| 微生物白云岩形成机理、识别标志及存在的问题 |
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| 引用本文： | 王金艺,金振奎.微生物白云岩形成机理、识别标志及存在的问题[J].沉积学报,2022,40(2):350-359. |
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| 作者姓名： | 王金艺 金振奎 |
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| 作者单位： | 中国石油大学（北京）地球科学学院，北京 102249 |
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| 基金项目： | 国家自然科学基金（41872018）~~； |
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| 摘 要： | 关于白云岩成因,前人提出了多种机理,但许多机理并没有过硬的证据,难以令人信服.近些年的研究表明,白云石借助微生物的作用在常温下可以沉淀出来,形成微生物白云岩.模拟实验证明了这种机理的正确性.微生物白云岩的发现表明,自然界中可以存在原生白云岩,因此具有重要科学意义.实验表明,多种微生物可形成白云岩.文章主要描述了其中4类...
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| 关 键 词： | 微生物白云岩 形成机理 硫酸盐还原菌 甲烷氧化菌 甲烷生成菌 喜氧喜盐菌 微生物白云岩识别标志 |
| 收稿时间： | 2020-10-19 |
Formation Mechanism,Identification Markers,and Questions Regarding Microbial Dolomite |
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| WANG JinYi,JIN ZhenKui.Formation Mechanism,Identification Markers,and Questions Regarding Microbial Dolomite[J].Acta Sedimentologica Sinica,2022,40(2):350-359. |
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| Authors: | WANG JinYi JIN ZhenKui |
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| Institution: | College of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China |
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| Abstract: | Many mechanisms have been suggested in previous studies as to the genesis of dolomite， but many of them are unconvincing and lack strong evidence. Studies in recent years have shown that dolomite is deposited at room temperature with the help of microorganisms to form microbial dolomite. Simulations have reinforced this view. The discovery of microbial dolomite indicates that primary dolomite does exist in nature， and is therefore of considerable scientific interest. Experiments have shown that dolomite is formed in the presence of many forms of microorganism. This paper describes the formation mechanism of four kinds of microbial dolomites that have been found in nature and for which abundant data is available. These are: anaerobic sulfate-reducing bacteria dolomite； methane-oxidizing bacteria dolomite； anaerobic methane-forming （methanogenic） bacteria dolomite； and aerobic （halophilic） bacteria dolomite. The basic principle and key data for each mechanism are described in detail， to enable readers to grasp the core content and information without the need to refer to the original text. In particular， the identification markers of all microbial dolomite types are summarized， and some problems posed by their formation mechanism are pointed out. |
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