气候变化领域集成服务门户(CCPortal): Sedimentological and mineralogical records from drill core SKD1 in the Jianghan Basin, Central China, and their implications for late Cretaceous-early Eocene climate change

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DOI	10.1016/j.jseaes.2019.103936
	Sedimentological and mineralogical records from drill core SKD1 in the Jianghan Basin, Central China, and their implications for late Cretaceous-early Eocene climate change
	Teng, Xiaohua; Fang, Xiaomin; Kaufman, Alan J.; Liu, Chenglin; Wang, Jiuyi; Zan, Jinbo; Yang, Yibo; Wang, Chunlian; Xu, Haiming; Schulte, Ruth F.; Piatak, Nadine M.
通讯作者	Fang, XM (通讯作者)
发表日期	2019
ISSN	1367-9120
EISSN	1878-5786
卷号	182
英文摘要	The Jianghan Basin, Central China, contains a thick, continuous sequence of early Cenozoic evaporite-bearing deposits that provide a wealth of information about early Cenozoic climate change and evaporites accumulation in East Asia. However, the paleoclimatic history of the basin and its effect on the evaporites are largely unknown. We obtained a deep drill core (SKD1, 2346.5 m long) from the late Cretaceous to early Eocene evaporite-bearing deposits in the Jianghan Basin. Detailed analyses of the lithofacies, mineralogy and geochemistry of the core indicate that salinization and deepening of the lake occurred (corresponding to the Yuyang Formation to the lower Xingouzui Formation), followed by desalting and shallowing (corresponding to the upper Xingouzui Formation). Reconstruction of the spatiotemporal evolution of the evaporites in the Jiangling depression suggests a transition from semi-arid conditions in the late Cretaceous to extremely arid conditions in the initial stage of the Eocene. The climate then became semi-humid during the deposition of the upper Xingouzui Formation, indicating a monsoon or monsoon-like climate in East Asia during the early Eocene. The southward migration of the depocenter of the Jiangling depression, coupled with a warm and extremely arid climate, resulted in the precipitation of evaporites during the accumulation of the upper Shashi Formation and the lower Xingouzui Formation. These results indicate great potential for identifying potash resources within the subsag in the southern Jiangling depression.
关键词	JIANGLING DEPRESSION SOIL COLOR SALT LAKE SEDIMENTS GEOCHEMISTRY CONSTRAINTS
英文关键词	Cretaceous; Paleogene; Sedimentary environment; Evaporites; Potash
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000486097300006
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259640
推荐引用方式 GB/T 7714	Teng, Xiaohua,Fang, Xiaomin,Kaufman, Alan J.,et al. Sedimentological and mineralogical records from drill core SKD1 in the Jianghan Basin, Central China, and their implications for late Cretaceous-early Eocene climate change[J]. 中国科学院青藏高原研究所,2019,182.
APA	Teng, Xiaohua.,Fang, Xiaomin.,Kaufman, Alan J..,Liu, Chenglin.,Wang, Jiuyi.,...&Piatak, Nadine M..(2019).Sedimentological and mineralogical records from drill core SKD1 in the Jianghan Basin, Central China, and their implications for late Cretaceous-early Eocene climate change.JOURNAL OF ASIAN EARTH SCIENCES,182.
MLA	Teng, Xiaohua,et al."Sedimentological and mineralogical records from drill core SKD1 in the Jianghan Basin, Central China, and their implications for late Cretaceous-early Eocene climate change".JOURNAL OF ASIAN EARTH SCIENCES 182(2019).