• 责任者：Mei Minxiang (School of Earth Sciences and Resources ; China University of Geosciences ; Beijing 100083 ; China) ; Guo Rongtao
• 刊名：Acta Petrologica Sinica
• 出版年：2011
• 卷期：27(8)
• 关键词：生物丘 ; bioherms ; 北京 ; Beijing
• 页码：p.2473-2486
• 图表：10 illus., 81 refs.
• 分类号：0803
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

Cambrian Gushan Formation, belonging to the upper part of Series 3, is made up a general upward shallowing succession of sedimentary facies from shelf marls to grain-bank oolitic grainstones. Within one bed of the grain-bank oolitic grainstones in the upper part of Gushan Formation, occur many dome-shaped carbonate structures with the distribution like a string of beads that can be described as the stromatolitic bioherm. Since stromatolites are typical buildups of microbial mats, these stromatolitic bioherms with special macro-and microscopic fabrics can further be grouped into the microbial reef, and become the typical example for the further understanding of both the sedimentation pattern in the shallow skeleton-poor sea before the biological radiation of the Middle Ordovician and the microbial reef-building features in this special geological time.