Genesis of the Yuanlingzhai porphyry molybdenum deposit, Jiangxi province, South China: Constraints from petrochemistry and geochronology

doi:10.1016/j.jseaes.2013.05.016

	Genesis of the Yuanlingzhai porphyry molybdenum deposit, Jiangxi province, South China: Constraints from petrochemistry and geochronology
	Huang, Fan 4; Wang, Denghong ; Santosh, M.; Wang, Chenghui ; Zeng, Zailin 2; Liu, Shanbao ; Wang, Liqiang ; Zhang, Yongzhong 2
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2014
卷号	79 页码:759-776
关键词	U-Pb geochronology Re-Os geochronology Petrochemistry Yuanlingzhai porphyry Mo deposit Keshubei granite Nan ling South China
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2013.05.016
英文摘要	The newly discovered Yuanlingzhai porphyry molybdenum (Mo) deposit in southern Jiangxi province belongs to the group of Mo-only deposits in the Nanling region. The mineralization developed at contact zones between the Yuanlingzhai granite porphyry and Neoproterozoic metamorphic rocks,of the Xunwu Formation. Precise LA-MC-ICPMS zircon U-Pb dating of the Yuanlingzhai porphyry, as well as the adjacent western Keshubei and eastern Keshubei granites, yielded ages of 165.49 +/- 0.59 Ma, 159.68 +/- 0.43 Ma, and 185.13 +/- 0.52-195.14 +/- 0.63 Ma, respectively. Molybdenite Re-Os isochron ages of the ores are 160 +/- 1-162.7 +/- 1.1 Ma, which is consistent with the age of large-scale W-Sn deposits in South China. The Yuanlingzhai porphyry is characterized by high K2O, P2O5, and A/CNK (1.33-1.59), and low CaO and Na2O. The rock shows relatively enriched LREE without significant Eu anomalies (Eu/Eu* = 0.80-0.90). Geochemical and mineralogical characteristics indicate that the ore-hosting porphyry is a typical S-type granite generated from the partial melting of crustal material with only minor mantle contribution. Both Harker and evolutionary discrimination diagrams indicate that the Yuanlangzhai and western Keshubei granites are not products of co-magmatic evolution. The Keshubei granites and Xunwu Formation were not significant sources for the components in the porphyry mineralization, but the Yuanlangzhai granite may have supplied some ore-forming material. However, the main ore-forming material was carried by fluids from deep sources, as demonstrated by fluid inclusion and stable isotope data from the molybdenum deposit. The Mo porphyry deposit formed in an extensional setting, and was possibly associated with Jurassic subduction of the Izanagi Plate. (C) 2013 Elsevier Ltd. All rights reserved.
学科主题	矿床地质
WOS关键词	NATURAL REFERENCE MATERIAL ; PLASMA-MASS SPECTROMETRY ; SLAB SUBDUCTION MODEL ; A-TYPE GRANITES ; U-PB ZIRCON ; FLAT-SLAB ; ICP-MS ; GEOCHEMICAL CHARACTERISTICS ; GEODYNAMIC PROCESSES ; CONTINENTAL-CRUST
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000330605000014
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40417]
专题	中国地质科学院
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.Santosh, M.] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.Jiangxi Bur Geol & Mineral Resource Explorat & De, South Jiangxi Geol Survey Party, Ganzhou 341000, 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	Huang, Fan,Wang, Denghong,Santosh, M.,et al. Genesis of the Yuanlingzhai porphyry molybdenum deposit, Jiangxi province, South China: Constraints from petrochemistry and geochronology[J]. JOURNAL OF ASIAN EARTH SCIENCES,2014,79:759-776.
APA	Huang, Fan.,Wang, Denghong.,Santosh, M..,Wang, Chenghui.,Zeng, Zailin.,...&Zhang, Yongzhong.(2014).Genesis of the Yuanlingzhai porphyry molybdenum deposit, Jiangxi province, South China: Constraints from petrochemistry and geochronology.JOURNAL OF ASIAN EARTH SCIENCES,79,759-776.
MLA	Huang, Fan,et al."Genesis of the Yuanlingzhai porphyry molybdenum deposit, Jiangxi province, South China: Constraints from petrochemistry and geochronology".JOURNAL OF ASIAN EARTH SCIENCES 79(2014):759-776.