The article deals with a method for hydrochemical exploration and poorly studied areas based on the simulation and statistical modeling of the hydrochemical field. The peculiarity of the method is a prospecting area spotting under the following conditions: (1) the maximal ratio between river basin in the Riverhead without evident channel network and the total river basin; (2) the river network and tectonic deformations maximum. | Vietnam Journal of Earth Sciences 39(2), 167-180, DOI: Vietnam Academy of Science and Technology (VAST) Vietnam Journal of Earth Sciences Improved method for hydrochemical exploration of mineral resources Nguyen Van Luyen*1, Oleg G. Savichev1, Viktor A. Domarenko2, Quach Duc Tin3 1 Department of Hydrogeology, Engineering Geology and Hydrogeoecology, Tomsk Polytechnic University, Tomsk, Russian Federation 2 Department of Geoecology and Geochemistry, Tomsk Polytechnic University, Tomsk, Russian Federation 3 Department of the Science, Technology and International Cooperation, General Department of Geology and Minerals of Vietnam (GDGMV) Received 09 January 2017. Accepted 10 April 2017 ABSTRACT The article deals with a method for hydrochemical exploration and poorly studied areas based on the simulation and statistical modeling of the hydrochemical field. The peculiarity of the method is a prospecting area spotting under the following conditions: (1) the maximal ratio between river basin in the Riverhead without evident channel network and the total river basin; (2) the river network and tectonic deformations maximum; (3) presence of low-flow rate sections with relatively sharp breaks in grade of the water surface (outflow of rivers from mountainous areas onto the sub-mountain plain, extended sections of channel multi-branching). A sampling of 2-3 samples of surface water, 2-3 samples of river bed sediments, and 2-3 samples of ground water is taken at prospective sections and contiguous territories and the chemical composition determined. The geo-informational analysis and obtained data are used to determine the parameters of the model of the area under study, a predictive assessment of the hydrochemical indicators for prospective sections is carried out, and a detailed examination is planned and performed. The expected reduction in the cost of exploration compared to currently used methods is
