Some Pertinent Features of Mo-Mineralized Granitoids in the Circum-Pacific Region

doi:10.1111/rge.12046

	Some Pertinent Features of Mo-Mineralized Granitoids in the Circum-Pacific Region
	Ishihara, Shunso 1; Qing, Kezhang 2
刊名	RESOURCE GEOLOGY
	2014-10-01
卷号	64 期号:4 页码:367-378
关键词	Fe2O3/FeO ratio granitoids K/Rb ratio Mo deposits ore elements
ISSN号	1344-1698
DOI	10.1111/rge.12046
文献子类	Article
英文摘要	Petrological characteristics of granitic rocks related to the world large molybdenum deposits are studied. The granitoids are evaluated by Fe2O3+TiO2-FeO+MnO-MgO diagrams, and found to all plot to the magnetite-series field. They are all high silica and high-K series, but not A-type, except for the Climax-type porphyries and some others in the Colorado mineral belt. By-product molybdenum contained in porphyry copper deposits, lower grade but huge tonnage, occurs with calc-alkaline I-type magnetite-series granodiorite and monzogranite. Felsic intrusive rocks of the Climax mine are A-type and are exceptionally high in trace elements such as F and Rb, which are generally enriched with W and Sn-related granitoids that originated in crustal source rocks. The by-product molybdenites in porphyry copper deposits appear to originate in adakitic granodiorite or monzogranite, having deep origins with the subducted slab or thickened juvenile mafic lower crust. Therefore, there is no single magma type but the magnetite series, which concentrates a large volume of molybdenum in the ore deposits.
WOS关键词	ILMENITE-SERIES GRANITOIDS ; CENTRAL BRITISH-COLUMBIA ; MOLYBDENUM DEPOSITS ; OROGENIC BELT ; NEW-MEXICO ; MAGNETIC-SUSCEPTIBILITY ; ENDAKO BATHOLITH ; SIERRA-NEVADA ; SOUTH-KOREA ; NE CHINA
WOS研究方向	Geology ; Mineralogy
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000342758000006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86608]
专题	中国科学院地质与地球物理研究所
通讯作者	Ishihara, Shunso
作者单位	1.AIST, Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ishihara, Shunso,Qing, Kezhang. Some Pertinent Features of Mo-Mineralized Granitoids in the Circum-Pacific Region[J]. RESOURCE GEOLOGY,2014,64(4):367-378.
APA	Ishihara, Shunso,&Qing, Kezhang.(2014).Some Pertinent Features of Mo-Mineralized Granitoids in the Circum-Pacific Region.RESOURCE GEOLOGY,64(4),367-378.
MLA	Ishihara, Shunso,et al."Some Pertinent Features of Mo-Mineralized Granitoids in the Circum-Pacific Region".RESOURCE GEOLOGY 64.4(2014):367-378.