A tentative discussion on the genesis of the Dachang antimony deposit, Qinglong County, Guizhou Province.

The Dachang stibnite deposit is a typical stratabound deposit. Ore related elements such as F, Cl, S, Fe, Cu, Pb, As, Au and Sb were brought in by a Hercynian basaltic lava flow. The intensive Yenshanian orogeny and geothermal gradient activated antimony as well as other elements and produced a sulphate type hot brine with added meteoritic water at about 300 degrees C. Loaded with antimony and other elements this hot brine moved along the palaeokarst surface of Maokou limestone and filled in exfoliation space, joints, cracks and fractures to form the stibnite deposit at approximately 140 degrees C.
The Dachang stibnite deposit is a typical stratabound deposit. Ore related elements such as F, Cl, S, Fe, Cu, Pb, As, Au and Sb were brought in by a Hercynian basaltic lava flow. The intensive Yenshanian orogeny and geothermal gradient activated antimony as well as other elements and produced a sulphate type hot brine with added meteoritic water at about 300 degrees C. Loaded with antimony and other elements this hot brine moved along the palaeokarst surface of Maokou limestone and filled in exfoliation space, joints, cracks and fractures to form the stibnite deposit at approximately 140 degrees C.