SHRIMP zircon U-Pb dating and geochemical characteristics of Laojunshan granite intrusion from the Wazha tungsten deposit, Yunnan Province and their implications for petrogenesis

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	SHRIMP zircon U-Pb dating and geochemical characteristics of Laojunshan granite intrusion from the Wazha tungsten deposit, Yunnan Province and their implications for petrogenesis
	Feng, JR (Feng JiaRui); Mao, JW (Mao JingWen); Pei, RF (Pei RongFu); Zhou, ZH (Zhou ZhenHua); Yang, ZX (Yang ZongXi)
刊名	ACTA PETROLOGICA SINICA
	2010
卷号	26 期号:3 页码:845-857
关键词	Geochemistry Granite Zircon U-Pb dating Strongly-peraluminous Wazha in Yunnan
ISSN号	1000-0569
英文摘要	The Wazha tungsten deposit in Yunnan Province is located in the northeast contact zone of Laojunshan granite intrusion and belongs to the southeastern Yunnan-western Guangxi tungsten-tin polymetallic metallogenic area in Cretaceous age. The tungsten deposit displays close temporal and genetic relationship with the granites occurring in the Wazha tungsten ore district, which are recognized to be the first phase of Laojunshan granites-medium-coarse two mica monzonitic granites. In this paper we applied SHRIMP zircon U-Pb dating and major, trace and rare earth element analysis to the granites, in order to clarify the rock-forming age, dynamic background, source rocks and formation temperature and pressure of the granites. The granites are high-K calc-alkaline series and are proposed to be strongly-peraluminous S-type granites. The crystallization age of the intrusion was determined to be 83.3 +/- 1.5Ma. They may emplaced within the lithospherie extensional period and Were derived from the remelt of clay-enriched argillaceous rocks. The formation temperature of granite magma was from 875 degrees C to 900 degrees C, the estimated pressure was about 7 x 10(8) pa, indicating that they were formed at depth of 26km.
学科主题	火成岩岩石学
WOS关键词	SOUTHEASTERN YUNNAN ; JIANGXI PROVINCE ; GEJIU
WOS研究方向	Geology
语种	中文
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000276676700017
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39127]
专题	中国地质调查局
作者单位	China Geol Survey, Ctr Res & Dev, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Feng, JR ,Mao, JW ,Pei, RF ,et al. SHRIMP zircon U-Pb dating and geochemical characteristics of Laojunshan granite intrusion from the Wazha tungsten deposit, Yunnan Province and their implications for petrogenesis[J]. ACTA PETROLOGICA SINICA,2010,26(3):845-857.
APA	Feng, JR ,Mao, JW ,Pei, RF ,Zhou, ZH ,&Yang, ZX .(2010).SHRIMP zircon U-Pb dating and geochemical characteristics of Laojunshan granite intrusion from the Wazha tungsten deposit, Yunnan Province and their implications for petrogenesis.ACTA PETROLOGICA SINICA,26(3),845-857.
MLA	Feng, JR ,et al."SHRIMP zircon U-Pb dating and geochemical characteristics of Laojunshan granite intrusion from the Wazha tungsten deposit, Yunnan Province and their implications for petrogenesis".ACTA PETROLOGICA SINICA 26.3(2010):845-857.