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Radiogeochemical zoning and mapping of bottom sediments in the Eastern Gulf of Finland
| Content Provider | Semantic Scholar |
|---|---|
| Author | Grigor’ev, A. G. Vladimirov, Martin |
| Copyright Year | 2013 |
| Abstract | A procedure is proposed for geochemical mapping of the water area bottom based on the subdivision of raw data into two components, i.e., systematic (regional) and random (local). The former is used to determine regional characteristic of the spatial radionuclide distributions in bottom sediments to be utilized to identify large radiogeochemical regions, while the latter is used to identify local anomalies and evaluate their characteristics. The systematic component of the radiogeochemical field is determined by trend analysis. Next, cluster analysis, i.e., hierarchic clusterization of the results of trend analysis followed by associative classification, is used for radiochemical zoning of the water area. After that, maps are constructed, showing contour lines of the local component of radiogeochemical fields, represented by deviations of the value in the given point from the trend. The result is a single map showing the radiogeochemical regions with contour lines of normalized anomalous activities of the radionuclides under study. The practical application of the method is illustrated by radiogeochemical mapping of the bed in the Eastern Gulf of Finland. |
| Starting Page | 706 |
| Ending Page | 715 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1134/S0097807813070051 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1134/S0097807813070051 |
| Alternate Webpage(s) | https://doi.org/10.1134/S0097807813070051 |
| Volume Number | 40 |
| Journal | Water Resources |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
