Poppe, L J (1985): (Table 1, page 129) Chemical composition of ferromanganese coating on glacial erratics from Lydonia Canyon [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855687, Supplement to: Poppe, L J; O'Leary, D W; Commeau, R F (1985): Composition and morphology of ferromanganese coatings on glacial erratics in Lydonia Canyon, United States East Coast. Geo-Marine Letters, 5(2), 127-133, https://doi.org/10.1007/BF02233938
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Abstract:
Ferromanganese coatings have been found on glacial erratics in Lydonia Canyon, off the United States northeastern coast. The coatings, which are about 17 µm thick, consist of an outer manganese-rich layer which covers the top of the erratic, a middle transitional layer, and an internal iron-rich layer that encircles the entire surface of the erratic. Chemical analyses of the coatings, when compared with similar data on abyssal marine ferromanganese deposits, reveal comparable Mn/Fe ratios, higher P and Ti concentrations, and an order of magnitude less of Co, Ni, Cu, and most other metals. A comparison of the Lydonia Canyon coatings with desert varnishes reveals obvious chemical, mineralogical, and morphological differences.
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: 40.250000 * Median Longitude: -67.638667 * South-bound Latitude: 40.183333 * West-bound Longitude: -67.666000 * North-bound Latitude: 40.350000 * East-bound Longitude: -67.616667
Date/Time Start: 1982-09-12T00:00:00 * Date/Time End: 1982-09-19T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
ALV-1264 * Latitude: 40.183333 * Longitude: -67.633333 * Date/Time: 1982-09-12T00:00:00 * Elevation: -2207.0 m * Location: Lydonia Canyon, Atlantic Ocean * Campaign: ALV82 * Basis: Alvin * Method/Device: Grab (GRAB) * Comment: Institute: WHOI
ALV-1268 * Latitude: 40.216667 * Longitude: -67.616667 * Date/Time: 1982-09-16T00:00:00 * Elevation: -2003.0 m * Location: Lydonia Canyon, Atlantic Ocean * Campaign: ALV82 * Basis: Alvin * Method/Device: Grab (GRAB) * Comment: Institute: WHOI
ALV-1270 * Latitude: 40.350000 * Longitude: -67.666000 * Date/Time: 1982-09-19T00:00:00 * Elevation: -942.0 m * Location: Lydonia Canyon, Atlantic Ocean * Campaign: ALV82 * Basis: Alvin * Method/Device: Grab (GRAB) * Comment: Institute: WHOI
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.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
51 data points