古地理学报2012，Vol.14Issue(3)：341-354,14.
塔里木盆地苏盖特布拉克地区下寒武统肖尔布拉克组碳酸盐岩微生物建造特征
Carbonate rock microbial construction of the Lower Cambrian Xiaoerblak Formation in Sugaitblak area, Tarim Basin
摘要
Abstract
There are three kinds of carbonate rock microbial (cyanobacteria) constructions in the Lower Cambrian Xiaoerblak Formation in Sugaitblak area, Tarim Basin, including microbial mounds and laminated constructions at the lower part, microbial reefs in the middle and upper part and stromatolite constructions at the top. The microbial mounds or laminated constructions are characterized by the stromatactoid cavities and laminated texture formed in the subtidal high energy zone. The constructions with a wide and stable occurrence were related with sticky microbial mats. The microbial dendritic or shrub structure and its cohesive action are developed in reefs, formed by microbial growth and sticky microbial mats. They are widely spread in the study area. There are two stages of microbial reefs. At the first stage macroscopic massive buildups are developed during the regression setting, while at the second stage, two stages of point reefs are developed during the transgression setting. The stromatolite constructions are formed during a more broad transgression setting, overlapped on the point microbial reefs, when the hydrodynamic force was stronger. This type of microbial buildups is formed by microbial bonding and characterized by stromatolite and oncolite. They are only developed at the top of Su II, Su III and Su IV sections.关键词
塔里木盆地/苏盖特布拉克地区/下寒武统/肖尔布拉克组/微生物礁/叠层石Key words
Tarim Basin/ Sugaitblak area/ Lower Cambrian/ Xiaoerblak Formation/ microbial reef/ stromatolite分类
天文与地球科学引用本文复制引用
宋金民,罗平,杨式升,翟秀芬,周刚,陆朋朋..塔里木盆地苏盖特布拉克地区下寒武统肖尔布拉克组碳酸盐岩微生物建造特征[J].古地理学报,2012,14(3):341-354,14.基金项目
中国石油勘探开发研究院中青年创新基金项目(编号:2010-B-16-08)资助 （编号:2010-B-16-08）
