气候变化领域集成服务门户(CCPortal): Astronomically forced late Paleocene-early Eocene climate variability in the Subei Basin, East China

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DOI	10.1016/j.gloplacha.2023.104350
	Astronomically forced late Paleocene-early Eocene climate variability in the Subei Basin, East China
	Liu, Juan; Ma, Xiaodong; Lu, Yongchao; Ogg, James G.; Yu, Wenrui; Qian, Zhiqi; Zhang, Ze; Tai, Hao; Liu, Zhanhong; Kemp, David B.; Huang, Chunju
发表日期	2024
ISSN	0921-8181
EISSN	1872-6364
起始页码	232
卷号	232
英文摘要	The latest Paleocene to early Eocene was an interval of globally warm climate. However, the driving mechanisms regulating climate across this interval remain unclear due to the paucity of well-dated and stratigraphically continuous records from terrestrial basins. In this study, we present a continuous -430-m lacustrine core record from the QY-1 borehole spanning the late Paleocene-Early Eocene in the Subei Basin, East China. This unique record can be used to better elucidate the response of terrestrial sedimentation to astronomically forced climate change. A 4.54 Myr long astronomical time scale spanning 57.1 to 52.56 Ma is constructed for the second member of the Funing Formation (Ef2) based on magnetostratigraphy and cyclostratigraphy. Low-latitude summer insolation via eccentricity modulation of precession controlled paleolake evolution in the basin during the studied interval. At the same time, we show that the climate system during this greenhouse state was sensitive enough to respond to the small changes in insolation associated with 200-kyr eccentricity cycles. Evidence from gamma ray data suggests that the climate in the Subei Basin changed from warm and humid to arid at -54.1 Ma.
英文关键词	Late Paleocene-early Eocene; Astronomical forcing; Cyclostratigraphy; Magnetostratigraphy; Subei Basin
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001154111900001
来源期刊	GLOBAL AND PLANETARY CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/294686
作者单位	China University of Geosciences; China University of Geosciences; Chengdu University of Technology; Purdue University System; Purdue University; China University of Geosciences
推荐引用方式 GB/T 7714	Liu, Juan,Ma, Xiaodong,Lu, Yongchao,et al. Astronomically forced late Paleocene-early Eocene climate variability in the Subei Basin, East China[J],2024,232.
APA	Liu, Juan.,Ma, Xiaodong.,Lu, Yongchao.,Ogg, James G..,Yu, Wenrui.,...&Huang, Chunju.(2024).Astronomically forced late Paleocene-early Eocene climate variability in the Subei Basin, East China.GLOBAL AND PLANETARY CHANGE,232.
MLA	Liu, Juan,et al."Astronomically forced late Paleocene-early Eocene climate variability in the Subei Basin, East China".GLOBAL AND PLANETARY CHANGE 232(2024).