Radioecological situation in the area of monazite placer in South Yakutia
| Autor: | P. I. Sobakin, A. A. Perk, Ya. R. Gerasimov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Pollution
Placer mining media_common.quotation_subject 020209 energy Geochemistry Thorium chemistry.chemical_element 02 engineering and technology Dispersion (geology) 010502 geochemistry & geophysics 01 natural sciences Geophysics chemistry Geochemistry and Petrology Monazite Soil water 0202 electrical engineering electronic engineering information engineering Environmental science Soil horizon Alluvium media_common 0105 earth and related environmental sciences |
| Zdroj: | Геохимия. 64:440-448 |
| ISSN: | 0016-7525 |
| DOI: | 10.31857/s0016-7525644440-448 |
| Popis: | —The results of radioecological investigation of the territory of the Vasilyevka monazite placer in South Yakutia are reported. The processes of deposit development causing the local radioactive pollution of the territory are described. They induce the high exposure rates of gamma-radiation on the ground surface and the elevated thorium concentration in soil and plants. Identified areas of natural thorium concentrations in the alluvial sediments create the extremely high values of dose rate of gamma-radiation on the surface, which is 9–23 times higher than the normal natural radiation background. The scales of wind dispersion of thorium from pollution source are estimated on the basis of its vertical distribution in a soil profile of podbours. |
| Databáze: | OpenAIRE |
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