Lacustrine tempestite litho- and biofacies in the Lower Cretaceous Yixian Formation, Beipiao, western Liaoning, northeast China

doi:10.1016/j.cretres.2006.10.002

	Lacustrine tempestite litho- and biofacies in the Lower Cretaceous Yixian Formation, Beipiao, western Liaoning, northeast China
	Li, Yue; Sha, Jingeng; Wang, Qifei; Chen, Siwei
刊名	CRETACEOUS RESEARCH
	2007-04-01
卷号	28 期号:2 页码:194-198
关键词	bivalve tempestite lacustrine Early Cretaceous Yixian Formation northeast China
ISSN号	0195-6671
DOI	10.1016/j.cretres.2006.10.002
文献子类	Article
英文摘要	The Lower Cretaceous Jianshangou Member, the basal unit of the Yixian Formation at Sihetun, Beipiao, western Liaoning, northeast China, comprises volcanic tuffs and is well-known for its diverse fossils, the Jehol Biota. Quiet lacustrine environments prevailed during this time interval. Within the lacustrine facies there is a hummocky cross-stratified, gravelly silty sandstone 0.2-0.6 m thick containing a high concentration of bivalve shells. It is characterized by the dominance of two species: Sphaerium anderssoni (Grabau) and Arguniella cf. ventricosa (Kolesnikov). The bivalves form a dense concentration of broken and sorted remains. The lithological, biotic and taphonomic features of the deposit thus differ from the units below and above it in which the sediment is finer-grained and well bedded, the fossil taxa are more diverse, autochthonous and better preserved. We suggest that the coarser sediments and the bivalve concentration were formed by strong currents that winnowed away finer material. The hummocky cross-stratification suggests a tempestite origin for this bed. (C) 2006 Elsevier Ltd. All rights reserved.
WOS关键词	HUMMOCKY CROSS-STRATIFICATION ; FOSSIL CONCENTRATIONS ; NONMARINE ; SEDIMENTS ; BASIN ; LAKE
WOS研究方向	Geology ; Paleontology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000246762700006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/67426]
专题	中国科学院地质与地球物理研究所
通讯作者	Li, Yue
作者单位	Chinese Acad Sci, Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Li, Yue,Sha, Jingeng,Wang, Qifei,et al. Lacustrine tempestite litho- and biofacies in the Lower Cretaceous Yixian Formation, Beipiao, western Liaoning, northeast China[J]. CRETACEOUS RESEARCH,2007,28(2):194-198.
APA	Li, Yue,Sha, Jingeng,Wang, Qifei,&Chen, Siwei.(2007).Lacustrine tempestite litho- and biofacies in the Lower Cretaceous Yixian Formation, Beipiao, western Liaoning, northeast China.CRETACEOUS RESEARCH,28(2),194-198.
MLA	Li, Yue,et al."Lacustrine tempestite litho- and biofacies in the Lower Cretaceous Yixian Formation, Beipiao, western Liaoning, northeast China".CRETACEOUS RESEARCH 28.2(2007):194-198.