Revised magnetostratigraphy of the Linxia Basin in the northeast Tibetan Plateau, constrained by micromammalian fossils

doi:10.1016/j.palaeo.2023.111620

IVPP-IR

	Revised magnetostratigraphy of the Linxia Basin in the northeast Tibetan Plateau, constrained by micromammalian fossils
	Zheng, Yan 1; Qiu, Zhanxiang1 ; Qiu, Zhuding 1; Li, Lu1 ; Wei, Xiaohao 2; Zhang, Riu 2; Yue, Leping 2; Deng, Tao1
	2023-08-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	623 期号:0 页码:16
摘要	The Linxia Basin along the northeastern margin of the Tibetan Plateau has drawn enormous attention due to its rich mammalian fossils and great potential for exploring regional tectonics, paleoenvironmental history, and bioevolution. However, the geochronology of the sedimentary sequences is in great dispute owing to uncertain lithostratigraphic correlation and poorly calibrated magnetostratigraphy. From 2017 to 2021, we carried out lithostratigraphic correlation of the strata from the southern part of the basin, which is rich in fossils, to the Maogou section in the central basin, and established a solid intra-basinal lithostratigraphic framework with accurate fossil locations. Then, high-resolution magnetostratigraphic investigations were performed on the Maogou section, which comprises, from oldest to youngest, the Jiaozigou, Shangzhuang, Dongxiang, Liushu/ Hujialiang, and "Liushu" formations. Magnetostratigraphic results show that the Maogou sedimentary sequence (from Jiaozigou to Liushu/Hujialiang formations) spans from chron C10r to chron C5r.2n, yielding an age of 29-11.6 Ma, with constraints from four mammalian assemblage levels. The revised magnetostratigraphy indicates that the Jiaozigou Formation corresponds to chrons C6Cn.3n-C10r (similar to 23-29 Ma), with Paraceratherium fauna from the lower Jiaozigou Formation being determined as similar to 29 Ma, and that the Hujialiang Formation, containing Platybelodon fauna, corresponds to chrons C5r.2n-C5Ar.2r (similar to 11.6-12.8 Ma). The revised magnetostratigraphy of the Maogou section has significantly refined the chronology of the Linxia Basin sedimentary sequences and its associated mammalian evolution, tectonism, and climate change in Central Asia.
关键词	Magnetostratigraphy Mammalian faunas Oligocene Miocene Linxia Basin
DOI	10.1016/j.palaeo.2023.111620
关键词[WOS]	MA
收录类别	SCI
语种	英语
资助项目	[QYZDY-SSW-DQC002] ; Key Project of Frontier Science Research of the Chinese Academy of Sciences[41974079] ; National Natural Science Foundation of China (NSFC)[41991323] ; National Natural Science Foundation of China (NSFC)[2022YFF0801502] ; National Key R and D project
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001057770500001
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/311034/22918
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zheng, Yan; Deng, Tao
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Northwest Univ, Inst Cenozo Geol & Environm, Dept Geol, State Key Lab Continental Dynam, Xian, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yan,Qiu, Zhanxiang,Qiu, Zhuding,et al. Revised magnetostratigraphy of the Linxia Basin in the northeast Tibetan Plateau, constrained by micromammalian fossils[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,623(0):16.
APA	Zheng, Yan.,Qiu, Zhanxiang.,Qiu, Zhuding.,Li, Lu.,Wei, Xiaohao.,...&Deng, Tao.(2023).Revised magnetostratigraphy of the Linxia Basin in the northeast Tibetan Plateau, constrained by micromammalian fossils.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,623(0),16.
MLA	Zheng, Yan,et al."Revised magnetostratigraphy of the Linxia Basin in the northeast Tibetan Plateau, constrained by micromammalian fossils".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 623.0(2023):16.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
1-s2.0-S003101822300（14025KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载