Geochemical studies on Dachange antimony ore deposit in Qinglong, Guizhou province

摘要

The Dachange antiony deposit in Qinglong, Guizhou Province, is strictly controlled by the "Dachang Layer" which is a complex altered rock occurring at unconformity between the permian Emeishan basalt and the Maokou limestone. Based on the studies of the hanging-and foot-wall rocks, the trace elements and REE contents of the rocks and ores and heavy placer minerals in the basalt, this paper is focused on the relations between these data and the "Dachang Layer" and its hanging-and foot-wall rocks.