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近年来,有关微生物白云岩沉淀作用机制的研究拓宽了沉积学中“白云岩问题”研究的视角。硫酸盐还原反应、产甲烷作用、有机分子水解等一系列可促进沉淀白云石的微生物代谢机制的发现,延伸了微生物白云石(岩)形成模式;有关可溶解硫化物催化白云石沉淀的研究,不但强调了硫酸盐还原反应机制,也为重新认识硫酸盐还原反应促进白云石沉淀机理提供了新线索。在现代环境中,微生物席内的原生白云石沉淀的发现,将微生物过程引入地表环境原生白云石沉淀作用和机理的研究,可能为寻找地层记录中的微生物白云石提供了更多有益的工作手段和思考途径。然而更加复杂的白云岩地层记录说明,运用微生物白云石去解释复杂的地质记录还存在着较多的局限性。
In recent years, the research on the sedimentation mechanism of microbial dolomite has broadened the study of “dolomite problem” in sedimentology. Sulfate reduction, methanogenesis, organic molecular hydrolysis and a series of microbial metabolism mechanisms that can promote the precipitation of dolomite, extending the microbial dolomite (rock) formation model; the study of soluble sulfide-catalyzed dolomite precipitation, It not only emphasizes the mechanism of sulfate reduction reaction, but also provides new clues for re-understanding the mechanism of sulfate reduction promoting dolomite precipitation. In the modern environment, the discovery of primary dolomite precipitation in microbial mats and the study on the role and mechanism of the primary dolomite precipitation by introducing microbial processes into the surface environment may provide more useful means of work for the search for microbial dolomites in stratigraphic records And ways of thinking. However, the more complicated dolomite stratigraphic records show that there are still many limitations in using microbial dolomites to interpret complex geological records.