华南地区中生代构造控矿规律探讨  

CHARACTERISTICS OF STRUCTURAL CONTROL OF ORE DEPOSITION IN SOUTH CHINA IN THE MESOZOIC

作　　者：韦昌山[1] 蔡明海[2] 蔡锦辉[2] 汪雄武[2] 车勤建 杜海燕 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]宜昌地质矿产研究所,宜昌443003 [3]湖南地质调查院,长沙410011 [4]广东地质调查院,广州510080

出　　处：《地质力学学报》2004年第2期113-121,共9页Journal of Geomechanics

基　　金：中国地质调查局国土资源大调查项目"华南成矿区成矿规律与找矿方向综合研究"(200110200026)资助。

摘　　要：根据华南地区近期矿产资源调查评价及综合研究资料,本文简要总结从岩石圈至微破裂网络等不同层次构造控矿特征,包括深部岩石圈拆沉减薄及相关的构造成矿(域)动力学体制转换→区域构造减薄带及相关富碱(A型)岩浆组合控制区域成矿带(矿集区)展布→构造复合部位控制小(斑)岩体及相关的矿田(床)分布→主干断裂及圈闭组合有关的伴生、派生裂隙网络控制矿体产出→构造变形动力学转换及相关水压致裂控制矿质富集等,特别强调与中生代岩石圈拆沉作用相关的不同尺度张性构造系统的控矿主导作用,这对于华南地区区域成矿分析和矿产勘查均具有重要意义。According to the recent survey evaluation and integrated study of mineral resources in South China,this paper summaries the characteristics of structural control of ore deposition at different spatial levels,from the lithosphere to microfracture networks,including deep lithosphere delamination and thinning and related geodynamic regime transition of tectono-metallogonic domains→control of distribution of metallogenic belts (ore concentration areas) by regional tectonic thinning zones and related alkali-rick (A-type) mogma assoications→control of distribution of small (porphyry) rock bodies and related ore fields (deposits) by structural compounding loci→control of occurrence of orebodies by major faults and their associated and derivative fracture networks→control of concentration of ore substances by dynamic transition of structure deformation and related hydrofracturing.It put special emphasis on the dominant role that tensile structural systems of different scales related to mesozoic lithospheric delamination play in controlling ore deposition.This has great significance for the metallogenic analysis and mineral exploration.

关 键 词：中生代 构造控矿 岩石圈 矿产资源调查 

分 类 号：P617[天文地球—矿床学] P534.5[天文地球—地质学]