广元市英萃镇一带米仓山构造岩浆岩带地球化学特征及构造环境研究  

Study on the Geochemical Characteristics and Tectonic Environment of the Micangshan Tectonic Magmatic Zone in the Area of the Guangyuan City of Ying Chi

作　　者：陈小涛[1] 谢启兴[1] 齐伟 CHEN Xiaotao;XIE Qixing;QI Wei(Northwest Geological Teamof Sichuan Bureau of Geology and Mineral Resources,Mianyan 621000,China)

机构地区：[1]四川省地矿局川西北地质队,四川绵阳621000

出　　处：《四川有色金属》2018年第1期11-13,69,共4页Sichuan Nonferrous Metals

摘　　要：米仓山构造岩浆岩米仓山杂岩体中的中侵入岩主要分布于测区东部广元市英萃镇一带,为米仓山侵入岩的西缘部分,岩石类型主要由辉长岩、闪长岩、石英闪长岩、英云闪长岩、正长花岗岩组成根据岩石学、岩石化学、稀土元素、微量元素特征,中酸性侵入岩中辉长岩-闪长岩-石英闪长岩-英云闪长岩,结合区域地质背景认为该岩体属于汇聚俯冲环境。Mainly distributed in the eastern city of Guangyuan area measured Ying Cui town area Micangshan tectonic magmatite intrusive rocks in the Micangshan complex meters in the western margin of Micangshan intrusive rocks,rock types mainly consist of gabbro,diorite,Shi Yingshan diorite,tonalite,syenite granite rocks according to the petrology,petrochemistry,REE and trace elements characteristics of intermediate acidic intrusive rocks gabbro diorite and quartz diorite tonalite,combined with the regional geological background that the rock belongs to convergent subduction environment.

关 键 词：广元 米仓山 岩浆岩 地球化学特征 

分 类 号：P618[天文地球—矿床学]