Annotated record and chemical composition of iron-manganese nodules from the Baltic Sea
| Cobertura |
MEDIAN LATITUDE: 62.469209 * MEDIAN LONGITUDE: 22.595586 * SOUTH-BOUND LATITUDE: 59.583333 * WEST-BOUND LONGITUDE: 17.713330 * NORTH-BOUND LATITUDE: 65.291670 * EAST-BOUND LONGITUDE: 27.391670 * DATE/TIME START: 1956-01-01T00:00:00 * DATE/TIME END: 1963-09-07T00:00:00 |
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| Data(s) |
08/01/1966
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| Resumo |
Iron-manganese concretions, closely related to lacustrine ores and deep sea manganese nodules, are presently forming in different parts of Gulfs of Bothnia and Finland. They can be divided according to physical form into three distinct groups: (1) round pea-shaped concretions, (2) ring-shaped concrections, and (3) flat sheets and crusts of concretionary material. A definite correlation was found to exist between the form i.e. type of concretions and their chemical composition (Mn/Fe ratio). Trace element concentrations were generally rather high, although not as high as in deep sea manganese nodules. X-ray and DTA was used to study the mineralogy and crystal structure of the concretions. Surface concentrations and geographical distribution of the concretions were estimated on the basis of samples, diving observations and echo-grams. |
| Formato |
application/zip, 4 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.856728 doi:10.1594/PANGAEA.856728 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Relação |
Grant, J Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, doi:10.7289/V52Z13FT Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, doi:10.7289/V53X84KN Winterhalter, Boris: Figure 1: Coalesced round iron-manganese concretions from the central part of the Bothnian Bay at station 14RR4. hdl:10013/epic.46576.d001 Winterhalter, Boris: Figure 10a: Side view of a ring-shaped concretion formed around a small granitic pebble. hdl:10013/epic.46576.d006 Winterhalter, Boris: Figure 4: Observation of concretions and their relation to underlying sediment done using SCUBA-equipment down to a depth of 40 meters. hdl:10013/epic.46576.d002 Winterhalter, Boris: Figure 5: Agglomerated concretion (Korso type) fromed by the action of currents and successive partial dissolution and regrowth. hdl:10013/epic.46576.d003 Winterhalter, Boris: Figure 7: Typical disc-shaped flat concretion with a mammilated surface. hdl:10013/epic.46576.d004 Winterhalter, Boris: Figure 8: Round (pea-shaped or grain-like) concretions from sample A7 in the central part of the Gulf of Bothnia. hdl:10013/epic.46576.d005 |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Winterhalter, Boris (1966): Pohjanlahden ja Suomenlahden rauta-mangaani-saostumista. Summary: Iron-manganese concretions from the gulf of Bothnia and the gulf of Finland. Geoteknillisiä julkaisuja - Geotekniska meddelanden - Geotechnical publications, 69, 77 pp, http://tupa.gtk.fi/julkaisu/geoteknillinen/gt_s_069.pdf |
| Palavras-Chave | #Chromium; Clast shape; Co; Cobalt; Comment; Copper; Cr; Cu; Deposit type; Depth; DEPTH, sediment/rock; Description; determined by loss at 110°C; determined by loss between 110°C and 400°C; Event; Fe2O3; H2O; Insol res; Insoluble residue; Iron oxide, Fe2O3; Lead; LOI; Loss on ignition; Manganese oxide; MnO; Mo; Molybdenum; Ni; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OM; Organic matter; P2O5; Pb; Phosphorus oxide; Position; Quantity; Quantity of deposit; SampleID; Sample ID; Sediment; Sediment type; Shape; Size; Spectrometric analysis; Sr; Strontium; Substrate; Substrate type; Uniform resource locator/link to image; URL image; V; Vanadium; Water in rock; Wet chemistry; Zinc; Zn |
| Tipo |
Dataset |
