Lonsdale, Peter; Burns, Virginia Mee; Fisk, Mary B (1980): Geochemistry of nodules from a young seamount [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.860453, Supplement to: Lonsdale, P et al. (1980): Nodules of Hydrothermal Birnessite in the Caldera of a Young Seamount on JSTOR. The Journal of Geology, 88(5), 611-618, http://www.jstor.org/stable/30066087
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Published: 1980 (exact date unknown) • DOI registered: 2016-06-12
Abstract:
Manganese nodules made of radiating rods of well crystallized birnessite were sampled at 8 degree 481.2'N, 103 degree 53.8W, 1875 m below sea level by a dredge that also collected hyaloclastite and basaltic talus. The nodule field is on the floor of a caldera within a young tholeiitic seamount and was discovered and photographed during a deep-two survey. It is interpreted as a brecciated hydrothermal deposit, crystallized from an amorphous manganese oxide precipitate that formed when seawater-based hydrothermal fluids mixed with oxidized seawater. The nodules and surrounding igneous rocks have subsequently been encrusted with hydrogenous ferromanganese oxides.
Source:
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Project(s):
Coverage:
Median Latitude: 8.850156 * Median Longitude: -104.297644 * South-bound Latitude: 8.146985 * West-bound Longitude: -105.200300 * North-bound Latitude: 9.306320 * East-bound Longitude: -103.893330
Date/Time Start: 1964-07-06T00:00:00 * Date/Time End: 1977-10-15T00:00:00
Event(s):
DPSN02-D3 * Latitude: 9.259390 * Longitude: -105.177470 * Elevation: -3149.0 m * Location: Pacific Ocean * Campaign: DEEPSONDE * Basis: Thomas Washington * Method/Device: Dredge (DRG)
DPSN02-D4 * Latitude: 9.248730 * Longitude: -105.008200 * Elevation: -3100.0 m * Location: Pacific Ocean * Campaign: DEEPSONDE * Basis: Thomas Washington * Method/Device: Dredge (DRG)
DPSN02-D5 * Latitude: 9.306320 * Longitude: -105.200300 * Elevation: -3174.0 m * Location: Pacific Ocean * Campaign: DEEPSONDE * Basis: Thomas Washington * Method/Device: Dredge (DRG)
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:
2 datasets
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Datasets listed in this publication series
- Lonsdale, P; Burns, VM; Fisk, MB (1980): (Table 1, Page 612) XES Analyses for transition metals in manganese nodules and crusts of areas of the East Pacific Rise. https://doi.org/10.1594/PANGAEA.860450
- Lonsdale, P; Burns, VM; Fisk, MB (1980): (Table 3, Page 616) Microprobe Analyses of Birnessite from Nodules on East Seamount. https://doi.org/10.1594/PANGAEA.860452