河南理工大学学报（自然科学版）2017，Vol.36Issue(3)：40-46,7.DOI:10.16186/j.cnki.1673-9787.2017.03.007
东濮凹陷文留地区沙三中(Es3中)遗迹化石与沉积环境
Trace fossils and sedimentary environments in the middle part of third member Shahejie Formation in Wenliu area, Dongpu Sag
摘要
Abstract
In order to analyze sedimentary environment and change law of water deepth in the middle part of third member of the Paleogene Shahejie Formation in Wenliu area,Dongpu Sag,the research method of ichnology and sedimentology is used,through the observation of drilling cores and identification of trace fossils,11 ichnogenus and 16 ichnospecies are discovered in the study member.These ichnofossils can be divided into 4 ecological types:Palaeophycus-Planolites ichnoassemblage,appeared in the Shallow lake and fan delta front environment;Planolite-Mermoides ichnoassemblage is formed in the Shallow lake and semi deep lake environment;Helminthopsis-paleodictyon ichnoassemblage occurred in the front fan delta environment;HelminthopsisTrichichnus ichnoassemblage generated in the turbidity fan environment.The research results not only provide the evidences on palaeoenvironments and palaeobathymetric analysis but also offer new factor formation to predict oil and gas deposits in Dongpu Sag.关键词
东濮凹陷/沙河街组/遗迹化石/遗迹组合/沉积环境Key words
Dongpu Sag/Shahejie Formation/trace fossil/Ichnoassemblage/sedimentary enviroment分类
天文与地球科学引用本文复制引用
胡斌,陈传浩,王长征,常龙..东濮凹陷文留地区沙三中(Es3中)遗迹化石与沉积环境[J].河南理工大学学报（自然科学版）,2017,36(3):40-46,7.基金项目
国家自然科学基金资助项目(41272117) （41272117）
河南理工大学博士基金资助项目(B2016-71) （B2016-71）
