Kepkay, Paul E (1985): (Table 2, page 725) Solid phase chemistry of ferromanganese precipitates from Nova Scotian lakes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.845931, Supplement to: Kepkay, PE (1985): Kinetics of microbial manganese oxidation and trace metal binding in sediments: Results from an in situ dialysis technique. Limnology and Oceanography, 30(4), 713-726, https://doi.org/10.4319/lo.1985.30.4.0713
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Abstract:
Sediments associated with freshwater ferromanganese concretions in Lake Charlotte, Nova Scotia, contained microscopic precipitates of manganese and iron. These precipitates were dispersed throughout the sediment and were as rich in nickel, cobalt, and copper as deep sea concretions. In addition, the development of the precipitates appeared to be associated with the microbial oxidation of manganese. Results from the deployment of poisoned and unpoisoned dialysis probes or peepers demonstrated that microbial manganese oxidation and nickel binding were closely associated, causing a fivefold enhancement of abiotic processes such as adsorption.
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: 44.772845 * Median Longitude: -62.947815 * South-bound Latitude: 44.772800 * West-bound Longitude: -62.948330 * North-bound Latitude: 44.772890 * East-bound Longitude: -62.947300
Minimum Elevation: 6.0 m * Maximum Elevation: 6.0 m
Event(s):
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | Kepkay, Paul E | |||
| 2 | Latitude of event | Latitude | Kepkay, Paul E | |||
| 3 | Longitude of event | Longitude | Kepkay, Paul E | |||
| 4 | Sample elevation | Elevation | m | Kepkay, Paul E | ||
| 5 | Sample comment | Sample comment | Kepkay, Paul E | |||
| 6 | Iron/Manganese ratio | Fe/Mn | Kepkay, Paul E | Atomic absorption spectrometry (AAS) | % ratio | |
| 7 | Nickel/Manganese ratio | Ni/Mn | Kepkay, Paul E | Atomic absorption spectrometry (AAS) | ppm ratio | |
| 8 | Cobalt/Manganese ratio | Co/Mn | Kepkay, Paul E | Atomic absorption spectrometry (AAS) | ppm ratio | |
| 9 | Copper/Manganese ratio | Cu/Mn | Kepkay, Paul E | Atomic absorption spectrometry (AAS) | ppm ratio | |
| 10 | Comment | Comment | Kepkay, Paul E |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
21 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Sample comment | 6 Fe/Mn | 7 Ni/Mn | 8 Co/Mn | 9 Cu/Mn | 10 Comment |
|---|---|---|---|---|---|---|---|---|---|
| Lake_Charlotte-M | 44.7729 | -62.9473 | -1 | Lake Charlotte muds (avg from 10 sediment horizons at site M) | 0.63 | 43000 | 12000 | 2700 | Large concretions were not present and the macrophyte Eriocaulon septangulare (known locally as pipe wort) covered a soft mud bottom |
| Lake_Charlotte-S | 44.7728 | -62.9483 | -1 | Lake Charlotte sands (avg from 6 sediment horizons at site S) | 0.59 | 20000 | 11000 | 1500 | Hard sandy bottom covered with disk-like ferromanganese concretions |
| Lake_Charlotte-S | 44.7728 | -62.9483 | -1 | Lake Charlotte concretion (site S) | 0.63 | 400 | 920 | 21 | Disk-like ferromanganese concretions 5-15 cm in diameter |