墨西哥中——新生代成矿系列和成矿带划分及其大地构造意义  

Classification of the Mesozoic-Cenozoic metallogenic series and belts in Mexico and its tectonic significance

作　　者：王翠芝[1] 雷华 姚仲友[3] 赵珍梅 谢其锋[1] 王力圆[1] 林木森[1] 范明森 陈丽华 WANG Cuizhi;LEI Hua;YAO Zhongyou;ZHAO Zhenmei;XIE Qifeng;WANG Liyuan;LIN Musen;FAN Mingsen;CHEN Lihua(Zijin Mining College of Fuzhou University, Fuzhou 350108, Fujian, China;Institute of Mineral Resources Research, China Metallurgical Geology Bureau, Beijing 101300, China;Nanjing Center, China Geological Survey, Nanjing 210016, Jiangsu, China;School of Earth Science and Engineering, Nanjing University, Nanjing 210046, Jiangsu, China;Zijinshan Copper and Gold Mine of Zijin Mining Group, Longyan 304200, Fujian, China)

机构地区：[1]福州大学紫金矿业学院,福建福州350108 [2]中国冶金地质总局矿产资源研究院,北京101300 [3]中国地质调查局南京地质调查中心,江苏南京210016 [4]南京大学地球科学与工程学院,江苏南京210046 [5]紫金矿业集团紫金山铜金矿,福建龙岩304200

出　　处：《地质通报》2017年第12期2116-2123,共8页Geological Bulletin of China

基　　金：中国地质调查局项目<全球主要矿产资源分布与潜力分析研究>(编号:1212011120327);<墨西哥岩浆-成矿事件研究>(编号:中地调研[2015]314)和<海上丝绸之路大洋洲和南美洲矿产资源潜力评价>(编号:DD20160110)

摘　　要：墨西哥是矿产资源大国,其中产量最高的包括银、铜、铁、铅锌等。这些矿产的生成主要源于多种多样的矿床类型和各式各样的矿化类型,其中浅成低温热液型、斑岩型、矽卡岩型、IOCG(铁氧化物铜金)型是最突出的矿床类型。这些矿床的形成与北科迪勒拉山系的形成有关,体现了联合大陆长期积聚或解体的某些阶段,尤其是中新生代成矿带的空间展布特征与其形成的大地构造环境密切相关。划分的9个构造-岩浆-成矿带,分别形成3个俯冲成矿系列,即从沿海到内陆依次发育的IOCG型铁铜金成矿带→斑岩型铜钼金成矿带→浅成低温热液型银金多金属成矿带,分别代表太平洋古板块、法拉隆板块和科科斯板块向北美板块从俯冲、挤压到碰撞后伸展的板块构造岩浆成矿环境。这类俯冲边界型成矿系统的主体部分是西马德里造山带岩浆弧中的斑岩型铜钼矿成矿系统和盆岭省中的火山岩控制的浅成低温热液型银金矿成矿系统。Mexico is a great production country in mineral resources such as in silver,copper,iron,lead and zinc with the highest output of these resources.The generation of these minerals is mainly attributed to a variety of types and all kinds of mineralization types of ore deposits.Among these types,the epithermal type,porphyry type,skarn type,IOCG type are the most prominent types.The formation of these deposits is related to the formation of the cordilleras,which embodies some stages of long-term accumulation or disintegration of the united continent.The spatial distribution characteristics of Mesozoic-Cenozoic metallogenic belts,in particular,are closely related to the tectonic environment.The authors recognized nine tectonic-magmatic metallogenic belts,which respectively form three subductional metallogenic serie:from the coast to the inland,they are the IOCG iron-copper mineralization zone,the porphyry gold-copper-molybdenum mineralization zone and the epithermal gold-silver polymetallic metallogenic belt,which represent the plate tectonic magmatic metallogenic environment from subduction,extrusion to post-collision stretching of the Pacific plate,Farallon plate and Cocos plate towards the North American plate.Mexican subduction boundary metallogenic systems are mainly reflected in the porphyry copper-molybdenum metallogenic system of the magmatic arc in the west Madre orogenic belt and the silver-gold hypothermal metallogenic system controlled by volcanic rocks in the basin-ridge province.

关 键 词：墨西哥 中-新生代 成矿系列 成矿带 大地构造 

分 类 号：P534.5[天文地球—古生物学与地层学] P534.6P612[天文地球—地质学]