华北地区成矿单元划分  

Division of metallogenic units in North China

作　　者：李俊建[1,2] 彭翼 张彤[4] 宋立军[5] 倪振平 周继华[7] 白立兵[4] 郭国海[7] 党智财 LI Jun-jian;PENG Yi;ZHANG Tong;SONG Li-jun;NI Zhen-ping;ZHOU Ji-hua;BAI Li-bing;GUO Guo-hai;DANG Zhi-cai(Tianjin Center of China Geological Survey,Tianjin 300170,China;North China Center of Geoscience Innovation,Tianjin 300170,China;Henan Institute of Geological Survey,Zhengzhou 450007,China;Inner Mongolia Autonomous Institute of Region Geological Survey,Hohhot 010020,China;Geological Survey of Hebei Province,Shijiazhuang 050081,China;Shandong Institute of Geological Survey,Jinan 250013,China;Geological Survey of Shanxi Province,Taiyuan 030006,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]华北地质科技创新中心,天津300170 [3]河南省地质调查院,郑州450007 [4]内蒙古自治区地质调查院,呼和浩特010020 [5]河北省地质调查院,石家庄050081 [6]山东省地质调查院,济南250013 [7]山西省地质调查院,太原030006

出　　处：《华北地质》2021年第3期4-24,共21页North China Geology

基　　金：中国地质调查局项目(DD20190379-31、1212011121029、200110200038);国家重点研发计划“深地资源勘查开采”重点专项课题(2016YFC0600107、2018YFC0603805-1)。

摘　　要：华北地区地处古亚洲、特提斯和环太平洋三大构造体系交汇部位,地质演化历史悠久,岩浆活动频繁,成矿地质条件优越,矿产资源丰富。已发现160余个矿种、15000余处矿产地,其中油气、煤矿、铀、金、稀土、钼、铁、铝土矿、铅锌银、石墨、萤石、磷、耐火粘土、金刚石等矿产储量占全国前列,构成了多处重要的国家级能源资源基地。近年来,随着地质调查、矿产勘查和科研工作的深入,原有矿产储量持续增加,同时不断有许多新地域、新层位、新类型、新深度的矿床/矿体发现,显示出华北地区具大的找矿潜力。本文在全国成矿单元划分基础上,结合最新研究成果,对华北地区重要成矿单元进行了统一厘定。提出该区Ⅰ级成矿域隶属于古亚洲成矿域、滨太平洋成矿域和秦祁昆成矿域,共划分出6个Ⅱ级成矿省,18个Ⅲ级成矿带,67个Ⅳ级成矿亚带和255个Ⅴ级矿集区。其中古亚洲成矿域涉及准噶尔和塔里木2个成矿省,划分出2个成矿带、4个成矿亚带和8个矿集区;滨太平洋成矿域涉及大兴安岭、华北陆块和秦岭-大别3个成矿省,划分出15个成矿带、62个成矿亚带和245个矿集区;秦祁昆成矿域涉及阿尔金-祁连成矿省,划分出河西走廊成矿带、阎地拉图成矿亚带和2个矿集区。依据主要金属矿床矿石矿物的Re-Os、Sm-Nd和^(40)Ar-^(39)Ar同位素年龄,提出二连-东乌旗成矿带自西向东成矿年龄逐渐变新(297 Ma~237.9 Ma~187.11 Ma~161.3 Ma~131 Ma),为一条华力西晚期、燕山期的斑岩型、接触交代型和热液型金属矿床成矿带,同时还是新生代油气、砂岩型铀矿集中区。North China is located at the intersection of the three major tectonic systems of Paleoasian, Tethys and circum Pacific. It has a long history of geological evolution, frequent magmatic activities, superior metallogenic geological conditions and rich mineral resources. More than 160 minerals and more than 15 000 ore producing areas have been discovered, among which the mineral reserves of oil and gas, coal, uranium, gold, rare earth,molybdenum, iron, bauxite, lead, zinc, silver, graphite, fluorite, phosphorus, refractory clay and diamond account for the forefront in China, forming many important national mineral resource bases. In recent years, with the deepening of geological survey, mineral exploration and scientific research, the original mineral reserves have continued to increase. At the same time, many new regions, new horizons, new types, and new depths of deposits/ore bodies have been discovered, showing the great prospecting potential in North China.Based on the national division of metallogenic units, combined with the latest research results, this paper makes a unified determination and division of important metallogenic units in North China.It is proposed that the metallogenic domains in grade I in this area belongs to the Paleo-Asian, the coastal Pacific and the QinQikun metallogenic domains. There are 6 metallogenic provinces in gradel Ⅱ, 18 metallogenic belts in grade Ⅲ, 67 metallogenic sub-belts in grade Ⅳ and255 metallogenic concentration areas in grade Ⅴ. Among them, Paleo-Asian metallogenic domain involves 2 metallogenic provinces in Junggar and Tarim, which are divided into 2 metallogenic belts, 4 metallogenic subbelts and 8 ore concentration areas;the coastal Pacific metallogenic domain involves the Daxinganling, the North China Block and the Qinling-Dabie 3 metallogenic provinces, divided into 15 metallogenic belts, 62 metallogenic sub-belts and 245 ore concentration areas;the Qin Qikun metallogenic domain involves Arerjin-Qilian metallogenic provinces, divided into the Hexi Corridor

关 键 词：成矿域 成矿省 成矿带 成矿亚带 华北地区 

分 类 号：P612[天文地球—矿床学]