New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota

doi:10.1016/j.palaeo.2021.110657

IVPP-IR > 中科院古脊椎所（2000年以后）

	New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota
	Yu, Zhiqiang 1,2,3; Wang, Min1,2 ; Li, Youjuan 4; Deng, Chenglong 3; He, Huaiyu 3
	2021-12-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	583 页码:11
通讯作者	He, Huaiyu(huaiyuhe@mail.iggcas.ac.cn)
摘要	The Lower Cretaceous Jiufotang Formation in western Liaoning Province, northeastern China contains important vertebrate fossils of the late Jehol Biota, e.g., the four-winged non-avian dinosaur Microraptor. This formation documents the late phase of the Jehol Biota, producing the most abundant fossil records of the Mesozoic birds. However, the precise age constraints on the fossiliferous layers of this formation remain scarce and chronological consensus of this formation has not been reached, limiting our understanding of the evolutionary history of the Jehol Biota and its time-spatial distribution. Here we present secondary ion mass spectrometry (SIMS) U-Pb zircon analysis results of four tuff samples interbedded within the Jehol fossil-bearing layers from the Jiufotang Formation outcrops at the Sanmendian and Xiaotaizi sections in the Jianchang Basin, western Liaoning. Stratigraphic correlation between two outcrop sections is achieved by combining lithostratigraphic, biostratigraphic, and SIMS U-Pb zircon dating results. One tuff bed SMD17-1 closed to the boundary of the Yixian/Jiufotang formations from the Sanmendian section yielded an age of 122.0 +/- 0.9 Ma, and three tuff beds XTZ17-1, XTZ17-2, and XTZ17-3 from the Xiaotaizi section dated to 118.9 +/- 0.8 Ma, 118.8 +/- 0.6 Ma, and 118.6 +/- 1.1 Ma, respectively. These ages suggest that the Jiufotang Formation in Jianchang Basin was deposited at ca. 122.0-118.9 Ma, the latest Barremian-Aptian stage of the Lower Cretaceous and provides stringent constraints on the Mesozoic vertebrates discovered in the Jianchang Basin. Furthermore, the late Jehol Biota documents in the Jiufotang Formation has been placed between similar to 123 and similar to 119 Ma based on our new chronology and previous radiometric dates. It is critical to evaluate the evolutionary history of various important Mesozoic taxa discovered from the Jehol Biota and explore the patterns and modes of major vertebrate lineages documented in this interval.
关键词	Early Cretaceous Primitive mammaliaforms Early birds Geochronology
DOI	10.1016/j.palaeo.2021.110657
关键词[WOS]	CANYON SANIDINE STANDARD ; K-40 DECAY CONSTANTS ; U-PB ; AR-40/AR-39 GEOCHRONOLOGY ; ENANTIORNITHINE BIRD ; FEATHERED DINOSAURS ; JOINT DETERMINATION ; IMPROVED ACCURACY ; AGE ; STRATIGRAPHY
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences[XDB18030505] ; National Natural Science Foundation of China[41688103]
项目资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000704182100004
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/18898
专题	中科院古脊椎所（2000年以后）
通讯作者	He, Huaiyu
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origin, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.China Earthquake Adm, State Key Lab Earthquake Dynam, Inst Geol, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Yu, Zhiqiang,Wang, Min,Li, Youjuan,et al. New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,583:11.
APA	Yu, Zhiqiang,Wang, Min,Li, Youjuan,Deng, Chenglong,&He, Huaiyu.(2021).New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,583,11.
MLA	Yu, Zhiqiang,et al."New geochronological constraints for the Lower Cretaceous Jiufotang Formation in Jianchang Basin, NE China, and their implications for the late Jehol Biota".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 583(2021):11.