Ferromanganese nodules from the Kara Sea: Interrelation between organic matter and ore elements
| Autor: | V. I. Peresypkin, N. A. Shulga, A. N. Drozdova |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Nodule (geology)
chemistry.chemical_classification 010504 meteorology & atmospheric sciences 010505 oceanography Ferromanganese nodules Trace element Geochemistry Mineralogy engineering.material 01 natural sciences chemistry Terrestrial organic matter Earth and Planetary Sciences (miscellaneous) engineering General Earth and Planetary Sciences Organic matter Geology 0105 earth and related environmental sciences |
| Zdroj: | Doklady Earth Sciences. 472:237-240 |
| ISSN: | 1531-8354 1028-334X |
| DOI: | 10.1134/s1028334x17020246 |
| Popis: | This study presents data on Fe–Mn nodules first recovered from the northeastern part of the Kara Sea. Analysis of the geochemical indicators of organic matter and major and trace element compositions of nodules showed that samples with strong Mn enrichment (Mn/Fe = 2.38, on average) are dominated by terrestrial organic matter (OM), whereas Fe-rich samples (Mn/Fe = 0.20, on average) are dominated by marine biogenic OM. The variation in the n-alkane abundances in the studied nodules is independent of the sampling sites and nodule morphology. This study was conducted for the first time in the Artic region. |
| Databáze: | OpenAIRE |
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