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作 者:付超 李俊建[1] 党智财 张彤[2] 彭翼[3] 宋立军 侯占国 倪振平[6] FU Chao;LI Junjian;DANG Zhicai;ZHANG Tong;PENG Yi;SONG Lijun;HOU Zhanguo;NI Zhenping(Tianjin Center of China Geological Survey,Tianjin 300170,China;Inner Mongolia Bureau of Geological Survey,Hohhot 010020,China;Geological Survey of Henan Province,Zhengzhou 450007,China;Geological Survey of Hebei Province,Shijiazhuang 050081,China;Geological Survey of Shanxi Province,Taiyuan 030006,China;Geological Survey of Shandong Province,Jinan 250013,China)
机构地区:[1]中国地质调查局天津地质调查中心,天津300170 [2]内蒙古自治区地质调查院,呼和浩特010020 [3]河南省地质调查院,郑州450007 [4]河北省地质调查院,石家庄050081 [5]山西省地质调查院,太原030006 [6]山东省地质调查院,济南250013
出 处:《地质找矿论丛》2021年第1期1-11,共11页Contributions to Geology and Mineral Resources Research
基 金:中国地质调查局项目(编号:DD20190379-31、1212011121029、200110200038、DD20190155);国家重点研发计划“深地资源勘查开采”重点专项(编号:2016YFC0600107、2018YFC0603805-1)联合资助。
摘 要:华北地区铅锌矿资源丰富、类型多样,是我国铅锌矿床的重要产区。本文在总结资源禀赋、矿床类型、时空特征、主要控矿因素、资源潜力等要素基础上,较全面分析了华北地区铅锌矿的主要特征和成矿规律。研究表明,从矿床成因角度,华北地区铅锌矿可划分为岩浆热液型、碳酸盐岩—细碎屑岩型、陆相火山岩型、矽卡岩型、斑岩型、碳酸盐型等6种类型,并可划归“层控”型和“岩控”型两大类;从矿产预测角度,又可划分为26个矿产预测类型,其中以碳酸盐岩—细碎屑岩型、岩浆热液型铅锌矿最为重要。基于华北地区铅锌成矿演化规律,华北地区铅锌成矿期可划分为中元古代、早古生代、晚古生代和中生代4个主要时期,中元古代、中生代是铅锌成矿的高峰期。华北地区铅锌成矿受控于区域构造、沉积火山岩系、中酸性侵入岩等多种因素,经历了长期且复杂的构造演化,“层控”型和“岩控”型矿床的成矿环境各有不同,成矿作用特征具有明显差异。经综合评价,华北地区的铅锌成矿可划分为34个铅锌找矿远景区,显示出良好的找矿资源潜力。The North China is abundant with Pb-Zn resources and various genetic types occur thus is an important production area of Pb,Zn in China.Based on the resource endowment,deposit type,space-time distribution,main ore controlling factors and resource potential,this paper comprehensively analyzes the main characteristics and regional metallogeny.From the perspective of ore genesis,the Pb-Zn deposits in North China can be divided into six types:magmatic hydrothermal type,carbonate-fineclastic rock type,continental volcanic type,skarn type,porphyry type and carbonate type,which can be in turn classified into“stratabound”and“rock controlled”types.From the perspective of mineral prediction,lead-zinc deposits in North China can be divided into 26 types,of which SEDEX type and magmatic hydrothermal type are the most important.According to the temporal evolution the Pb-Zn mineralization can be divided into four main stages:Mesoproterozoic,Early Paleozoic,Late Paleozoic and Mesozoic,among which the Mesoproterozoic and Mesozoic are the peak periods.The Pb-Zn mineralization is controlled by many factors,such as regional structure,sedimentary-volcanic rock series,intermediate acid intrusive rock and so on and exposed to a long time and complex tectonic evolution.The“stratabound”and“rock controlled”deposits differ in ore-forming environments with obviously different mineralization characteristics.On the basis of the evaluation of mineral resources potential,34 targets can be lineated.
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