青藏高原羌塘东部尕考查锐-西恰赛索闪长岩体特征及构造意义

doi:10.13686/j.cnki.dzyzy.2009.04.002

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Abstract The Gakaocharui-Xiqiasaisuo diorite rock body mainly consists of biotitic quartz diorite and gabrrodiorite. The pluton was formed in a volcanic arc environment in Early Jurassic defined by single zircon age of 183 Ma. The rocks are geochemically calc-alkaline and characterized by high Al, enriched K, Ba, Rb and Th, slight HFSE depletion such as Nb, Ta, P,Ti and Y. The initial Sr isotopes vary between 0.70424 and 0.70581, with high ε_Nd(t) ranging from -0.6 to +21.6.

Key words： Eastern Qiangtang Gakaocharui-Xiqiasaisuo diorite pluton tectonic significance Qinghai Province

Received: 11 May 2009

PACS:	P588.12
	P544

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	Articles by authors
	LI Li
	BAI Yun-shan
	NIU Zhi-jun
	DUAN Qi-fa
	BU Jian-jun

Cite this article:

LI Li,BAI Yun-shan,NIU Zhi-jun等. GEOCHEMICAL CHARACTERISTICS AND TECTONIC SIGNIFICANCE OF THE GAKAOCHARUI-XIQIASAISUO DIORITE IN EASTERN QIANGTANG, QINGHAI-TIBET PLATEAU[J]. GEOLOGY AND RESOURCES, 2009, 18(4): 250-255.

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http://manu25.magtech.com.cn/Jweb_dzyzy/EN/10.13686/j.cnki.dzyzy.2009.04.002 OR http://manu25.magtech.com.cn/Jweb_dzyzy/EN/Y2009/V18/I4/250

[1]

CHEN Hui-jun, CUI Tian-ri, QIAN Cheng, LI Lin-chuan, CHEN Jing-sheng, LI Wei, WU Xin-wei, JIANG Bin, SI Qiu-liang, QIN Tao, TANG Zhen, ZHANG Yu-jin, GUO Wei. ZIRCON U-Pb GEOCHRONOLOGY OF BASHENGHE PLUTON IN NORTHERN DAXINGANLING MOUNTAINS: Geological Implications[J]. GEOLOGY AND RESOURCES, 2019, 28(5): 405-412.