Baturin, Gleb N; Asavin, A M; Kolesov, Gennady M (2006): Contents of major and noble chemical elements in phosphorites and bottom sediments [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.788235, Supplement to: Baturin, GN et al. (2006): Noble metals in recent and ancient phosphorites. Translated from Doklady Akademii Nauk, Ser. Geol., 2006, 407(3), 384-387, Doklady Earth Sciences, 407A(3), 408-411, https://doi.org/10.1134/S1028334X06030147
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Abstract:
Ag and Au are typically concentrated in phosphorites; they genetically related to organic matter of bottom sediments that extract these elements from seawater or interstitial water. Consequently, the phosphorites inherit Ag and Au from host sediments that are not always enriched in them. In contrast to other organic-rich sediments, analyzed sample of recent diatom ooze from the Namibian shelf is not enriched in Ag and Au, although some sediments from this region are enriched in Au. In addition to authigenic Au, allochthonous Au associated with quartz grains and micrograins can also be present in shelf phosphorites. This was observed in oceanic phosphorites of various types. Anomalous Au and Fe contents recorded in one seamount phosphorite sample can be related to extraction of Au and nonferrous metals by ferromanganese hydroxides from seawater. This process can serve as one of major mechanisms of Au supply to ferromanganese crusts on seamounts. Phosphorites and sediments are enriched in Ru simultaneously with U. Author's data show that U content varies from 17 (seamount phosphorite) to 887 ppm (Pleistocene phosphorite nodule from the Namibian shelf). This is probably caused by different types of behavior of light and heavy PGEs in the marine environment.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 11.614833 * Median Longitude: 32.067952 * South-bound Latitude: -22.133333 * West-bound Longitude: -79.400000 * North-bound Latitude: 43.068300 * East-bound Longitude: 151.416700
Date/Time Start: 1964-09-01T22:00:00 * Date/Time End: 1964-09-01T22:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Baturin, GN; Asavin, AM; Kolesov, GM (2006): (Table 1) Contents of major chemical elements in phosphorites and bottom sediments. https://doi.org/10.1594/PANGAEA.788232
- Baturin, GN; Asavin, AM; Kolesov, GM (2006): (Table 2) Contents of noble metals in phosphorites and bottom sediments. https://doi.org/10.1594/PANGAEA.788234