硅质岩研究进展与思考  

Research progress on siliceous rock and considerations

作　　者：许汉华 周瑶琪[2] 刘文连 王光进[3] 杨志全[3] 程家龙[4] 左习超 Xu Hanhua;Zhou Yaoqi;Liu Wenlian;Wang Guangjin;Yang Zhiquan;Cheng Jialong;Zuo Xichao(Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co.,Ltd.,Yunnan Key Laboratory of Geotechnical Engineering and Geohazards,Kunming Yunnan 650051,China;School of Geosciences,China University of Petroleum(East China),Qingdao Shandong 266580,China;Kunming University of Science and Technology,Kunming Yunnan 650093,China;Yunnan Institute of Geology&Mineral Resources Exploration,Yunnan Kunming 650051,China;China Nonferrous Metals Industry Technology Development and Exchange Center Co.,Ltd.,Beijing 100038,China)

机构地区：[1]中国有色金属工业昆明勘察设计研究院有限公司,云南省岩土工程与地质灾害重点实验室,云南昆明650051 [2]中国石油大学(华东)地球科学与技术学院,山东青岛266580 [3]昆明理工大学,云南昆明650093 [4]云南省地质矿产勘查院,云南昆明650051 [5]中国有色金属工业技术开发交流中心有限公司,北京100038

出　　处：《化工矿物与加工》2023年第2期68-80,共13页Industrial Minerals & Processing

基　　金：国家自然科学基金项目(41272123);中央高校基本科研业务费专项资金项目(13CX06016A)。

摘　　要：硅质岩具有独特的物理与地球化学性质,能够较好地保留形成时的古地理、古环境和沉积相带等信息,可以为解决硅质岩的硅质来源、成因模式及沉积环境等地质问题提供有利条件,同时也可以为找油、找矿提供重要指导与借鉴。国内外硅质岩研究主要集中在硅质岩沉积与成岩作用、成因类型、硅质源区和环境示踪等方面,研究手段主要有岩石学特征、地球化学分析等传统方法以及扫描电镜、流体包裹体、阴极发光等新方法。阐述了硅质岩的岩相学特征及沉积成岩作用,总结了主量元素、微量元素、稀土元素及硅氧同位素等地球化学特征的研究现状,系统探讨了硅质岩不同成因模式及其沉积环境,指出了当前研究中存在的问题,并对未来的硅质岩研究工作提出了若干思考。For its unique physical properties and geochemical characteristics,some information about siliceous rock such as ancient geography,palaeo-environment and sedimentary facies is readily reserved as the origin,which facilitates understanding of siliceous source,genetic mode and depositional environment of siliceous rock and provides gui-dance or reference for exploration of mineral and oil resources.The oversea research work on siliceous rock was focused on sedimentation and formation,genetic mode,siliceous sources of rocks,and environment tracing either by means of conventional analysis based on petrology and geochemistry,or by new techniques including scanning electron microscope,fluid inclusions,and cathode luminescence.In this paper petrographic characteristics,and sedimentary formation of siliceous rock were described,the research status of geochemical characteristics of major elements,trace elements,rare earth elements and silicon-oxygen isotopes was reviewed,different genetic modes and depositional environment of siliceous rock were systematically discussed.Finally,existing problems of current study was presented,thus some suggestions on further study of siliceous rock may be taken into consideration.

关 键 词：硅质岩 成因模式 沉积环境 地球化学特征 岩相学特征 硅质来源 

分 类 号：P595[天文地球—地球化学]