QINLING-TYPE LEAD-ZINC DEPOSITS

摘要

Qinling-type Pb-Zn deposits are located in the Qinling fold belt, occurring in the fine-clastic and carbonate rocks of the Devonian marine facies. They are reformed, sedimentary deposits o-riginating from hydrothermal waters, and may be subdivided into 2 subtypes: hydrothermal sedimentation deposits (Changba subtype) and reformed, hydrothermal sedimentation deposits (Bijiashan-Qian-dongshan subtype). In comparison with some of the famous Palaeozoic Pb-Zn deposits in the world, the Qinling-type Pb-Zn deposits constitute an independent type, which possesses some characteristics of both hydrothermal, sedimentary deposits and reformed, hydrothermal deposits.