- 责任者：Wang Ning (Research Institute of Shaanxi Yanchang Petroleum Group ; Xi’an 710075 ; China)
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2011
- 卷期：30(4)
- 关键词：白云石 ; dolomite ; 碳酸盐岩储集层 ; carbonate reservoirs
- 页码：p.683-690
- 图表：3 illus., 101 refs.
- 分类号：1003
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
“Dolomite problem” has long been one of the focuses and difficulties in the study of sedimentary geology. This paper reviews the progress of research on microbial dolomite. Three kinetic barriers of dolomite precipitation under earth surface conditions were listed, which are strong hydration energy of magnesium ion, the existence of sulfate ion and the low concentration and low activity of carbonate ion. The background for putting forward the microbial dolomite model and the growth process and morphological characteristics of microbial dolomite were briefly described. The mediation of microbe during the formation process of dolomite was explained in detail. It is pointed out that the existence of microbes (e.g., sulfate-reducing bacteria and ancient methane bacteria) could change the ion balance of solution and help dolomite to overcome the kinetic barriers during the precipitation process. The application of oxygen isotope of microbial dolomite to the reconstruction of palaeo-temperature and ancient climate change was discussed.