摘要
基于勉略宁三角区晚太古代以来的构造体制转换与成矿作用模式研究,系统总结并建立了三角区四大成矿系统与八个成矿系列。在此基础上,探讨了区内优势矿种成矿类型和时空分布规律,分析了成矿系统内主要成矿系列成矿作用与控矿地质因素,总结了找矿标志;结合勉略宁三角区新元古代海底火山作用的广泛性与特殊性,探讨了古火山机构与多金属矿床成矿的时空耦合规律与成因联系,并对区内"界面"成矿作用规律进行了总结。
Based on structural transformation and metallogenic model in Mian-Lue-Ning triangle area since Archean,four major metallogenic systems and eight metallogenic series are summarized and established.The spatial and temporal distribution of the major ore deposit types of metallogenic types is discussed,the metallogenic process and ore-controlling geological factors of major ore deposits in the metallogenic system are analyzed,the prospecting indicator is also summarized.Combined with the extensiveness and particularity of Neoproterozoic volcanism in Mian-Lue-Ning triangle area,the spatiotemporal and genetic relationship between volcanic mechanism and polymetallic deposits is further discussed,and the regularity of"interface"mineralization is summarized.
作者
杨运军
韩旭
杜少喜
Yang Yunjun;Han Xu;Du Shaoxi(Shaanxi Center of Mineral Geological Survey,Xi’an 710065,China;Shaanxi Institute of Geological Survey,Xi’an 710054,China)
出处
《科技通报》
2020年第7期4-13,共10页
Bulletin of Science and Technology
基金
陕西省公益性基础地质调查专项-陕西省勉略宁地区基础地质调查(编号20150102)
陕西省勉略宁西部铜镍多金属矿深部地质调查(编号20180102)。
关键词
勉略宁三角区
成矿系统
成矿规律
Mian-Lue-Ning triangle area
metallogenic system
metallogenic regularity
