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大兴安岭中生代两期成岩成矿作用的元素、同位素特征及其形成环境
引用本文:祝洪臣,张炯飞,权恒.大兴安岭中生代两期成岩成矿作用的元素、同位素特征及其形成环境[J].吉林大学学报(地球科学版),2005,35(4):436-442.
作者姓名:祝洪臣  张炯飞  权恒
作者单位:沈阳地质矿产研究所,辽宁,沈阳,110032
基金项目:中国地质调查局科研项目
摘    要:从成岩成矿方面论证了大兴安岭地区存在两期岩浆-成矿作用,它们分别形成于早、中侏罗世和晚侏罗世-早白垩世.早期构造-岩浆-成矿作用形成于造山环境,成岩、成矿物质来源较深,以幔源为主,成矿主岩为钙碱系列中酸性浅成侵入岩,主要矿种为Cu;晚期构造-岩浆-成矿作用形成于伸展环境,成岩、成矿物质来源较浅,以壳源为主,成矿主岩为酸性浅成侵入岩,主要矿种为Sn.

关 键 词:大兴安岭  中生代  两期成岩成矿作用  大兴安岭  中生代  两期  成岩成矿  成矿作用  元素  素特征  形成环境  Mineralization  中酸性  晚期构造  矿种  侵入岩  钙碱系列  主岩  幔源  物质来源  早期  早白垩世  晚侏罗世
文章编号:1671-5888(2005)04-0436-07
收稿时间:2004-08-03
修稿时间:2004年8月3日

Two Stages of Mesozoic Lithogenesis and Mineralization in Daxing' anling Mountains
ZHU Hong-chen,ZHANG Jiong-fei,Quan Heng.Two Stages of Mesozoic Lithogenesis and Mineralization in Daxing'''' anling Mountains[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(4):436-442.
Authors:ZHU Hong-chen  ZHANG Jiong-fei  Quan Heng
Abstract:From the perspective of lithogenesis and mineralization, two stages of lithogenesis and mineralization in Daxing'anling Mountains have been studied. They were J_(1)-J_(2) and J_(3)-K_(1). The hydrothermal deposits which are mainly copper deposits formed in the early orogenic setting, and those mainly stannum deposits formed in late extending setting. The matter formed rocks and deposits in early stage mainly came from the earth mantle, and that in late stage was mainly from the crustal layer. The host rocks formed in early stage, which belong to calc-alkali series, were acid and neutral hypabyssal ones, and those formed in late stage were acid hypabyssal ones belonging to calc-alkali series.
Keywords:Daxing'anling Mountains  Mesozoic  two stages of lithogenesis and mineralization  
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