136 / 2016-12-23 18:04:35

Metalogenic Regularity and Prosecting of Dalaimiao Cu-Mo Polymetallic Deposit in Inner Mongolia

Dalaimiao,Cu-Mo polymetallic deposit,metalogenic regularity,prospecting of deposit

Abstract Dalaimiao is an important Cu-Mo polymetallic deposits zone in Inner Mongolia. The Cu-Mo deposits in this region are mostly porphyry type deposits and magmatic hydrothermal deposits. The geochronological data show that the Cu-Mo deposits in this region are mostly the product of the tectonic-magmatic activities during the Yanshanian. The Yanshanian fine-grained granite and quartz-porphyry are the main metallogenic granitic bodies. The Variscan granodiorite and quartz diorite are the main wall rocks and indicators for prospecting. The geochemical anomaly is the direct indicator for prospecting. The small-scale annular magnetic amomaly indicates the concealed granite, while the high resistivity indicates the concealed ore body. The silicification, beresitization, biotitization and chloritization are the main alteration types in this region. The comprehensive study of the geological characteristics, geophysical-geochemical anomaly and the geochronological data marked 2 prospecting target areas for Cu-Mo polymetallic deposits. They are Haerdeersi Cu-Mo polymetallic ore prospecting target area, and Wutenggenhuduge Cu-Mo polymetallic ore prospecting target area.