TECTONIC ORE-CONTROLLING IN THE MIDDLE-SOUTHERN SEGMENT OF DA HINGGAN LING, NORTHEAST CHINA  

作　　者：牛树银 郭利军 刘建明 邵济安 王宝德 胡华斌 孙爱群 王硕 

机构地区：[1]GEOLOGICAL SURVEY INSTITUTION OF SHIJIAZHUANG ECONOMICS COLLEGE, SHIJIAZHUANG 050031, CHINA [2]BUREAU OF GEOLOGY AND MINERAL RESOURCE DEVELOPMENT OF INNER MONGOLIA, HOHHOT 010020, CHINA [3]INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES, BEIJING 100029, CHINA [4]COLLEGE OF EARTH AND SPACE SCIENCES, PEKING UNIVERSITY, BEIJING 100871, CHINA

出　　处：《Chinese Journal Of Geochemistry》2006年第1期62-70,共9页中国地球化学学报

基　　金：JOINTLYGRANTEDBYTHEKEYSCIENTIFICRESEARCHPROJECTOFINNERMONGOLIAGEOLOGICALSURVEY(200405)ANDTHENATIONALNATURALSCIENCEFOUNDATIONOFCHINA(GRANTNOS.40272088,40372103).

摘　　要：Studies on geotectonic evolution, regionally geological characteristics and ore-forming and ore-controlling structures have shown that since the Mesozoic the Da Hinggan Ling region has entered the typical intercontinental orogenic stage, which appears to be closely related to mantle plume activities. Da Hinggan Ling is a typical mantle branch structure and possesses obvious magmatic-metamorphic complexes in the core, detachment slip beds in the periphery and overlapped fault depression basins. Moreover, all these are the principal factors leading to ore formation and ore controlling in the region. This paper also further explores the mechanism of mineralization in the middle-southern segment of Da Hinggan Ling, summaries the rules of mineralization, puts forward the models of mineralization and points out the ore-search orientations in the future time.Studies on geotectonic evolution, regionally geological characteristics and ore-forming and ore-controlling structures have shown that since the Mesozoic the Da Hinggan Ling region has entered the typical intercontinental orogenic stage, which appears to be closely related to mantle plume activities. Da Hinggan Ling is a typical mantle branch structure and possesses obvious magmatie-metamorphie complexes in the core, detachment slip beds in the periphery and overlapped fault depression basins. Moreover, all these are the principal factors leading to ore formation and ore controlling in the region. This paper also further explores the mechanism of mineralization in the middle-southern segment of Da Hinggan Ling, summaries the rules of mineralization, puts forward the models of mineralization and points out the oresearch orientations in the future time.

关 键 词：地幔分支结构 热流柱 矿石 地质勘探 深部构造 

分 类 号：P548[天文地球—构造地质学]