Preservational Modes and Tempo-Spatial Distribution of Ediacaran Fossils in China
详细信息
- 责任者：Wang Wei (State Key Laboratory of Palaeobiology and Stratigraphy ; Nanjing Institute of Geology and Palaeontology ; Chinese Academy of Sciences ; Nanjing 210008 ; China) ; Cai Yaoping
- 刊名：Acta Palaeontologica Sinica
- 出版年：2013
- 卷期：52(1)
- 关键词：化石 ; fossils ; 埋葬学 ; taphonomy ; 中国 ; China
- 页码：p.68-79
- 图表：illus., 110 refs.
- 分类号：1100
- issnNo：ISSN0001-6616
- isbnNo：CN32-1188/Q
摘要
The preservation of Ediacaran fossils in China are grouped into five preservational modes : phosphatization , kerogenization , pyritization , silicification and clay replication.Five representative fossil preservational modes identified in Ediacaran fossil Lagersttten in China and their tempo-spacial distribution patterns and taphonomic mechanisms are reviewed in this study.Our study indicates that kerogenization is the primary preservational style amongst the five taphonomic modes ; phosphatization and silicification are widespread ; and pyritization and clay replication are relatively rare in China.The kerogenization and pyritization are usually present in sandstones and mudstones ; while the phosphatization and silicification often occur in phosphorite , chert , and phosphatic and siliceous nodules.Several fossil preservational modes usually occur in the same fossil Lagersttte , resulting in multiple taphonomic pathways.Further integrated studies are required to test how the multi-preservational modes take place during the Ediacaran Period.