南岭成矿带粤北地区广泛发育燕山期中酸性花岗岩，易形成富含W、Sn、Pb、Zn等有色金属矿产。石寨银铅锌矿床是一个矽卡岩型多金属矿床，研究其控矿条件，分析其成因旨在总结区域成矿规律，为该类与矽卡岩有关的找矿工作提供借鉴。从岩浆岩、构造、围岩等控矿条件入手，分析其成因，最终认为燕山四期中酸性花岗岩———中细粒黑云母花岗岩岩浆演化充分，分异程度高、矿化富集好；成矿流体与碳酸盐岩地层接触发生渗透、扩散交代作用，在接触带构造外带形成银铅锌多金属矿床，成因类型为接触交代矽卡型矿床。
Yanshanian medium acidity granite develops widely in the northern Guangdong part of Nanling Metallo-genic Belt,which makes it easy to form W,Sn,Pb,Zn and other nonferrous metallic minerals. Shizhai Ag-Pb-Zn Deposit is a typical skarn type polymetallic deposit. Study on its ore-controlling conditions and analysis of its genesis are aimed at concluding the regional mineralization regularities and thus providing references for the prospecting of such skarn-related deposits. The genesis is analyzed based on the tectonics,magmatic rocks and surrounding rocks and the fourth Yanshanian medium acidity granite is determined—medium-fine biotite granite magmatic rocks fully evolved with high degree differentiation and good mineralization and enrichment;the ore-forming fluids contacted the carbonate strata where the permeation and diffusive metasomatism occurred,making Ag-Pb-Zn skarn rock type polymetallic deposits form in outer tectonic belt of the contact zone. The genetic type is hydrothermal contact metasomatic skarn de-posit.
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