Evolution Characteristics of Microbial Reef of Lower Cambrian in Sugaiteblak Area, Tarim Basin
详细信息
- 责任者：Song Jinmin (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Luo Ping
- 刊名：Xinjiang Petroleum Geology
- 出版年：2012
- 卷期：33(6)
- 关键词：礁 ; reefs ; 造礁生物 ; reef builders ; 塔里木盆地 ; Tarim Basin
- 页码：p.668-671
- 图表：2 illus., 5 refs.
- 分类号：1102,1003
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
The massive microbial reef composed of Cyanobacteria of upper Xiaoerblak Formation of the Lower Cambrian found in Sugaiteblak area in Tarim Basin is distributed in NNE-SSW, with thickness of 30～70 m and two-stage progradation features.The first stage is characterized by autochthonous growing Epiphyton,the second one by thrombolites and stromatolites.The interior structures of the microbial reef show that the evolutions of grain bank→autochthonous growing Epiphyton reef→thrombolites→stromatolites from the bottom to the top indicate that the growth of the microbial reef is a gradually increasing process of hydrodynamic intensity upward.