Re-Os ages for molybdenum mineralization in the Fengning region of northern Hebei Province, China: New constraints on the timing of mineralization and geodynamic setting

doi:10.1016/j.jseaes.2013.03.014

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院矿产资源研究所

	Re-Os ages for molybdenum mineralization in the Fengning region of northern Hebei Province, China: New constraints on the timing of mineralization and geodynamic setting
	Jiang, Si-Hong 3; Liang, Qing-Ling ; Bagas, Leon 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2014
卷号	79 页码:873-883
关键词	Re-Os age Molybdenum Geodynamic setting Lithospheric thinning Fengning region China
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2013.03.014
英文摘要	A recently recognized molybdenum (Mo) metallogenic belt is present within and adjacent to the northern part of the North China Craton (NCC). More than 20 Mo deposits are present in the belt, including the Sadaigoumen and Dacaoping porphyry deposits located in the Fengning region of the northern part of Hebei Province. The Sadaigoumen deposit has a Re-Os molybdenite weighted mean age of 236.5 +/- 2.2 Ma (MSWD = 1.4, n = 6), which is more reliable than existing dates and is interpreted as the precise age for formation of the deposit. The Dacaoping Mo deposit is about 100 million years younger, with a Re-Os molybdenite isochron age of 140.1 +/- 3.4 Ma (2 sigma, MSWD = 0.26, n = 5), which is within error of the weighted mean age of 139.4 +/- 0.9 Ma. The ages of the two deposits show that there are at least two episodes of Mo porphyry formation in the Fengning region. In combination with the regional geological evolution of this part of the craton margin, we propose that the Triassic Mo event at Sadaigoumen is associated with a collisional event during the closure of the ancient Asian Ocean, whereas the Early Cretaceous Mo event at Dacaoping is associated with lithospheric thinning of the NCC. (C) 2013 Elsevier Ltd. All rights reserved.
学科主题	矿床地质
WOS关键词	PORPHYRY MO DEPOSIT ; ASIAN OROGENIC BELT ; U-PB AGES ; SINO-KOREAN CRATON ; INNER-MONGOLIA ; TECTONIC IMPLICATIONS ; FLUID INCLUSION ; HIGHLY PRECISE ; EVOLUTION ; SCALE
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000330605000020
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40441]
专题	中国地质科学院矿产资源研究所
作者单位	1.CAGS, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China 2.Univ Western Australia, ARC Ctr Excellence Core Crust Fluid Syst, Ctr Explorat Targeting, Crawley, WA 6009, Australia 3.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Jiang, Si-Hong,Liang, Qing-Ling,Bagas, Leon. Re-Os ages for molybdenum mineralization in the Fengning region of northern Hebei Province, China: New constraints on the timing of mineralization and geodynamic setting[J]. JOURNAL OF ASIAN EARTH SCIENCES,2014,79:873-883.
APA	Jiang, Si-Hong,Liang, Qing-Ling,&Bagas, Leon.(2014).Re-Os ages for molybdenum mineralization in the Fengning region of northern Hebei Province, China: New constraints on the timing of mineralization and geodynamic setting.JOURNAL OF ASIAN EARTH SCIENCES,79,873-883.
MLA	Jiang, Si-Hong,et al."Re-Os ages for molybdenum mineralization in the Fengning region of northern Hebei Province, China: New constraints on the timing of mineralization and geodynamic setting".JOURNAL OF ASIAN EARTH SCIENCES 79(2014):873-883.