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| 粤西北庞西垌银(金)矿床控矿断裂特征与断裂控矿规律 | |
| 引用本文： | 孙华山,曹新志,张科.粤西北庞西垌银(金)矿床控矿断裂特征与断裂控矿规律[J].地质找矿论丛,2005,20(3):161-165. |
| 作者姓名： | 孙华山 曹新志 张科 |
| 作者单位： | 1. 中国地质大学,资源学院,武汉,430074;中国地质大学,研究生院,武汉,430074 2. 中国地质大学,资源学院,武汉,430074 3. 中国地质大学,研究生院,武汉,430074 |
| 基金项目： | 广东省廉江市庞西垌断裂带银金矿体定位规律及牛时历矿段成矿预测研究项目 |
| 摘 要： | 庞西垌银(金)矿床是粤西北地区构造蚀变岩型银(金)矿床的典型代表之一.矿床产出受前寒武系及下古生界混合片麻岩与燕山晚期花岗岩之间的接触带断裂构造控制,矿体严格产于断裂带内部,呈脉状、透镜状.研究表明,控矿断裂的形态、产状变化对矿体空间定位有明显的控制作用,多组控矿断裂的交叉复合是矿体加大变厚的直接原因.矿体产出与断裂构造内部特定的断裂构造岩、蚀变岩及其分带有关. |
| 关 键 词： | 控矿断裂特征 控矿规律 庞西垌银(金)矿床 粤西北 |
| 文章编号： | 1001-1412（2005）03-0161-05 |
| 收稿时间： | 2004-10-10 |
| 修稿时间： | 2004年10月10 |
THE CHARACTERISTICS OF ORE-CONTROLLING FRACTURE AND THE ORE-CONTROLING REGULARITIES IN PANGXIDONG Ag(Au) DEPOSIT, NORTHWEST GUANGDONG |
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| SUN Hua-shan,CAO Xin-zhi and ZHANG Ke.THE CHARACTERISTICS OF ORE-CONTROLLING FRACTURE AND THE ORE-CONTROLING REGULARITIES IN PANGXIDONG Ag(Au) DEPOSIT, NORTHWEST GUANGDONG[J].Contributions to Geology and Mineral Resources Research,2005,20(3):161-165. | |
| Authors: | SUN Hua-shan CAO Xin-zhi and ZHANG Ke |
| Institution: | Resources faculty of China University of Geosciences, Wuhan 430074, China;Graduate school of China University of Geosciences, Wuhan 430074, China;Resources faculty of China University of Geosciences, Wuhan 430074, China;Graduate school of China University of Geosciences, Wuhan 430074, China |
| Abstract: | 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. |
| Keywords: | Characteristics of ore-controlling structure Regularities of structure controlling ore Pangxidong Ag(Au) deposit Northwest Guangdong province |
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