Fugu Limestone

Fugu Limestone

　　Fugu Limestone

　　The limestone is primarily distributed along the river from Langwan to Tianqiao Hydropower Station, covering an area of 75 square kilometers with a total reserve of over 500 million tons. The limestone ore body is located within the Upper Majiagou Formation of the Ordovician system, with dozens of meters exposed at the surface, extending about 7 kilometers in length. It consists of upper and lower layers: the upper layer is 15–18 meters thick, and the lower layer is 2–4 meters thick. The interval between the layers is about 10 meters, with a burial depth of 0–26 meters. The hydrogeological conditions are simple, making it easy to mine, with high grade and low impurity content. The calcium oxide (CaO) content ranges from 52% to 55%, classifying it as first-grade limestone suitable for cement production.