文章摘要
谢晓华,陈培荣.安徽马头矿床钼矿化特征和成因[J].矿产勘查,2022,13(5):592-599
安徽马头矿床钼矿化特征和成因
The molybdenum mineralization and metallogenesis of the Matou deposit, Anhui
投稿时间:2021-03-12  
DOI:10.20008/j.kckc.202205006
中文关键词: 钼矿化特征  矿化石英脉  矿化节理面  马头矿床  地质调查工程
英文关键词: molybdenum mineralization  ore-quartz veins  joint plane with ore  Matou molybdenum deposit  geological survey project
基金项目:
作者单位
谢晓华 江苏华东有色深部地质勘查有限责任公司, 江苏 南京 210041 
陈培荣 南京大学地球科学与工程学院, 江苏 南京 210023 
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中文摘要:
      安徽马头钼矿床位于池州市南部,属于长江中下游多金属成矿带的一部分。为了解该钼矿的矿化特征和成因,对前人研究成果、地质背景、矿区地质、矿化特征和成因进行了研究。研究发现,安徽马头钼矿床下冲矿段含矿围岩主要为蚀变花岗闪长斑岩和蚀变砂岩,每种岩性都包含两种矿化形式:石英脉型和节理面型。统计了79条矿化石英脉和111条矿化节理面的产状,结果显示:含矿石英脉产状以北东向为主,矿化节理面产状以北西向为主,北西向是主要成矿方向。含矿石英脉属于早期成矿,矿化节理面属于晚期成矿,晚期的矿化节理面是马头下冲矿段主要成矿时期,矿床主要受构造控制。因此,围绕与花岗岩斑岩钼矿有关的深部接触带区域来规划新的工作方向,对实现长江中下游多金属成矿带中的金属分布关系位置再认识,具有重大战略意义。
英文摘要:
      The Matou molybdenum deposit, located in the south sector of Chizhou City, Anhui Province, has long been regarded as a porphyry molybdenum deposit within the Middle and Lower Yangtse River metallogenic belt (MLYMB).To further recognize that the characteristic and metallogenies, we reviewed the research articles, geological background, geological characteristic and metallogenies of the deposit. We present that the ore-hosting rocks are mainly divided into altered sandstone and altered granodiorite porphyry in Xiachong ore block, Matou deposits. Each ore-hosting rock including two types of mineralization:the ore-quartz veins type and joint plane type with significant molybdenum. The geological survey statistics based on the model of occurrence:79 the ore-quartz veins and 111 joint planes with molybdenite. The results reveals that the ore-quartz veins dominated at NE trending structure, the attitude of joint planes with molybdenite at NW trending structure. The major mineralization zone located at NW trending structure. It based on the intersection of mineralization relationship, the ore-forming age dived into two periods:the ore-quartz veins era and the joint planes era. Absolutely, the joint planes produce the major mineralization in Xiachong ore block, Matou deposits,and ore-formed mainly controlled by structure. Furthermore, it is based on the exploration and research on the deep contact zone of porphyry molybdenum deposit will be one of strategy factor in which recognize the distribution and relationship of MLYMB precisely.
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