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	Astronomically forced dynamics of Late Devonian (Famennian) sea level and biotic recovery in western Junggar, Northwest China
通讯作者	Ma, Kunyuan([email protected]) ; Gong, Yiming([email protected])
	Ma, Kunyuan1,2,3; Hinnov, Linda3; Wang, Zhihong4; Wang, Kai2; Zong, Ruiwen2; Zhang, Xinsong5; Song, Junjun6; Bai, Yang1; Gong, Yiming2
	2025-02-01
发表期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
卷号	245页码:18
摘要	The Hongguleleng Formation in western Junggar, northwest China preserves a rich variety of fossils and was previously regarded as a "refugium" during the Late Devonian biotic crisis. Uncertainty in the age of the Hongguleleng Formation has persisted for a considerable time. In this study, cyclostratigraphic analysis was carried out on the Upper Devonian Bulongguoer and Wulankeshun sections from western Junggar, northwest China. Time series analysis and modeling of iron (Fe) concentration proxy data reveal variations with frequencies comparable to those of the Earth's long and short orbital eccentricity, obliquity, and precession index in both successions. Interpreted 405-kyr long orbital eccentricity cycles were used to establish floating astronomical time scales (FATs) for the two successions. From these FATs the depositional duration of the Hongguleleng Formation is calculated as 11.5 +/- 0.58 Myr. The Devonian-Carboniferous boundary age of 359.3 +/- 0.3 Ma was chosen as a time "anchor", resulting in an astronomically determined age of 370.2 +/- 0.66 Ma for the base of the Hongguleleng Formation. Combined with conodont biostratigraphy, this age indicates that the Hongguleleng Formation in western Junggar does not reach down to the Frasnian-Famennian boundary. Sedimentary noise modeling of the reconstructed Fe concentration time series provides an interpretation of sea-level variations in the PaleoAsian Ocean controlled by astronomical forcing from very long orbital eccentricity cycles (g4-g3) throughout the Late Devonian period. Intensified monsoonal climates during these orbital eccentricity cycle maxima led to elevated terrigenous input and strengthened upwelling, which enhanced primary productivity in the western Junggar. We propose an "astronomical climate change" model as a driving mechanism that led to biotic recovery in the Famennian Hongguleleng Formation.
关键词	Cyclostratigraphy Astronomical time scale Devonian Sea-level change Hongguleleng Formation
DOI	10.1016/j.gloplacha.2024.104677
收录类别	SCI
语种	英语
关键词[WOS]	NW CHINA ; CYCLOSTRATIGRAPHIC CALIBRATION ; ORBITAL CYCLOSTRATIGRAPHY ; HONGGULELENG FORMATION ; KELLWASSER ANOXIA ; MASS EXTINCTION ; MARINE ANOXIA ; SOUTH CHINA ; CLIMATE ; XINJIANG
资助项目	National Natural Science Foundation of China[42202030] ; National Natural Science Foundation of China[42272014] ; National Natural Science Foundation of China[42072041] ; National Natural Science Foundation of China[41872034] ; National Natural Science Foundation of China[41802018] ; National Natural Science Foundation of China[41290260] ; Fundamental Research Program of Shanxi Province[202103021223037] ; Fundamental Research Program of Shanxi Province[202303021212041] ; State Key Laboratory of Ore Deposit Geochemistry open found[202208] ; Heising-Simons Foundation[2021-2796]
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:001389773700001
项目资助者	National Natural Science Foundation of China ; Fundamental Research Program of Shanxi Province ; State Key Laboratory of Ore Deposit Geochemistry open found ; Heising-Simons Foundation
出版者	ELSEVIER
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44758
专题	中国科学院南京地质古生物研究所
通讯作者	Ma, Kunyuan; Gong, Yiming
作者单位	1.Taiyuan Univ Technol, Coll Geol & Surveying Engn, Taiyuan 030024, Peoples R China 2.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430205, Peoples R China 3.George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA 4.China Geol Survey, Wuhan Ctr, Geosci Innovat Ctr Cent South China, Wuhan 430074, Peoples R China 5.Fuzhou Univ, Zijin Min Coll, Fuzhou 350108, Peoples R China 6.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Ma, Kunyuan,Hinnov, Linda,Wang, Zhihong,et al. Astronomically forced dynamics of Late Devonian (Famennian) sea level and biotic recovery in western Junggar, Northwest China[J]. GLOBAL AND PLANETARY CHANGE,2025,245:18.
APA	Ma, Kunyuan.,Hinnov, Linda.,Wang, Zhihong.,Wang, Kai.,Zong, Ruiwen.,...&Gong, Yiming.(2025).Astronomically forced dynamics of Late Devonian (Famennian) sea level and biotic recovery in western Junggar, Northwest China.GLOBAL AND PLANETARY CHANGE,245,18.
MLA	Ma, Kunyuan,et al."Astronomically forced dynamics of Late Devonian (Famennian) sea level and biotic recovery in western Junggar, Northwest China".GLOBAL AND PLANETARY CHANGE 245(2025):18.

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