Analysis of tectonic geochemical characteristics and leaching effects of typical pollutants in Kongyu gold mining area in Dadu River Basin, Kangding.

Kongyu Gold Mining Area is located in the northern margin of the Sichuan-Yunnan tectonic belt. This area has gone through two large tectonic cycles of Mesoproterozoic, Neoproterozoic and Phanerozoic. The strata are accompanied by a large number of tensile cracks, shear cracks and microfissures.