地质找矿论丛2017,Vol.32Issue(4):667-675,9.DOI:10.6053/j.issn.1001-1412.2017.04.020
墨西哥中新生代岩浆活动规律及成矿研究
Mesozoic-Cenozoic magmatism and mineralization in Mexico
摘要
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.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Key words
Mexico/magmatism/Mesozoic-Cenozoic Era/Laramide Epoch/regularity of ore formation/metallogenic belt分类
天文与地球科学引用本文复制引用
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):667-675,9.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(编号 ()
1212011120327)、成都理工大学研究基金项目(编号:2017YG07)联合资助. (编号:2017YG07)