Geological characteristics and mineralization and enrichment regularity of Dashihu gold deposit

By analyzing the deposit geological characteristics of the small-scaled Carlin-type (micro-disseminated) Dasihu Gold deposit, this paper points out that the gold deposit is strictly controlled by inter-laminar fracture zone or fault fracture zone, showing layered, simulating layered or lenticular output. The upper part of the ore body has good grade and strong mineralization. The mineralization enrichment regularity reveals that two tectonic units in their transition zone is favorable to gold mineralization. The regional late Paleozoic -Mesozoic down -warping, ancient rift environment, secondary depression is favorable for gold enrichment. The general main fault or the confluences of several general main faults are favorable mineralization structures for mineralized zone or deposit. Gold mineralization enrichment favorable horizons are mainly in the lower Carboniferous Huashanlin formation and Maokou Formation Permian. It is of great significance to prospect Carlin-type gold deposit in other areas.