干旱区生态环境知识资源中心(Arid): Recognition of Milankovitch cycles in XRF core-scanning records of the Late Cretaceous Nenjiang Formation from the Songliao Basin (northeastern China) and their paleoclimate implications

Arid

DOI	10.1016/j.jseaes.2019.104183
	Recognition of Milankovitch cycles in XRF core-scanning records of the Late Cretaceous Nenjiang Formation from the Songliao Basin (northeastern China) and their paleoclimate implications
	Yang, Hanfei; Huang, Yongjian; Ma, Chao; Zhang, Zhifeng; Wang, Chengshan
通讯作者	Huang, YJ
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
ISSN	1367-9120
EISSN	1878-5786
出版年	2020
卷号	194
英文摘要	Cretaceous terrestrial sedimentary records are crucial for our understanding of geological systems' responses to past climate change under greenhouse condition. Numerous publications have documented that Milankovitch cycles were a dominant climate driver over multi-millennial timescales. However, most of these orbital signals were derived from marine records obtained during the Cenozoic geological period, whereas knowledge of Milankovitch cycles preserved in lacustrine sediments prior to the Cenozoic is limited due to the lack of a precise chronological framework, poor preservation rate of terrestrial sediments, limited records, and fewer experts in this research area. This paper reports high-resolution X-ray fluorescence (XRF) elemental records of K, Ti, Rb, Sr, Zr, Zr/Rb, Rb/Sr, and K/Ti from Member 1 (k(2)n(1)) and Member 2 (k(2)n(2)) of the Nenjiang Formation, which were obtained from a near-continuous SK-2 East (SK-2e) borehole drilled in the Songliao Basin (SB) of northeastern (NE) China. Variations of the elemental records reveal a humid-arid-humid-semiarid climatic evolution throughout the deposition of k(2)n(1) and a humid-arid-humid-arid climatic variation throughout the deposition of k(2)n(2). In this context, K(2)n(1) experienced a relatively longer humid period and more pronounced climatic fluctuation than K(2)n(2). A method of average spectral misfit (ASM) was adopted to successfully identify two optimal sedimentation rates of 6.577 and 8.369 cm/ka for K(2)n(1) and K(2)n(2), respectively. Based on these two sedimentation rates, nearly all significant Milankovitch cycles preserved in the Rb/Sr record were recognized. It is suggested that westerly wind was the main climatic driving factor of climate evolution in the SB under the forcing of Milankovitch cycles. The collectively regulation of obliquity and precession increased the seasonal contrasts during humid periods in the Nenjiang Formation and thereby amplified the paleomonsoon effect, thus bringing more moisture towards the SB and lead to enhanced rainfall.
英文关键词	Milankovitch cycles XRF scanning Late cretaceous Songliao Basin SK-2e borehole Paleoclimate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000538820400022
WOS关键词	WESTERN INTERIOR SEAWAY ; POLARITY TIME-SCALE ; NE CHINA ; LAKE ELGYGYTGYN ; ENVIRONMENTAL-CHANGES ; WEATHERING RESPONSE ; NEWARK SUPERGROUP ; CLIMATE-CHANGE ; RB/SR RECORD ; SOUTH CHINA
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324673
作者单位	[Yang, Hanfei] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; [Yang, Hanfei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yang, Hanfei; Huang, Yongjian; Zhang, Zhifeng; Wang, Chengshan] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China; [Huang, Yongjian; Zhang, Zhifeng; Wang, Chengshan] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China; [Ma, Chao] Univ Idaho, Dept Comp Sci, Moscow, ID 83843 USA
推荐引用方式 GB/T 7714	Yang, Hanfei,Huang, Yongjian,Ma, Chao,et al. Recognition of Milankovitch cycles in XRF core-scanning records of the Late Cretaceous Nenjiang Formation from the Songliao Basin (northeastern China) and their paleoclimate implications[J]. 中国科学院地理科学与资源研究所,2020,194.
APA	Yang, Hanfei,Huang, Yongjian,Ma, Chao,Zhang, Zhifeng,&Wang, Chengshan.(2020).Recognition of Milankovitch cycles in XRF core-scanning records of the Late Cretaceous Nenjiang Formation from the Songliao Basin (northeastern China) and their paleoclimate implications.JOURNAL OF ASIAN EARTH SCIENCES,194.
MLA	Yang, Hanfei,et al."Recognition of Milankovitch cycles in XRF core-scanning records of the Late Cretaceous Nenjiang Formation from the Songliao Basin (northeastern China) and their paleoclimate implications".JOURNAL OF ASIAN EARTH SCIENCES 194(2020).