THE CHARACTERISTICS OF ORE-CONTROLLING FRACTURE AND THE ORE-CONTROLING REGULARITIES IN PANGXIDONG Ag(Au) DEPOSIT, NORTHWEST GUANGDONG
THE CHARACTERISTICS OF ORE-CONTROLLING FRACTURE AND THE ORE-CONTROLING REGULARITIES IN PANGXIDONG Ag(Au) DEPOSIT, NORTHWEST GUANGDONG
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发表时间：
2005
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通讯作者：
Sun Hua-shan;Cao Xin-zhi
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作者：
Sun Hua-shan;Cao Xin-zhi
庞溪洞存款是粤西北地区典型的蚀变碎裂岩型银（Au）存款矿床。受前寒武系与下古生界混合片麻岩、燕山期花岗岩接触带断裂控制。矿体以脉状、透镜状赋存于断裂破碎带中。对该存款的研究表明，控矿断裂的形态和产状变化对矿体的空间定位有明显的控制作用。多条断裂交汇或合并，一般造成矿体扩大或增厚。矿体的分布与特定的构造岩及其在断裂带内的分带性有关。
Pangxidong deposit is one of the typical altered cataclastic rock type Ag(Au) deposit in the Northwest Guangdong province. It is controled by fracture in the contact zone between Precambrian system and Lower Palaeozoic migmatitic gneiss and Yanshanian granite. Ore bodies occur absolutely in fractural zone as veins, lens. Researches on the deposit indicate that spatial location of ore bodies is obviously controled by change of the ore-controling fraclure's morphology and occurrance. Intersection or merge of several fractares causes generally ore bodies enlarging or thickening. Distribution of ore bodies is related to particular tectonites and their zonation within the fractural zone.