Poppe, L J; Commeau, R F; Commeau, J A; Manheim, Frank T; Aruscavage, P J (1984): Annotated record of the detailed examination of Mn micronodules from stations over George Bank, Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.863406, Supplement to: Poppe, LJ et al. (1984): Ferromanganese micronodules from the surficial sediments of Georges Bank. Journal of Marine Research, 42(2), 463-472, https://doi.org/10.1357/002224084788502765
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Abstract:
Ferromanganese micronodules have been found on Georges Bank, off the U.S. northeast coast, distributed throughout the surficial sediments within an area about 125 km long and at least 12 km wide. These coarse, sand-sized concretions have precipitated from metal-rich interstitial waters and contain many of the textural and structural features common to other neritic nodules. Most of the nodules have accreted around detrital grains, and X-ray powder diffraction analyses indicate the presence of geothite and vernadite ( delta -MnO sub(2)) in the ferromanganese layers. Chemical analyses of the micronodules, when compared with similar data on deep-sea manganese nodules, reveal lower Mn/Fe ratios, significantly higher concentrations of V and As, comparable values of Mo, and an order of magnitude less of Co, Ni, Ce and most other, metals.
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: 40.995167 * Median Longitude: -67.080833 * South-bound Latitude: 40.673000 * West-bound Longitude: -67.747000 * North-bound Latitude: 41.233000 * East-bound Longitude: -66.642000
Date/Time Start: 1957-08-28T00:00:00 * Date/Time End: 1965-08-22T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
AB411-2545K * Latitude: 41.225000 * Longitude: -66.642000 * Date/Time: 1965-08-22T00:00:00 * Elevation: -82.0 m * Location: Atlantic Ocean * Campaign: AB4_11 * Basis: Albatross IV (1963) * Method/Device: Dredge (DRG)
AB3101-W167 * Latitude: 41.233000 * Longitude: -66.733000 * Date/Time: 1957-08-28T00:00:00 * Elevation: -82.0 m * Location: Atlantic Ocean * Campaign: AB3_101 * Basis: Albatross III (1948-1959) * Method/Device: Grab (GRAB)
AB3101-W169 * Latitude: 41.083000 * Longitude: -66.733000 * Date/Time: 1957-08-28T00:00:00 * Elevation: -87.0 m * Location: Atlantic Ocean * Campaign: AB3_101 * Basis: Albatross III (1948-1959) * Method/Device: Grab (GRAB)
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):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Poppe, L J | |||
| 2 | Latitude of event | Latitude | Poppe, L J | |||
| 3 | Longitude of event | Longitude | Poppe, L J | |||
| 4 | Elevation of event | Elevation | m | Poppe, L J | ||
| 5 | Method/Device of event | Method/Device | Poppe, L J | |||
| 6 | Identification | ID | Poppe, L J | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Poppe, L J | Geocode | |
| 8 | Position | Position | Poppe, L J | Visual description | ||
| 9 | Deposit type | Deposit type | Poppe, L J | |||
| 10 | Quantity of deposit | Quantity | Poppe, L J | |||
| 11 | Sediment type | Sediment | Poppe, L J | |||
| 12 | Comment | Comment | Poppe, L J | |||
| 13 | Description | Description | Poppe, L J |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
42 data points