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

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 2,3,4; Huang, Yongjian 1,4; Ma, Chao 5; Zhang, Zhifeng 1,4; Wang, Chengshan 1,4
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2020-06-01
卷号	194 页码:14
关键词	Milankovitch cycles XRF scanning Late cretaceous Songliao Basin SK-2e borehole Paleoclimate
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2019.104183
通讯作者	Huang, Yongjian(huangyj@cugb.edu.cn) ; Ma, Chao(chao@uidaho.edu)
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.
资助项目	National Natural Science Foundation of China[41972112] ; National Natural Science Foundation of China[41790455] ; Fundamental Research Funds for the Central Universities of China[2652017224] ; China Geological Survey Program[DD20160207] ; China Geological Survey Program[DD20190502]
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研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000538820400022
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; China Geological Survey Program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162228]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Yongjian; Ma, Chao
作者单位	1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 5.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]. JOURNAL OF ASIAN EARTH SCIENCES,2020,194:14.
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,194,14.
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):14.