Publication details

Impact of Gravel Pits on Ground water: Case study of Gravel Pits near the Mohelnice City, Czech Republic



Year of publication 2008
Type Article in Proceedings
Conference Mine Water and the Environment PROCEEDINGS, 10th International Mine Water Association Congress, June 2-5. 2008, Karlovy Vary, Czech Republic
MU Faculty or unit

Faculty of Science

Field Geology and mineralogy
Keywords Gravel pits; Ground water; Computer modeling; Ground water level changes; Mineral precipitation
Description Gravel pits near the Mohelnice city, Czech Republic, are situated in an aquifer that is important for ground water supply. The impact of gravel pits on ground water was assessed using numerical computer modeling; different stages of mining were simulated. The maximum rise of the ground water table has reached +1 m, while the decline is -3 m, compared to original levels. The gravel pits become drainage bases of the aquifer as the result of both mining activity and artificial changes in the Morava River channel. As a result of ground water flow into the open gravel pits, there is precipitation of calcite, pyrolusite and amorphous Fe(OH)3, as well as an increase of pH values.
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