• 责任者：Chen Xiuyan (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Jiang Zaixing
• 刊名：Fault-Block Oil and Gas Fields
• 出版年：2012
• 卷期：19(4)
• 关键词：沉积环境 ; sedimentary environment ; 遗迹化石 ; ichnofossils ; 东营凹陷 ; Dongying Sag
• 页码：p.462-466
• 图表：2 illus., 12 refs.
• 分类号：0803
• issnNo：ISSN1005-8907
• isbnNo：CN41-1219/TE

According to cure observation and sedimentation analysis, Es₃ reservoir of Dongxin area is enriched with trace fossils, which contains dwelling burrow, escape structure, bioturbation structure, biological entity fossil and impression. The ichnocoenosis can be recognized as Domiehnia, Fodiniehnia and Paseiehnia. Based on the distribution characteristics, ichnoenenuses can be subdivided into Coehlichnus anguineus, Planolites montanus and Skolithos-Planolites.  The results show that hydrodynamic conditions were enhanced gradually and the water’s depth was getting shallow upward in the depositional period of Es₃ member of Dongxin area.