Spatial and temporal variability of hydrogeochemical patterns around Wahkyn uranium deposit, Meghalaya

Spatial and temporal controls on major ion and trace elements stream water and borehole water chemistry are assessed using hydro geochemical survey data for the area around Wahkyn Uranium Deposit, Meghalaya. Spatial variations in stream water chemical composition are interpreted in relation to the environmental chemistry of the major ions and trace elements and controls such as pH, Eh, bedrock geology, weathering processes and atmospheric inputs. Imaging of hydrogeochemical data and dissolved mineral species reveal the spatial and temporal variation patterns. Bedrock geology, atmospheric input and weathering processes can satisfactorily explain compositional variation in the hydrochemical data set. (author)