With stromatolite but no desiccation crack , the depositional environment of middle - late cambrian in the area was intertidal zone to subtidal zone with the shallow - water features 根据其中的叠层石和无明显泥裂构造，推测为潮间带局限潮下带沉积环境。
2.
The mesoproterozoic wumishan formation in jixian , tianjin represents a succession of 300 - m thick carbonate strata , in which stromatolite biostromes and clotted bioherms are best developed 天津蓟县中元古界雾迷山组为一套厚3000余米的碳酸盐岩地层，叠层石生物层和凝块石生物丘特别发育。
3.
The microfacies of carbonate rock of the wudaoliang group in hoh xil basin is divided for marl lithofacies , micrite facies , micrite ( spar ) scraps ash lithofacies , grain scraps micrite facies , dolimite rock lithofacies , and the stromatolite ash lithofacies 可可西里盆地五道梁群碳酸盐岩微相类型主要为泥灰岩相、泥晶灰岩相、泥(亮)晶粒屑灰岩相、粒屑泥晶灰岩相、白云岩相、叠层石灰岩相、核形石灰岩相等7种微相。
4.
The lacustrine carbonate rocks in the wudaoliang group consist of boundstone ( stromatolite ) , micritic limestone , grainstone and micritic dolostone which were laid down in the shallow - water to bathyal , high - salinity and enclosed to semi - enclosed lake systems 五道梁群湖相碳酸盐岩分为生物粘结灰岩（叠层石） 、泥晶灰岩、颗粒灰岩与泥晶白云岩四大类，反映出沉积环境为一个具有浅水半深水、高盐度、半封闭封闭特点的综合湖泊系统。
5.
However , the authors discovered recently that the top and bottom surfaces of the loushanguan formation are palaeokarst unconformity interfaces , and there are a lot of interbeds of granular ( oolite , pisolite and oncolite ) dolomite and algae - mat dolomite , especially sedimentary structures such as the bird ? s eye , stromatolite , cross bedding and tepee structures 但笔者新近研究发现，其顶、底均为古岩溶不整合面，并有大量颗粒(鲕、豆、核形石)白云岩和藻纹层白云岩夹层，还有许多鸟眼构造、叠层石构造、交错层理、帐蓬构造存在。
