张学丰;胡文瑄;张军涛;

• 1:南京大学地球科学系
• 2:南京大学地球科学系
• 3:南京大学地球科学系 南京210093
• 4:南京210093

摘要(Abstract)：

在综述白云岩成因研究历程和最新成果的基础上,总结阐述了与之相关的4个方面的问题:①尽管白云岩原生沉淀与次生交代成因分歧依旧,但越来越多的证据表明白云岩的形成以次生交代为主;②白云石难以直接沉淀的原因是受结晶动力学条件制约,而非热力学因素;③控制次生交代强度和规模的关键条件是富Mg流体的来源及其量的大小;④微生物活动很可能有助于白云岩的形成。关于白云岩化模式,其核心是构建富Mg流体与先成钙质碳酸盐岩相互作用的条件与场所,其中浓缩正常海水模式、萨布哈模式、混合水模式和埋藏白云岩化模式等具有一定的普遍性。理清白云岩成因问题,对于认识以白云岩及其相关的碳酸盐岩为储层的油气勘探工作尤为重要。

关键词(KeyWords)： 白云岩;次生交代;Mg的来源;动力学条件;微生物作用;形成模式

Abstract:

Keywords:

基金项目(Foundation): 国家科技部“973”项目“中国海相碳酸盐岩层系多种储层形成机理与分布模式”(2005CB422103)

作者(Author): 张学丰;胡文瑄;张军涛;

Email:

参考文献(References)：

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