Agassiz, Alexander (1888): Annotated record of the detailed examination of Mn deposits from The Blake cruises stations [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.848867, Supplement to: Agassiz, A (1888): Three Cruises of the U.S. Coast and Geodetic Survey Steamer "Blake" in the Gulf of Mexico, in the Caribbean Sea and along the Atlantic Coast of the United States, from 1877 to 1880. Bulletin of the Museum of Comparative Zoology of Harvard. Kraus Reprint Corporation, New York, U.S.A., 1, https://archive.org/details/mobot31753003645931
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Published: 1888 (exact date unknown) • DOI registered: 2015-09-27
Abstract:
In this volume, Agassiz gives a detailed account of the results of the cruises of the Coastal Survey Steamer "Blake". The cruises covered the East coast of the United States along with some parts of the Caribbean waters and the Gulf of Mexico. The deep sea formations are described in detail. It is during these cruises that the first nodule from the Blake Plateau was recovered and its mixed nature of both phosphate and manganese deposit was identified.
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: 24.390625 * Median Longitude: -77.918750 * South-bound Latitude: 20.183330 * West-bound Longitude: -83.216670 * North-bound Latitude: 31.950000 * East-bound Longitude: -73.550000
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
BLAKE-41 * Latitude: 23.700000 * Longitude: -83.216670 * Elevation: -1572.0 m * Location: Gulf of Mexico * Campaign: Blake1877-1880 * Basis: USC&GS George S. Blake (1874) * Method/Device: Dredge (DRG)
BLAKE-108 * Latitude: 21.729170 * Longitude: -76.598610 * Elevation: -1817.0 m * Location: Carribean sea * Campaign: Blake1877-1880 * Basis: USC&GS George S. Blake (1874) * Method/Device: Dredge (DRG)
BLAKE-317 * Latitude: 31.950000 * Longitude: -78.309720 * Elevation: -640.0 m * Location: Blake Plateau, Atlantic Ocean * Campaign: Blake1877-1880 * Basis: USC&GS George S. Blake (1874) * 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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Agassiz, Alexander | |||
| 2 | Latitude of event | Latitude | Agassiz, Alexander | |||
| 3 | Longitude of event | Longitude | Agassiz, Alexander | |||
| 4 | Elevation of event | Elevation | m | Agassiz, Alexander | ||
| 5 | Method/Device of event | Method/Device | Agassiz, Alexander | |||
| 6 | Identification | ID | Agassiz, Alexander | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Agassiz, Alexander | Geocode | |
| 8 | Position | Position | Agassiz, Alexander | |||
| 9 | Deposit type | Deposit type | Agassiz, Alexander | |||
| 10 | Quantity of deposit | Quantity | Agassiz, Alexander | |||
| 11 | Size | Size | Agassiz, Alexander | |||
| 12 | Substrate type | Substrate | Agassiz, Alexander | |||
| 13 | Sediment type | Sediment | Agassiz, Alexander | |||
| 14 | Description | Description | Agassiz, Alexander |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
36 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Method/Device | 6 ID | 7 Depth sed [m] | 8 Position | 9 Deposit type | 10 Quantity | 11 Size | 12 Substrate | 13 Sediment | 14 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BLAKE-317 | 31.9500 | -78.3097 | -640 | Dredge | BLAKE-317-1 | 0 | Surface | Phosphatic Mn nodule | 1 | Shark's tooth (2) | Hard ground | Concretion around 2 shark teeth. Whole mass has a breccialike appear. several fragm. cemented by deposits of carb. of lime and mang. peroxide. Mang. infiltrated through whole mass of the concretion; phosph. grains sometimes enclosed in mang. | |
| BLAKE-108 | 21.7292 | -76.5986 | -1817 | Dredge | BLAKE-108-1 | 0 | Surface | Mn staining | 1 | Chalk fragment | Pteropod ooze | Off Nuevitas, Cuba, a fragment of white chalk coated on the surface with streaks of peroxide of manganese. | |
| BLAKE-IV | 20.1833 | -73.5500 | -1400 | Dredge | BLAKE-IV-1 | 0 | Surface | Mn nodule | Several | Small, up to 5.0 cm | Foraminifera concretion | Ooze | Off the north coast of San Domingo were obtained several small manganese nod. The interior were of a light brownish color, composed in all cases chiefly of a mass of pelagic Forams. The largest of these nodules had a diameter of ab. 2 in. |
| BLAKE-IV | 20.1833 | -73.5500 | -1400 | Dredge | BLAKE-IV-2 | 0 | Surface | Mn coating | Few | Coral | Ooze | Off the north coast of San Domingo were obtained few fragments of a Corallium coated with manganese. | |
| BLAKE-41 | 23.7000 | -83.2167 | -1572 | Dredge | BLAKE-41-1 | 0 | Surface | Mn coating | Several | Chalk concretion | Pteropod ooze | A white chalky Pteropod ooze, granular with several hard chalky concretions, which are perforated by worms and in parts showing deposits of manganese. |