Groundwater containing high levels of iron in Jeongsun, Korea: hydrogeological implications
Hwang-gol valley is located in Bukpyeong5-ri, Jeongsun, Korea and the geology includes the Sadong series (Ps), comprised of black or dark gray shale and slate. Groundwater of this study is mainly coming from seepage at fractures of the slate and its flux is frequently changing with time. At the bottom of the groundwater seepage, precipitation materials with red color are widely distributed and the seepage water shows a strong metallic smell. Hydrochemical feature and origin of groundwater containing high levels of iron was studied by geological investigation including XRD analysis, field measurement of water quality, and laboratory chemical analysis. The XRD analysis revealed that the precipitate is mainly ferrihydrite and the surrounding rock is slate contained quartz, K-feldspar, muscovite, illite, and chlorite. Rock sample not contained ferric mineral. Measurement of field parameter and chemical analysis of major ions were conducted for the groundwater seepage and the nearby stream water. Groundwater showed a chemical composition of CaSO4 type and exhibited insignificant seasonal variation from July to October, 2008. Iron exists in ferrous form under anaerobic condition, but the ferrous iron can be oxidized to ferric form at the exit of groundwater seepage through slate crack.
H.M.Choi J.Y.Lee
Department of Geology, Kangwon National University, Republic of Korea
国际会议
武汉
英文
321-324
2009-09-20（万方平台首次上网日期，不代表论文的发表时间）