长江中下游成矿带铜陵矿集区层控硫化物矿床成因研究进展
Received:August 23, 2020  Revised:December 26, 2020  点此下载全文
引用本文:CHEN YiXiu,YANG Dan.2021.Research progress on genesis of stratabound sulfide deposits in Tongling ore concentration area of Middle and Lower Yangtze River metallogenic belt[J].Mineral Deposits,40(1):128~142
Hits: 1479
Download times: 1592
Author NameAffiliationE-mail
CHEN YiXiu MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China
China University of Geosciences, Beijing 100083, China 
 
YANG Dan MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China yangd_2013@163.com 
基金项目:本文得到自然科学基金项目“长江中下游成矿带深部结构、过程及对成矿的制约——集成研究(编号:41630320)”和“VMS型矿床成矿流体来源及其演化过程:来自四川呷村矿床的锂同位素证据(编号:41573038)”资助
中文摘要:安徽铜陵矿集区是长江中下游成矿带内重要的多金属成矿区,该矿集区具有大规模的成矿作用和多种类型的复杂成矿系统演化,找矿潜力大,研究程度较高。区内广泛发育一系列层状硫化物矿床,其成因问题一直是中国矿床学界争议的焦点之一。文章从成矿年代学、成矿流体来源以及成矿物质来源等方面,对近半个世纪以来国内外学者对该矿集区内层控硫化物矿床成因研究的主要成果进行了初步归纳,并对对铜陵矿集区的成矿规律和成矿机制取得了一些新的认识:①铜陵矿集区的层状硫化物矿床的成矿过程包含海西期海底喷流沉积和燕山期岩浆热液叠加富集两个阶段,但是对于不同矿床的贡献是有差异的,具体到单个矿床需要结合多种方法进行详细分析;②燕山期岩浆热液交代改造、叠加富集成矿作用发生在早白垩世,大约持续20 Ma,峰值在140 Ma左右;③燕山期含矿岩浆从早到晚岩石地球化学上表现出由中基性→中酸性→中性的演化趋势,以岩浆活动高峰期(140 Ma±)的花岗闪长岩成矿规模最大,这种成矿偏好性是否与深部岩浆源区性质有关值得深入研究;④目前关于海西期喷流沉积作用对成矿的贡献的工作很少,期望对其有正确客观的评价。
中文关键词:地质学  长江中下游成矿带  铜陵矿集区  层控硫化物矿床  矿床成因
 
Research progress on genesis of stratabound sulfide deposits in Tongling ore concentration area of Middle and Lower Yangtze River metallogenic belt
Abstract:The Tongling ore concentration area in Anhui Province, an important polymetallic ore-forming area in the Yangtze River metallogenic belt, is characterized by large-scale mineralization and evolution of various types of complex metallogenic systems. A series of stratiform sulfide deposits are widely developed in this area, and their genesis has been one of the controversial focuses in the field of deposit science in China. Based on the available data, this paper summarizes the main achievements and progress of the genetic study of stratabound sulfide depo-sits in the ore concentration area obtained in the past half century from the aspects of basic geological characteristics, metallogenic chronology, ore-forming fluid sources and ore-forming material sources and puts forward some new knowledge:① The metallogenic process of stratiform sulfide deposits in the Tongling ore concentration area included Late Carboniferous sedimentary-exhalative processes and Yanshanian magmatic hydrothermal superimposed enrichment; however, their contribution to different deposits was different, and a variety of methods should be combined to conduct a detailed analysis for a single deposit; ② Yanshanian magmatic hydrothermal metasomatism as well as superimposed enrichment and mineralization took place in the Eearly Cretaceous, with the peak age being about 140 Ma; ③ The geochemical characteristics of Yanshanian metallogenic magma show an evolutionary trend from intermediate-mafic through intermediate-acidic to intermediate nature from early to late. The largest metallogenic event was caused by granodiorite (peak of magmatic activity (140 Ma±)). Whether this metallogenic preference was related to the nature of deep magma source area is worthy of further study; ④ At present, there is little work to objectively evaluate the contribution of Late Carboniferous sedimentary-exhalative processes, and hence it is expected to have a correct and objective evaluation.
keywords:geology  Middle and Lower Yangtze River metallogenic belt  Tongling ore concentration area  stratiform sulfide deposits  genesis of ore deposits
View Full Text  View/Add Comment  Download reader
You are a visitor6296102  Beijing ICP for 05032737-5  Beijing 110102004559 male may be prepared
All Rights Reserved:《矿床地质》编辑部
The Competent Units:中国科学技术协会 The Organizer :中国地质学会矿床地质专业委员会 中国地质科学院矿产资源研究所
Address: 北京市百万庄大街26号 Zip Code :100037 The Phone :010-68327284;010-68999546 E-mail: minerald@vip.163.com
本系统由北京勤云科技发展有限公司设计 
手机扫一扫