Ore-forming granites from Chaganhua molybdenum deposit, Central Inner;Mongolia, China: Geochemistry, geochronology and petrogenesis.

	Ore-forming granites from Chaganhua molybdenum deposit, Central Inner;Mongolia, China: Geochemistry, geochronology and petrogenesis.
	Liu YiFei 4; Nie FengJun ; Jiang SiHong ; Xi Zhong ; Zhang ZhiGang ; Xiao Wei ; Zhang Ke ; Liu Yong
刊名	ACTA PETROLOGICA SINICA
	2012
卷号	28 期号:2 页码:409-420
关键词	Porphyry molybdenum deposit High K calc-alkaline Granites Elements geochemistry Chaganhua Langshan orogen
ISSN号	914ZD
英文摘要	Located in central-west Inner Mongolia, China, Chaganhua porphyry molybdenum is a newly discovered large scale deposit. Geochronological and elemental data are presented for the ore-forming granites. The data show that the ore-forming granite was emplaced and crystallized in the Late Permian (253 similar to 254Ma). Compared with the molybdenite Re-Os dating (243Ma) from literature, it indicate that the Chaganhua molybdenum deposit was formed about 10Ma after the ore-forming granite was emplaced, which reflects a magmatic-hydrothertnal ore forming system after long lived evolution and differentiation of the ore-forming granite. The major elements data show these granites are high K calc-alkaline series, metaluminous-peraluminous and characteristic of high silicon, high alkali. Combined with the trace elements features, it indicates that the ore-forming magmas is most plausibly originated by partial melting of previous subduction modified source, and has inherited some features of subduction related magma. The ore-forming magmas has undergone plagioclase and potash feldspar dominated crystal fractionation process before transported to the ore forming structure and were contaminated by the Baoyintu gneiss. The forming of these granites and Chaganhua deposit were favored by the post-collision regime as the chemical features show.
学科主题	矿床地质
WOS关键词	PORPHYRY MO DEPOSIT ; CALC-ALKALINE ; VOLCANIC COMPLEX ; TRACE-ELEMENT ; ZIRCON ; ROCKS ; PB ; POTASSIUM ; EVOLUTION ; ORIGIN
WOS研究方向	Geology
语种	中文
WOS记录号	WOS:000301991500006
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39578]
专题	中国地质科学院地质研究所
作者单位	1.CAGS, Inst Mineral Resources, Beijing 100037, Peoples R China. 2.No 1 Geol Party Inner Mongolia Bur Geol & Mineral, Hohhot 010020, Peoples R China. 3.Univ Sci & Technol Beijing, Civil & Environm Engn Inst, Beijing 100083, Peoples R China. 4.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Liu YiFei,Nie FengJun,Jiang SiHong,et al. Ore-forming granites from Chaganhua molybdenum deposit, Central Inner;Mongolia, China: Geochemistry, geochronology and petrogenesis.[J]. ACTA PETROLOGICA SINICA,2012,28(2):409-420.
APA	Liu YiFei.,Nie FengJun.,Jiang SiHong.,Xi Zhong.,Zhang ZhiGang.,...&Liu Yong.(2012).Ore-forming granites from Chaganhua molybdenum deposit, Central Inner;Mongolia, China: Geochemistry, geochronology and petrogenesis..ACTA PETROLOGICA SINICA,28(2),409-420.
MLA	Liu YiFei,et al."Ore-forming granites from Chaganhua molybdenum deposit, Central Inner;Mongolia, China: Geochemistry, geochronology and petrogenesis.".ACTA PETROLOGICA SINICA 28.2(2012):409-420.