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- Title
Terrestrial radioisotopes as paleoenvironmental proxies in sedimentary formations.
- Authors
Bíró, Lóránt; Polgári, Márta; M. Tóth, Tivadar; Vigh, Tamás; Kávási, Norbert; Sahoo, Sarata
- Abstract
The presence of anomalous terrestrial radioisotopes must be suspected in black shale-hosted manganese ore deposits, based on high organic matter content, which is useful tool in genetic, among them paleoenvironmental investigations. Our work aims at the characterization of the paleoredox conditions of the Úrkút Manganese Formation based on comparison of terrestrial radioisotopes and selected element ratios. Paleoredox indicators were estimated on U/Th, δU, Ni/Co, V/Cr, V/(V + Ni) and Ce*. The results of paleoredox indicator element ratios show, that these methods must be used with caution (microbial selective element enrichments, mobilizations), and the complex interpretation using mineralogy and microtexture can be recommended.
- Subjects
RADIOISOTOPES; SEDIMENTARY basins; BLACK shales; MANGANESE ores; ORE deposits; ORGANIC compounds
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2015, Vol 306, Issue 1, p289
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-014-3861-z