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DOI	10.1016/j.lithos.2014.08.007
	Petrogenesis and evolution of Quaternary basaltic rocks from the Wulanhada area, North China
	Fan, Qi-Cheng; Chen, Sheng-Sheng; Zhao, Yong-Wei; Zou, Hai-Bo; Li, Ni; Sui, Jian-Li
通讯作者	Fan, QC (通讯作者)
发表日期	2014
ISSN	0024-4937
EISSN	1872-6143
起始页码	289
结束页码	302
卷号	206
英文摘要	The origin of alkali basalts in eastern China has been the subject of considerable debate. Here we focus on the Wulanhada basalts located in the western block of North China Craton to provide new insights into recent deep mantle dynamics. The Wulanhada volcanic group has 30 volcanic cones with variable volumes, consisting of scoria cone (cinder cone + spatter cone) and lava. The Wulanhada volcanoes exhibit Strombolian eruption activities during late Pleistocene epoch and Holocene. The Wulanhada basalts are strongly alkaline rocks (tephrite). According to the characteristics of trace elements and Sr-Nd-Pb-Hf isotopic compositions, the Wulanhada magmas were mainly derived from garnet-bearing peridotite within the asthenosphere and underwent fractional crystallization of olivine and clinopyroxene without significant crustal contamination. Their elevated values of Na, Al, Sr/Sm, Sm/Hf, Zr/Hf, and Nb/Ta, positive Ba, K, Pb, and Sr anomalies and negative Zr, Hf anomalies, combined with a negative correlation between Hf-176/Hf-177 and Nd-143/Nd-144 and relatively low Sr-87/Sr-86, suggest that the magma source may be a mixture of garnet peridotites and carbonated melts. The presence of carbonated melts is likely associated with the sediments or fluids carried by the subducted or stagnant Pacific Plate. (C) 2014 Elsevier B.V. All rights reserved.
关键词	SUBDUCTION-ZONE METAMORPHISM SPINEL PERIDOTITE XENOLITHS INNER-MONGOLIA IMPLICATIONS CENOZOIC VOLCANIC-ROCKS EASTERN CHINA TRACE-ELEMENT UPPER-MANTLE LITHOSPHERIC MANTLE GEOCHEMICAL CHARACTERISTICS CHEMICAL CLASSIFICATION
英文关键词	Petrogenesis; Quaternary basaltic rocks; Wulanhada; North China
语种	英语
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
WOS类目	Geochemistry & Geophysics ; Mineralogy
WOS记录号	WOS:000343336100019
来源期刊	LITHOS
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/258361
推荐引用方式 GB/T 7714	Fan, Qi-Cheng,Chen, Sheng-Sheng,Zhao, Yong-Wei,et al. Petrogenesis and evolution of Quaternary basaltic rocks from the Wulanhada area, North China[J]. 中国科学院青藏高原研究所,2014,206.
APA	Fan, Qi-Cheng,Chen, Sheng-Sheng,Zhao, Yong-Wei,Zou, Hai-Bo,Li, Ni,&Sui, Jian-Li.(2014).Petrogenesis and evolution of Quaternary basaltic rocks from the Wulanhada area, North China.LITHOS,206.
MLA	Fan, Qi-Cheng,et al."Petrogenesis and evolution of Quaternary basaltic rocks from the Wulanhada area, North China".LITHOS 206(2014).