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gui zhou gui yang di qu xia san die tong ning suo duan de yi ji hua shi te zheng
Author(s): Wang Shangyan Reional Geological Survey and Research Institute, Guizhou Bureau of Geology and Mineral Resources
Pages: 58-
62
Year: 1997
Issue:
2
Journal: Sedimentary Geology and Tethyan Geology
Keyword: 凝缩段; 遗迹化石; 下三叠统; 贵阳地区;
Abstract: 贵阳地区下三叠统是一个完整的碳酸盐岩层序(相当于三级旋回层序)。该层序中的凝缩段由深色薄层(单层厚0.5cm~1cm)的泥晶灰岩和泥质条带灰岩组成。凝缩段中产丰富的遗迹化石。该遗迹群落为:Cochlichnus,Cosmorhaphe,Chondrites,Gordia,Glockeria,Huaxich-nus,Oldhamia,Phycosiphon,Protopaleodictyon,Pinnatpedus,Mammillichnus,Neoneriles 和生物扰动构造。遗迹化石组合与 Nereites 遗迹相相似。此外,文本还讨论了此遗迹群落的形成原因。
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