Tectonic environment of Ordovician carbonate-cherts in the Shihuigou area, North Qilian orogen

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	Tectonic environment of Ordovician carbonate-cherts in the Shihuigou area, North Qilian orogen
	Yan, Z (Yan Zhen); Li, JL (Li JiLiang); Yong, Y (Yong Yong); Xiao, WJ (Xiao WenJiao); Wang, ZQ (Wang ZongQi); Xiang, YS (Xiang YongSheng)
刊名	ACTA PETROLOGICA SINICA
	2008
卷号	24 期号:10 页码:2384-2394
关键词	North Qilian orogenic belt Shihuigou Seamount/oceanic island Chert
ISSN号	1000-0569
英文摘要	Ordovician cherts, mudstone, greywacke, calearenite, bioclastic limestone, reef limestone and alkaline basalts, ignimbrite, pyroclastic rocks represent the lithological associations of a seamount/oceanic island in the Shihuigou, North Qilian orogenic belt. The cherts contain abundant early-middle Ordovician conodonts, and mudstone and sandstone contain middle-late Ordovician Trilobita and graptolite fossils. Geochemical analysis of these chert samples indicates that they contain some detrital components from source area with distinctive character of LREE enrichment and negative Eu(CN) anomalous; they deposited in the continental margin rather than in the open sea or near the spreading ridge setting.
学科主题	沉积学与沉积岩
WOS关键词	RARE-EARTH ; ACCRETIONARY TECTONICS ; WESTERN-AUSTRALIA ; OCEANIC PLATEAUS ; ISLAND ARCS ; GEOCHEMISTRY ; SUBDUCTION ; PROVENANCE ; CALIFORNIA ; GROWTH
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000262520800019
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38698]
专题	中国地质调查局
作者单位	Zhongjin Gold Co Ltd, Beijing 100013, Peoples R China
推荐引用方式 GB/T 7714	Yan, Z ,Li, JL ,Yong, Y ,et al. Tectonic environment of Ordovician carbonate-cherts in the Shihuigou area, North Qilian orogen[J]. ACTA PETROLOGICA SINICA,2008,24(10):2384-2394.
APA	Yan, Z ,Li, JL ,Yong, Y ,Xiao, WJ ,Wang, ZQ ,&Xiang, YS .(2008).Tectonic environment of Ordovician carbonate-cherts in the Shihuigou area, North Qilian orogen.ACTA PETROLOGICA SINICA,24(10),2384-2394.
MLA	Yan, Z ,et al."Tectonic environment of Ordovician carbonate-cherts in the Shihuigou area, North Qilian orogen".ACTA PETROLOGICA SINICA 24.10(2008):2384-2394.