA.815435
- Kurnosov, VB; Chudaev, OV; Shevchenko, AY (1983): (Table 2) Wet geochemistry at DSDP Leg 70 Holes. https://doi.org/10.1594/PANGAEA.815433