叠层石成因和形成条件的研究综述

综合介绍了最近20多年有关叠层石成因与形成条件的研究成果及其进展，包括与成因有关的各种叠层石类型，微生物席组分及内部结构特征，叠层石的形成与光合作用、硫还原作用等生物作用的密切关系，以及基本的形成过程和方式，同时与现代叠层石对比，简要总结了叠层石生长所需要的特殊沉积、水体和生物环境条件。

Current Study on Genesis and Formation Conditions of Stromatolites

Stromatolites are organic-sedimentary structures, built mainly by microbes through trapping, binding of coarse-grained sediment and in-situ precipitation, and may potentially preserve direct evidence evolution of life on the Earth. During the 20 years hitherto, many new viewpoints on genesis and formation models of stramatolites have been proposed. In this paper, the recent progress in study on stromatolites genesis is generalized, including stromatolites types, constituents and internal structures of microbial mats, relationship between formation of stromatolites with microbial photosynthesis, sulfate reduction etc., as well as their basic formation processes and conditions. Based on the comparison with modern stromatolites analogues, the necessary and particular requirements with respect to deposition, water bodies and biogenic conditions are also viewed briefly.