粤中长坑-茶山矿田共有17个内生金属矿床(点),选择了位处矿田北部的长坑金银矿床、矿田中部和南部的横江和茶山多金属矿床进行重点研究.结果发现,位于矿田不同地区、不同规模、不同成矿元素的上述三个矿床,自下而上均呈现Cu→Zn→Pb→Ag→Au的分带规律.进一步的研究尚发现,围绕已出露和未出露的两个花岗岩体,矿田的区域成矿作用也呈现出与单个矿床成矿作用相同的规律性分带.上述规律的发现,为该区深部的找矿勘探提供了重要的理论指导.%Among the 17 endogenic metallic ore-deposits (prospects) in the Changkeng-Chashan ore-field, central Guangdong Province, we selected three deposits, i.e. the Changkeng Au-Ag deposit, the Hengjiang and the Chashan polymetallic deposits, respectively in the north, middle and south of the ore-field, as the examples for the research of metallogenetic zonation. The results show that though the three deposits have different lo cations, scopes and ore-forming elements, they all have the same metallogenetic zonation as Cu→Zn→Pb→Ag →Au from the bottom upwards of an ore body. Further study on the above basis indicates that all the deposits (prospects) as a whole in the ore-field surrounding two granite bodies, of which one outcrops and one is con cealed, exhibit the same metallogenetic zonation as that of a single deposit. The above findings would be help ful for the exploration in this area.
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