Distribution Characteristics and Metallogenic Regularity of Graphite Deposits in Qinling Orogen,China

作     者：FENG Yangwei QU Hongjun YANG Chenyi LV Lushi 

作者机构：State Key Laboratory of Continental DynamicsDepartment of GeologyNorthwest University Xi'an Institute of Geology and Mineral Resources Xi'an Center of Geological SurveyChina Geological Survey Key Laboratory for the Study of Focused Magmatism and Giant Ore DepositsMLR Shaanxi Earthquake Administration Aerophotogrammetrical Surveying and Remote Sensing BureauCNACG 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2015年第89卷第4期

页      面：1244-1263页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：financially supported by National Natural Science Foundation of China (NO.41390451 and NO.41172101) Science and technology research projects of China Coal Geological Bureau (2013-I-03) basic geological survey project of China Geological Survey (12120114083001) 

主　　题：Qinling orogen graphite deposits graphite gneiss Metallogenic regularity 

摘      要：Qinling orogen is one of the five main repository distribution provinces of large scale graphite resources. Graphite occurrence strata are multitudinous including NeoArchaean group to Neopaleozoic. Mineral deposit types are complete consisting of crystal flaky graphite deposit and aphanitic graphite deposit, ore types of the former are main graphite gneiss, graphite schist and graphitized marble, and ore types of the latter are main graphite layer metamorphosised from coal bed and graphitic carbargilite. At present, most graphite deposits with low research degree only implement preliminary investigations of the graphite resource, which has a good prospect. Based on the basic material of dozens of graphite deposits, spots and plays discovered in the Qinling orogen, this paper applied geologic multidisciplinary analysis method to disclose the graphite deposit types of the Qinling orogen, mainly through outdoors geologic survey and specimen examination with analysis of some typical deposits： regional metamorphism crystal graphite deposits and thermo-contact metamorphic aphanitic graphite deposits, with the control of latitudinally trending regional tectonic, graphite deposits of the Qinling orogen distribute sublatitudinally trending three large ore belts： I the Neoarchean-Proterozoic basement crystal graphite enrichment deposits zone along the south margin of North China plate; II the Carboniferous intermountain basin group aphanitic graphite enrichment deposits zone near the Shangdan suture of the West Qinling; III Paleozoic crystal graphite enrichment deposits zone in the Qinling paleomicroplate of the west part of the East *** are reached from multiple inquiries： Qinling multi-cycle complex continental collision orogen zone has experienced multiple tectonic framework transformation and polyphase tectonic thermal event from NeoArchean Erathem adjointing multiple graphite tectonic mineralization cycle. In the light of chief control of mineralization a