Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia

	Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia
	Li GuangMing; Qin KeZhang; Li JinXiang
刊名	ACTA PETROLOGICA SINICA
	2008-12-01
卷号	24 期号:12 页码:2679-2700
关键词	Porphyry copper deposits Geological features Geodynamics Balkhash Central Kazakhstan Central Asia
ISSN号	1000-0569
文献子类	Article
英文摘要	Central Kazakhslan located in the center of the Central Asia Orogenic Belt (CAOB), is one of the largest porphyry copper deposit metallogenic domains, wherein hosts tens of large and superlarge ore deposits. In the area, three major subtypes of porphyry copper deposits have been recognized: porphyry Cu-Au deposits, porphyry Cu deposits and porphyry Cu-Mo deposits, mostly associated with contemporaneous volcanic rocks. Established alteration zonation consists of alkaline and acidic alterations. delta(34) S (err) values of sulfides from porphyry copper deposits range from -7.1 parts per thousand to 4.2 parts per thousand, showing it deep source. Pb isotope analyses reveal that ore-forming materials were generated from lower crust and upper mantle. In the central Kazakhstan multistage tectonic evolutions were followed by formation of multistage porphyry copper deposits. Early Paleozoic porphyry copper deposits have been formed during early stages of island ares evolution, but late Paleozoic porphyry copper deposits are confined in the Devonian volcano-platonic belts, and their Carboniferous-Permian volcano-plutonic belts. From northwest to southeast towards the central Kazakhstan, ore-forming ages of porphyry copper deposits are successively younger. Whereas study on porphyry copper deposits in the region throughout tens yeah, some key problems yet remain uncertain,e. g. high-precise age-dating on intrusive stocks and mineralizations for the major porphyry copper deposits, temparol-spatial distribution framwork and geodynamic settings. The linkage and comprehensive correlation between Balkhash porphyry copper belt and adjacent Chinese western Jungar and western Tienshan is of great significance for further exploration.
WOS关键词	PALEOZOIC CRUSTAL GROWTH ; NW CHINA ; XINJIANG ; CLINOPYROXENE ; EXSOLUTION ; EVOLUTION ; TIANSHAN ; MELANGE ; COLLAGE ; ROCKS
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000262521400003
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/69594]
专题	中国科学院地质与地球物理研究所
通讯作者	Li GuangMing
作者单位	Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li GuangMing,Qin KeZhang,Li JinXiang. Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia[J]. ACTA PETROLOGICA SINICA,2008,24(12):2679-2700.
APA	Li GuangMing,Qin KeZhang,&Li JinXiang.(2008).Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia.ACTA PETROLOGICA SINICA,24(12),2679-2700.
MLA	Li GuangMing,et al."Geological features and tectonic setting of porphyry copper deposits rounding the Balkhash region, Central Kazakhstan, Central Asia".ACTA PETROLOGICA SINICA 24.12(2008):2679-2700.