Jones, Blair F; Bowser, Carl J (1977): (Table 6, page 216) Electron microprobe analyses of ferromanganese nodules from Tomahawk Lake, Wisconsin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.855351, Supplement to: Jones, BF; Bowser, CJ (1978): The mineralogy and related chemistry of lake sediments (Chapter 7). In: Lerman, A. (Ed) Lakes - Chemistry, Geology, Physics. Springer New York. ISBN: 978-1-4757-1154-7, 179-235, https://doi.org/10.1007/978-1-4757-1152-3_7
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Abstract:
Oxide coatings on sediments, especially iron, are ubiquitous in the oxygenated environments of most lakes. Deposits of ferromanganese oxides are especially abundant in many lakes in the glaciated regions of North America and Europe. Iron and manganese is readily derived from weathering of mechanically ground, largely crystalline rock debris which is permeable and readily weathered under the humid coldtemperate climate and abundant vegetation. Crusts around pebbles and cobbles constitute much of the most concentrated lacustrine ferromanganese deposits yet reported: Oneida Lake, New York, and Lake Tomahawk, Wisconsin. Freshwater phases tend to be less crystalline than their marine counterparts, possibly a result of faster accretion rates and thus having less time for recrystallization. Electron probe analyses of iron and manganese phases from two nodules from Lake Tomahawk are presented.
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: 45.818970 * Longitude: -89.641620
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
Tomahawk-J * Latitude: 45.818970 * Longitude: -89.641620 * Elevation: 490.0 m * Lake water depth: 10 m * Location: Lake Tomahawk, Wisconsin, USA * 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | Identification | ID | Jones, Blair F | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Jones, Blair F | Geocode | |
| 3 | Iron oxide, Fe2O3 | Fe2O3 | % | Jones, Blair F | Electron microprobe (EMP) | |
| 4 | Manganese dioxide | MnO2 | % | Jones, Blair F | Electron microprobe (EMP) | |
| 5 | Calcium oxide | CaO | % | Jones, Blair F | Electron microprobe (EMP) | |
| 6 | Phosphorus pentoxide | P2O5 | % | Jones, Blair F | Electron microprobe (EMP) | |
| 7 | Silicon dioxide | SiO2 | % | Jones, Blair F | Electron microprobe (EMP) | |
| 8 | Potassium oxide | K2O | % | Jones, Blair F | Electron microprobe (EMP) | |
| 9 | Barium oxide | BaO | % | Jones, Blair F | Electron microprobe (EMP) | |
| 10 | Description | Description | Jones, Blair F |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
36 data points