A preliminary study on the volcanic intrusive complex type beryllium metallogenic belt from the southeast coast of China  

作　　者：Can RAO Rucheng WANG Fuyuan WU Xudong CHE Xiaofeng LI Qi WANG Zhiqi ZHANG Runqiu WU 

机构地区：[1]Key Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province,School of Earth Sciences,Zhejiang University,Hangzhou,310027,China [2]State Key Laboratory for Mineral Deposits Research,School of Earth Sciences and Engineering,Nanjing University,Nanjing,210023,China [3]State Key Laboratory of Lithosphere Evolution,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,100029,China

出　　处：《Science China Earth Sciences》2022年第8期1586-1600,共15页中国科学（地球科学英文版）

基　　金：supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.92062212);the Key Deployment Project of Institute of Geology and Geophysics,Chinese Academy of Sciences(Grant No.IGGCAS-201902)。

摘　　要：Beryllium(Be)is one of the unsubstitutable key metals in strategic emerging industries and national defense industries,mainly originating from volcanogenic Be deposits.Thus,volcanogenic Be deposits have become important research objects of key metal deposits,with a focus on their occurrence,metallogenic mechanism,and resource distribution.In the southeast coast of China,the Late Mesozoic volcanic intrusive complex has a good Be metallogenic background,and strong Be mineralization occurs in some areas.Field geological investigation and analyses of samples from Southeast Zhejiang as well as Northeast and Southeast Fujian indicate that Be mineralization in the southeast coast of China is closely related to the hydrothermal processes in the volcanic intrusive complex.In Southeast Zhejiang,Be ore in the Qingtian area mainly occurs in granite porphyry,with the Be content reaching 939 ppm,while strong Be mineralization from Zhangji rhyolite porphyry in the Pingyang area contains up to 11400 ppm Be.In Xiapu County,Northeastern Fujian,the Dawan Be deposit is characterized by constituents of helvite and beryl.In Pinghe County,Southeastern Fujian,the Fulishi Be ore is a quartz vein beryl-type ore.These results suggest that the volcanic intrusive complex area in the southeast coast of China has a wide range of Be mineralization and better Be metallogenic potential,and it is expected to become an important Be metallogenic belt in China.Thus,we should thoroughly investigate the Be resources of granite porphyry,rhyolite porphyry,quartz porphyry,and quartz vein in this volcanic rock area,which can provide a theoretical basis for the exploration and guiding prospecting of volcanic intrusive complex Be deposits.

关 键 词：Volcanogenic Be deposit Beryllium resources Be-bearing minerals Beryllium metallogenic belt Southeast coast of China 

分 类 号：P618.72[天文地球—矿床学]