Late Paleozoic crustal growth and tectonic evolution in Balkhash metallogenic belt(Kazakhstan), Central Asia

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	Late Paleozoic crustal growth and tectonic evolution in Balkhash metallogenic belt(Kazakhstan), Central Asia
	Liu, G (Liu Gang); Chen, XH (Chen XuanHua); Dong, SW (Dong ShuWen); Chen, ZL (Chen ZhengLe); Han, SQ (Han ShuQin); Yang, Y (Yang Yi); Ye, BY (Ye BaoYing); Shi, W (Shi Wei)
刊名	ACTA PETROLOGICA SINICA
	2012
卷号	28 期号:7 页码:1995-2008
关键词	Crustal growth Tectonic setting Sr-Nd-Pb isotope Balkhash metallogenic belt
ISSN号	1000-0569
英文摘要	The Balkhash metallogenic belt in Kazakhstan is a famous porphyritic Cu-Mo metallogenic belt in the Central Asian metallogenic domain. The Late Paleozoic granitoids from Balkhash metallogenic belt are mainly of high-K calc-alkaline and I-type granites, with shoshonite in the late stage. Geochemistry analyses and tectonic discrimination show a change of tectonic setting from syn-collision and volcanic arc in Carboniferous to post-collision in Permian. The Late Paleozoic granitoids from Bony porphyry deposit formed in classical island-arc environment, though that from Kounrad, Aktogai and Sayak are adakitic. The epsilon(Nd)(t) values for the Late Paleozoic granitoids here are between -5.87 and +5.94, and epsilon(Sr)(t) values from -17.16 to +51.10. The continental crustal growth histories are different on the both sides of Central Balkhash fault. On the east side, epsilon(Nd)(t) values from Aktogai and Sayak are very high with character of depleted mantle, suggesting the crustal growth in the Lite Paleozoic. On the west side, epsilon(Nd)(t) values from Borly and Kounrad are slightly low, suggesting the existence of the New Proterozoic basement and the mixing of crust and mantle during magmatism. The granitoids have Pb-206/Pb-204, Pb-207/Pb-204, and Pb-208/Pb-204 values ranging in 18.3346 similar to 20.9929, 15.5213 similar to 15.7321 and 38.2874 similar to 40.0209, respectively, showing the affinity of the Late Paleozoic magmatism in Balkhash with that in Tianshan, Altai and Junggar areas.
学科主题	构造地质学
WOS关键词	PORPHYRY COPPER-DEPOSITS ; ISOTOPIC EVIDENCE ; CONTINENTAL GROWTH ; NORTHEASTERN CHINA ; FOLD BELT ; S-TYPE ; I-TYPE ; ND ; KAZAKSTAN ; GRANITES
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000306631600004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39896]
专题	中国地质调查局
作者单位	China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Liu, G ,Chen, XH ,Dong, SW ,et al. Late Paleozoic crustal growth and tectonic evolution in Balkhash metallogenic belt(Kazakhstan), Central Asia[J]. ACTA PETROLOGICA SINICA,2012,28(7):1995-2008.
APA	Liu, G .,Chen, XH .,Dong, SW .,Chen, ZL .,Han, SQ .,...&Shi, W .(2012).Late Paleozoic crustal growth and tectonic evolution in Balkhash metallogenic belt(Kazakhstan), Central Asia.ACTA PETROLOGICA SINICA,28(7),1995-2008.
MLA	Liu, G ,et al."Late Paleozoic crustal growth and tectonic evolution in Balkhash metallogenic belt(Kazakhstan), Central Asia".ACTA PETROLOGICA SINICA 28.7(2012):1995-2008.