Kjeldsen, Siv (1987): Annotated record and chemical composition of ferromanganese concretions and crusts sampled from the lakes and streams of Norway [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.863815, Supplement to: Kjeldsen, S (1987): Oxidates as a geochemical sampling medium in granitic terrain. Norway Geological Survey (NGU) Report, 86.169, 492 pp, http://www.ngu.no/FileArchive/NGURapporter/86_169.pdf
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Abstract:
The main objective of the project was to develop a geochemical method for exploration of ores associated with granitic rocks. Fe and Mn oxidates were sampled in streambeds and lakes from 129 localities in Southeastern Norway. 65 of these localities are situated in the northern Oslo Graben. The samples were examined mineralogically and chemically by a variety of methods. Geochemical maps of the element content in oxidates show regional distribution patterns for several elements. Sampling and analysis of oxidates can be used in exploration for mineralizations such as the Skrukkelia Mo-deposit in the northern Oslo Graben. New anomalies (especially for Zn and W) have been detected.
Appendix I contains a description of samples, chemical and mineralogical determinations performed on the samples, backscattered electron image-, X-ray image- and scanning electron image pictures of the oxidate preparates. Appendix II contains spectral plots, point analysis with the microprobe, X-ray diffractograms, analytical results, correlation coefficient matrix, scatterplots, frequency distributions and information on data storage. Appendix III containS maps of the element content in oxidates.
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: 61.730062 * Median Longitude: 12.403058 * South-bound Latitude: 58.278581 * West-bound Longitude: 7.289743 * North-bound Latitude: 66.585295 * East-bound Longitude: 19.935703
Date/Time Start: 1984-01-01T00:00:00 * Date/Time End: 1985-12-31T00:00:00
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.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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3 datasets
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Datasets listed in this publication series
- Kjeldsen, S (1987): (Table 86.169-7.1, page 227-233) Chemical composition of the HCL soluble part of ferromanganese concretions and crusts sampled from the lakes and streams of Southeastern Norway by ICP analysis. https://doi.org/10.1594/PANGAEA.863812
- Kjeldsen, S (1987): (Table 10, page 80-81) Chemical composition of internal layers of ferromanganese concretions and crusts sampled from the lakes and streams of Southeastern Norway using point microprobe analysis. https://doi.org/10.1594/PANGAEA.863814
- Kjeldsen, S (1987): Annotated record of the ferromanganese concretions and crusts sampled from the lakes and streams of Southeastern Norway. https://doi.org/10.1594/PANGAEA.863810