摘要
一般认为晚二叠世—早三叠世的地层均为连续沉积。本次调查过程中,通过地层剖面、露头刻画等资料的研究对比分析,识别出局部区域嘉陵江组三段与二段(T1j3/T1j2)之间的沉积间断特征。在恩施地区,总体上表现为开阔台地—局限台地—蒸发台地的变化特征,对于恢复嘉陵江组沉积时期的古地理具有重要的意义。
Former profiling data considers that it is successive sedimentation during Late Permian epoch to Early Triassic epoch in Enshi of western Hubei. Nevertheless, under this research,it also has depositional break in local area hetween the middle and upper Jialingjiang Formation （ T1j^3/T1^j^2 ） through the method of comparative analysis of stratigraphic sec- tion. In this area, it generally shows variation characters from open-platform to local-platform and to evaporate-platform, having great influences on recovering paleogeograghy in Early Triassic period.
出处
《资源环境与工程》
2016年第1期6-10,共5页
Resources Environment & Engineering
基金
中国地质调查局地质调查项目(12120114066101)
关键词
沉积间断
岩相古地理
嘉陵江组三段与二段
depositional break
lithofacies paleogeography
the middle and the upper Jialingjiang Formation
