Advanced spatial modeling for copper and lead distribution due to the longtime mining activities

Balabanova, Biljana and Sajn, Robert and Alijagic, Jasminka and Stafilov, Trajče (2018) Advanced spatial modeling for copper and lead distribution due to the longtime mining activities. In: 25th Congress of the society of chemists and technologists of Macedonia , 19-22 Sept 2018, Ohrid, R. Macedonia.

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Abstract

The environmental concern in mining areas is primarily related to physical disturbanceof the surrounding landscape, mine tailings spill, emitted dust and acid mine drainage transported into rivers.The main purpose of this study was to develop a visualisation model of spatial distribution using linear and nonlinear mathematical methods that combine a sparsechemical analysis and various geospatial parameters in the Bregalnica River Basin, Kriva Reka River Basin, and the area of the field Ovče Pole, Republic of Macedonia. Main problem of linear methods is that their concentrations depend only on distance. The most commonly used geostatistical prediction method is ordinary kriging that usea semivariance function.Various parameteres can influence the results what can lead to the wrong interpretation most common are Bull’s eye contours. In other side Artificial Neural Network – Multilayer Perceptron (ANN-MLP) improved much better results. ANN-MLP was used as nonlinear model for data processing and visualization of lead and copper in the investigated area. Model obtained by ANN was tested for the lithogenic (using top soil samples, 0-5 cm layer) distribution and atmospheric (moss samples) distribution. For the copper distribution enrichments were connected to the Cu open pit and some lithological units and along the rivers (alluvial planes) – what indicatative presence of river transport.Lead enrichment was connected only to Pb mining areas, some lithological units and along the rivers (alluvial planes). At the middle flow of the river Bregalnica the ANN didn’t isolated the high concentrations. This means that the sediments are trapped in the lake Kalimanci and polluted sediments accumulate in the lake. Atmospheric enrichment is also connected to the mining areas, while the high concentrations are not connected to the lithological units.

Item Type: Conference or Workshop Item (Speech)
Subjects: Natural sciences > Chemical sciences
Natural sciences > Earth and related environmental sciences
Agricultural Sciences > Other agricultural sciences
Divisions: Faculty of Agriculture
Depositing User: Biljana Balabanova
Date Deposited: 12 Oct 2018 10:26
Last Modified: 12 Oct 2018 10:26
URI: http://eprints.ugd.edu.mk/id/eprint/20543

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