The Distribution of Elements in the Vertical Section of Bottom Sediments in the Black Sea
| Autor: | T. N. Lubkova, L. L. Demina, O. A. Lipatnikova, E. I. Nemchenko, M. D. Kravchishina |
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| Rok vydání: | 2020 |
| Předmět: |
Terrigenous sediment
020209 energy Hydrogen sulfide Mineralogy Crust 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences Salinity Bottom water chemistry.chemical_compound chemistry Bioaccumulation 0202 electrical engineering electronic engineering information engineering General Earth and Planetary Sciences Earth (classical element) Geology 0105 earth and related environmental sciences Mud volcano |
| Zdroj: | Moscow University Geology Bulletin. 75:168-176 |
| ISSN: | 1934-8436 0145-8752 |
| DOI: | 10.3103/s0145875220020064 |
| Popis: | The microelement composition of the vertical section of bottom sediments in the Black Sea has been studied. The analysis of the calculated enrichment factors relative to the mean composition of the Earth’s crust has shown that the lithogenic source dominates for most microelements. We revealed a significant enrichment with Ca and Sr (due to bioaccumulation) and with S, As, and Mo (as a result of hydrogen sulfide contamination and the effect of mud volcanoes). The calculated indicator ratios of elements allow evaluation of the presence of exhalation components in sediments (Fe + Mn/Ti) and of the transportation distance of terrigenous material (Ti/Zr). Paleoreconstruction of salinity (Corg/S) and oxidation-reduction conditions in the bottom water layer (Mn/Fe, Mo/Mn, V/(V + Ni), and V/Mn) was performed. |
| Databáze: | OpenAIRE |
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