Lalou, Claude; Brichet, Evelyne; Poupeau, G; Romary, P; Jehanno, Celestine (1979): Growth rates and possible age of a North Pacific manganese nodule [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.867155
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Abstract:
The rate of accumulation of a ferromanganese coating on a fragment of pillow basalt was estimated using a variety of techniques. Unsupported 230 Th activity decrease in the oxide layer, K/A dating of the basalt, fission tracks dating of the glassy layer around the basalt, thickness of the palagonitization rind, and integrated 230 Th activity give ages from approximately 3 x 10-6 years to 5 x 10-3 years. Data suggest that the ferromanganese material formed rapidly (33 mm/10-6 years) and by hydrothermal or volcanic processes.
Related to:
Lalou, Claude; Brichet, Evelyne; Poupeau, G; Romary, P; Jehanno, Celestine (1979): Growth rates and possible age of a North Pacific manganese nodule. in: Bischoff, J.L., Piper, D.Z. (Eds.), Marine Geology and Oceanography of the Pacific Manganese Nodule Province, Marine Science. Plenum Publishing Corporation, New York, U.S.A., 815-834, https://doi.org/10.1007/978-1-4684-3518-4_27
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:
Latitude: 9.259390 * Longitude: -105.177470
Minimum Elevation: -3149.0 m * Maximum Elevation: -3149.0 m
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)
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | Sample ID | Sample ID | Lalou, Claude | |||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Lalou, Claude | Geocode | |
| 6 | DISTANCE | Distance | cm | Lalou, Claude | Geocode | |
| 7 | Distance, minimum | Dist min | mm | Lalou, Claude | ||
| 8 | Distance, maximum | Dist max | mm | Lalou, Claude | ||
| 9 | Uranium-238 | 238U | mg/kg | Lalou, Claude | Alpha spectrometry | |
| 10 | Uranium-238, standard deviation | 238U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 11 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Lalou, Claude | Alpha spectrometry | ||
| 12 | Uranium-234/Uranium-238 activity ratio, standard deviation | (234U/238U) std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 13 | Uranium-234 | 234U | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 14 | Uranium-234, standard deviation | 234U std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 15 | Thorium-230 | 230Th | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 16 | Thorium-230, standard deviation | 230Th std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 17 | Thorium-230 excess | 230Th xs | dpm/g | Lalou, Claude | Alpha spectrometry | |
| 18 | Thorium-230 excess, standard deviation | 230Th xs std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 19 | Thorium-230, per area | 230Th a | dpm/cm2 | Lalou, Claude | Alpha spectrometry | |
| 20 | Thorium-232 | 232Th | mg/kg | Lalou, Claude | Alpha spectrometry | |
| 21 | Thorium-232, standard deviation | 232Th std dev | ± | Lalou, Claude | Alpha spectrometry | |
| 22 | Deposit type | Deposit type | Lalou, Claude | |||
| 23 | Substrate type | Substrate | Lalou, Claude | |||
| 24 | Description | Description | Lalou, Claude |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
228 data points