• 责任者：Qi Yongan (Henan Key Laboratory of Biogenic Traces and Sedimentary Minerals ; School of Resources and Environment ; Henan Polytechnic University ; Jiaozuo 454000 ; China) ; Sun Changyan
• 刊名：Journal of Stratigraphy
• 出版年：2013
• 卷期：37(1)
• 关键词：张夏阶 ; Zhangxian Stage ; 沉积旋回 ; sedimentary cycles ; 河南 ; Henan Province
• 页码：p.101-111
• 图表：illus., 17 refs.
• 分类号：1200
• issnNo：ISSN0253-4959
• isbnNo：CN32-1187/P

The Third Series Changhia Formation of Cambrian in the Dengfeng Area, Henan, deposited the 167 m thick carbonates, display the continuous and abundant depositional and palaeoichnological records which can be better used for the study of meter-scale cycles. Two main types of meter-scale cycles, respectively dominated by microbiolites and by metazoan bioturbated limestones, can be recognized from Changhia Formation. Based on the evolution of meter-scale cycles and their depositional and palaeoichnological features, The cycles dominated by microbiolites give ways to the cycles dominated by metazoan bioturbated limestones from bottom to top in Changhia Formation; the depositional system evolves from the carbonate platform without oolitic shoals into the platform developed oolitic shoals; the sedimentary environments develop from low energy deep subtidal zone to open platform zone, and gradually become shallower into oolitic shoals and eventually end up with restricted platform; the rock types change from the microbiolites of stromatolite, trombolite into bioclastic limestones, bioturbated limestone and oolitic limestone.