白云石重结晶作用及其地质意义
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P578.6+1

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国家自然科学基金项目(42072128,41972102);中国石油天然气股份有限公司科学研究与技术开发项目(2021DJ0503);天然气成藏物质基础四川省青年科技创新研究团队(2CXTD0064)


Recrystallization of dolomite and its geological significance
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    摘要:

    重结晶作用是白云石形成多期次动态系统中一种常见的成岩后生作用。白云石的成因问题,即"白云岩问题"一直困扰着地质学者,其中一个重要原因是白云岩中白云石的重结晶作用导致白云石形成的原始信息被掩盖,主要包括其结构和地球化学特征的变化。本文在调研国内外有关白云石重结晶作用文献基础上,系统梳理了地质历史时期古老地层中白云石和现代沉积白云石的重结晶作用,以及重结晶模拟实验中白云石岩石学及地球化学变化特征,阐述白云石重结晶的主要条件、影响因素及成岩过程中白云石重结晶作用发生的多期次性及主要变化特征,总结了白云石重结晶作用的研究意义,旨在为"白云岩问题"及成岩作用方面的研究提供一定的借鉴和启示。

    Abstract:

    Recrystallization is a ubiquitous diagenetic process during dolomite formation, which is always characterized as a multi-stage dynamic system. The origin of dolomite, which is referred to as the "dolomite problem", has puzzled geologists. One of the most important reasons is that dolomite in dolomites recrystallization results in information, such as the petrological and geochemical characteristics, being covered during the process of dolomite formation. The recrystallization of dolomite in ancient strata of the geologic historical period and in modern sediment, the changes in petrological and geochemical characteristics observed in modern simulation experiments on dolomite recrystallization were systematically summarized through the investigation of previous national and international studies on recrystallization. Subsequently, the main conditions and factors influencing dolomite recrystallization are expounded, and the changes in the diagenetic environment during the diagenetic process, the stages of dolomite recrystallization, and the main variation character are analyzed. In addition, the significance of dolomite recrystallization is summarized. The purpose of this review is to provide an overview of and guidelines for research on dolomite recrystallization and benefit the study of the "dolomite problem" and carbonate diagenesis.

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白璇,钟怡江,黄可可,等, 2022. 白云石重结晶作用及其地质意义[J]. 岩石矿物学杂志, 41(4):804~817.
BAI Xuan, ZHONG Yi-jiang, HUANG Ke-ke, et al, 2022. Recrystallization of dolomite and its geological significance[J]. Acta Petrologica et Mineralogica, 41(4): 804~817.

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  • 收稿日期:2021-11-18
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  • 在线发布日期: 2022-07-18
  • 出版日期: 2022-07-25
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