| 墨西哥中新生代岩浆活动规律及成矿研究 |
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| 引用本文： | 王力圆,邱瑞照,王翠芝,林木森,谢其锋,杨波.墨西哥中新生代岩浆活动规律及成矿研究[J].地质找矿论丛,2017,32(4):667-675. |
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| 作者姓名： | 王力圆 邱瑞照 王翠芝 林木森 谢其锋 杨波 |
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| 作者单位： | 福州大学紫金矿业学院, 福州 350116,中国地质调查局发展研究中心, 北京 100083,福州大学紫金矿业学院, 福州 350116,福州大学紫金矿业学院, 福州 350116,福州大学紫金矿业学院, 福州 350116,成都理工大学"油气藏地质及开发工程"国家重点实验室, 成都 610059 |
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| 基金项目： | 中国地质调查局“全球主要矿产资源分布与潜力分析研究”项目,成都理工大学研究基金项目 |
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| 摘 要： | 墨西哥中新生代岩浆作用与太平洋板块向东俯冲消减作用及晚白垩-始新世的拉腊米期造山运动有关,岩浆作用控制了矿床的分布规律。文章通过综合分析大量墨西哥中新生代岩浆岩和矿床资料,讨论了岩浆活动规律及构造活动和成矿作用的关系。墨西哥主要有5个岩浆活动时期,分别为晚古生代岩浆作用、早-中侏罗世岩浆作用、白垩世岩浆作用、古近纪岩浆作用、中新世岩浆作用。墨西哥的成矿作用主要与拉腊米期岩浆活动有关(约80 Ma—40 Ma),中新生代的矿床明显分成晚侏罗世(J3)、早白垩世(K1)、晚白垩世(K2)、古新世(E1)、始新世(E2)、渐新世(E3)、中新世(N1)等地质时期。古太平洋板块、法拉隆板块和科科斯板块等三大板块俯冲消减形成3个俯冲成矿系列,即从沿海到内陆依次发育有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岩浆成矿环境。
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| 关 键 词： | 墨西哥 岩浆作用 中新生代 拉腊米期 成矿规律 成矿带 |
| 收稿时间： | 2016/6/8 0:00:00 |
| 修稿时间： | 2017/10/19 0:00:00 |
Mesozoic-Cenozoic magmatism and mineralization in Mexico |
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| WANG Liyuan,QIU Ruizhao,WANG Cuizhi,LIN Musen,XIE Qifeng and YANG Bo.Mesozoic-Cenozoic magmatism and mineralization in Mexico[J].Contributions to Geology and Mineral Resources Research,2017,32(4):667-675. |
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| Authors: | WANG Liyuan QIU Ruizhao WANG Cuizhi LIN Musen XIE Qifeng and YANG Bo |
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| Affiliation: | College of Zijin Mining, Fuzhou University, Fuzhou 350116, China,Development and Research Center, Geological Survey, Beijing 100083, China,College of Zijin Mining, Fuzhou University, Fuzhou 350116, China,College of Zijin Mining, Fuzhou University, Fuzhou 350116, China,College of Zijin Mining, Fuzhou University, Fuzhou 350116, China and State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | Mesozoic-Cenozoic magmatism in mexico is related to the Laramide Late-Cretaceous-Eocene orogeny and the eastward subduction of the Pacific Ocean plates and magmatism control the distribution of ore deposits.In this paper large volume data about Mexican Mesozoic-Cenozoic magmatic rocks and ore deposits are analyzed and relationship between the magmatic activity and tectonics/mineralization discussed.Mesozoic-Cenozoic magmatism in Mexico took place mainly in 5 periods,i.e.Late Paleozoic Era,early-middle Jurassic Epoch,Cretaceous Epoch,Paleogene and Miocene.Mineralization is mainly related with Laramide magmatism (ca 80～40 Ma) and took place mainly in Late Jurassic Epoch(J3),Early Cretaceous Epoch (K1),Late Cretaceous Epoch (K2),Palaeocene (E1),Eocene(E2),Oligocene (E3) and Miocene (N1).There are 3 metallogenic series related to subduction of the ancient Pacific plate,Faralon plate and Cocos plate respectively,i.e.IOCG type Fe,Cu,Au ore belt→porphyric Cu,Mo,Au ore belt→epithermal Ag polymetal ore belt from coastal area to inland. |
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| Keywords: | Mexico magmatism Mesozoic-Cenozoic Era Laramide Epoch regularity of ore formation metallogenic belt |
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