Levander, K M (1906): Annotated record of the detailed examination of Mn deposits in lake Humaljärvi, Finland [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.867523, Supplement to: Levander, KM (1906): Über das Plankton des Sees Humaljärvi = About the plankton of Lake Humaljärvi. In: Meddelanden, Societas Pro Fauna Et Flora Fennica - Trettiondeandra Häftet 1905 - 1906. Helsingfors, Finland, 42-46, https://archive.org/details/meddelandenafsoc320506soci
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Published: 1906 (exact date unknown) • DOI registered: 2016-12-02
Abstract:
The Humaljärvi lake is situated 25 km West of Helsinki (formely, Helingsfors). The author proceeded to dredge the bottom of the lake in order to study its plancton species following a preceeding study of Pr. J. E. Rosberg in 1900. From the middle of the lake, at a maximum depth of about 10 meters the dredge brought easily some fairly soft gray mud. When the mud samples were sifted, it remained sand grains and ferro-manganese deposits in the form of abundant small round or lenticular objects, 2-6 mm in diameter.
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: 60.162972 * Longitude: 24.429989
Date/Time Start: 1905-10-01T00:00:00 * Date/Time End: 1905-10-01T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | Identification | ID | Levander, K M | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Levander, K M | Geocode | |
| 3 | Position | Position | Levander, K M | Visual description | ||
| 4 | Deposit type | Deposit type | Levander, K M | |||
| 5 | Quantity of deposit | Quantity | Levander, K M | |||
| 6 | Size | Size | Levander, K M | |||
| 7 | Sediment type | Sediment | Levander, K M | |||
| 8 | Comment | Comment | Levander, K M | |||
| 9 | Description | Description | Levander, K M |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
8 data points