Abstract:

The northwestern Guizhou Province is located in a rift basin with some lead-zinc deposits controlled by the faults and strata. The authors discusse systemically based on several aspects from studies on regional geochemistry, stream sediment geochemistry, geochemical stratigraphy and geochemical block etc. Important prospecting criteria in the area include: located at the both sides of the fracture and/or adjacent to fracture junction, at rock contact zone, within Pb-Zn anomalous zones and in the concentration centers of geochemical block. Special attention should be paid to the comprehensive, anomalous zones consisting of several elements. In addition, the northwestern Guizhou Province are featured by banded geochemical concentration blocks  and by intensely enrichment of Pb and Zn, thus is highly potential for hosting the Pb-Zn deposits.  It is suggested that more comprehensive studies are need to find some large, even superlarge lead-zinc deposits.

Key words: northwestern Guizhou Province, lead-zinc deposits, geochemical characteristics;metallogenic regularity