白云石化作用及白云岩问题研究述评  

Current Topics about Dolomitization and the Problem of Dolostones

作　　者：汤朝阳[1] 王敏[1] 姚华舟[2] 段其发[2] 赵希林[1] 

机构地区：[1]中国地质科学院研究生院,北京100037 [2]宜昌地质矿产研究所,湖北宜昌443003

出　　处：《东华理工学院学报》2006年第3期205-210,共6页Journal of East China Institute of Technology

基　　金：国家自然科学基金(40372004);中国地质调查局研究项目(200313000006)

摘　　要：近年来,关于白云石化作用及白云岩问题,取得了更深层次的发展。从白云石化作用入手,介绍根据古代白云岩的成因所建立的五个主要成因模式:蒸发作用模式、渗流-回流模式、混合白云石化模式、埋藏白云石化模式及海水白云石化模式,并介绍了国内外最新研究进展和成果。认为利用染色薄片鉴定、阴极发光显微镜观察、微量元素分析、碳氧稳定同位素测定及包裹体测温等综合手段进一步研究,最终将解决这些问题。Nowadays, the progress of research about dolomitization and the issue of dolostone has been acquired . The paper introduces some of hot-topics about dolomitization and the problem of dolomitite, including five genetic classification of dolomitization： 1. supratidal sabkha dolomitization with an origin of penecontemporaneous;2.. seepage-reflux dolomitization during the penecontemporaneous or early diagenetic stages;3, mixing-water dolomitization during the penecontemporaneous or early diagenetic stages ;4. dolomites resulted from the burial dolomitization during the late diagenetic stages;5, deep-sea water dolomitization. This article also point out that there are still many problems about dolomitite which need to be studied further. Some of preblems will be accounted by means of stained thin section microscopic identification, catholuminescence microscopic observation, trace elent analysis,carbon and oxgen isotope geochemistry ,and fluid inclusion analysis.

关 键 词：白云石化作用 白云岩 成因模式 

分 类 号：P593[天文地球—地球化学]