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| METALLOGENIC CHARACTERISTICS AND ORE-CONTROLLING FACTORS OF THE HYDROTHERMAL LEAD-ZINC-SILVER DEPOSITS IN THE DERBUGAN METALLOGENIC BELT, NE CHINA |
| ZHAO Jing |
| College of Resources and Metallurgy, Guangxi University, Nanning 530004, China |
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Abstract The hydrothermal vein-type Pb-Zn-Ag deposits in the Derbugan metallogenic belt are characterized by intensive distribution, concentrated times of mineralization and similar metallogenic conditions. They have inherent relations in genesis. The Pb-Zn-Ag ore bodies occur mainly in the Middle-Late Jurassic volcanic rocks. The Early Cretaceous subvolcanic or intrusive rocks may be the essential sources of substance and power. The regional uplift-depression structures, volcanic edifices and volcanic-subvolcanic magmatism are the significant controlling factors. The NW-trending tensional-shearing fault system provides guide and host for ore-forming materials. The ore materials are mainly derived from the mantle. The ore-bearing hydrothermal fluid transmitted within the fracture system in the volcanic rocks, filled and replaced the surrounding rock metasomatism, making the precipitation and mineralization of ore-forming elements.
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Received: 16 October 2014
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2014, Vol. 23 
