Hydrogeochemistry of Fluorine in Groundwater in Humid Mountainous Areas: A Case Study at Xingguo County, Southern China

Figure 1

Geological map of Northwest Xingguo County. 1: quaternary; 2: early carboniferous; 3: late Devonian; 4: early and middle-late Cambrian; 5: middle Sinian; 6: granite in late Jurassic; 7: fault; 8: stratigraphic boundary; 9: river.