摘要
在分析大量国内外文献资料的基础上,将现有的20余种白云石的成因划分为原生白云石和次生白云石化两类模式,根据镁钙比等指标又将次生白云石化模式进一步细分为高镁钙比、低镁钙比、正常镁钙比白云石化及其它白云石化4种模式类型,并对其中几种经典的白云石化模式的真实性和适用性进行了探讨。认为蒸发泵白云石化模式和回流渗透白云石化模式受到了普遍认可;混合水白云石化模式遭受到持续挑战;海水白云石化模式和埋藏白云石化模式得到了广泛关注;热液白云石化模式和微生物白云石化模式逐渐成为新的主流模式。
On the basis of reviewing a number of references about dolomitizatiou models,the known dolomitization models can be divided into primary dolomitization models and secondary dolomitization models in genesis. The secondary dolomitization models can be further classified into high Mg/Ca ratio dolomitization models, low Mg/Ca ratio dolomitization models,normal Mg/Ca ratio dolomitization models and other dolomitization models in different Mg/Ca ratios. To improve precent models and create new models,some classical models are discussed on their authenticity and applicability. The Sabkha dolomitization model and the seepage reflux dolomitization model have widely been recognized. The mixing zone dolomitization model or the Dorag model encounters a sustaining challenge for doubt. An attention is great interested to the seawater dolomitization model and the burial dolomitization model. The hydrothermal dolomitization model and the microbial dolomitization model have gradually become the new mainstream model.
出处
《海相油气地质》
北大核心
2013年第2期31-40,共10页
Marine Origin Petroleum Geology
基金
国家科技攻关项目"四川
塔里木等盆地及邻区海相碳酸盐岩大油气田形成条件
关键技术及目标评价"(编号:2008ZX0504-003)资助
关键词
白云石
白云石化作用
成因模式
研究进展
评述
Dolomite
Dolomitization
Genesis model
Research advance
Applicability
