Metallogeny, minerogenic series, and gold mineralization of the Qinling;Orogen, China

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	Metallogeny, minerogenic series, and gold mineralization of the Qinling;Orogen, China
	Wang, PG 3; Ishihara, S
刊名	INTERNATIONAL GEOLOGY REVIEW
	2001
卷号	43 期号:6 页码:523-538
ISSN号	0020-6814
英文摘要	The Qinling orogen extends 1650 km E-W and has a width of 95-255 kin. It has a long evolutionary history of similar to3.02 Ca and a mineralization history of approximately 2.5 Ga. There are more than 400 mineral deposits of Au, Ag, Pb, Zn, Sb, Hg, Mo, W, Fe, Ni, Mn, rare elements, REE, U, V, P, As, Ba, Sr, Ti, Al, pyrite, gypsum, trona, halite, glauberite, mirabilite, blue asbestos, fluorite, rock crystal, mica, vermiculite, graphite, kyanite, andalusite, tale, fireclay, and K-feldspar in the Qinling orogen and adjacent areas. The deposits were formed in six tectono-minerogenic cycles and have been grouped into 21 regional minerogenic series.;The metallogeny of the Qinling orogen is closely associated with the tectonic evolution of the orogen, and most of the ore deposits were formed in two important metallogenic periods: (1) Middle Proterozoic to Early Paleozoic, which was characterized by spreading and rifting-related minerogenetic processes; during this period, the minerogenic series are directly associated with basic-ultrabasic magmatism and marine volcanism resulting from spreading-rifting and deep faulting; (2) Mesozoic, when mineralization was controlled by intracontinental subduction and postorogenic relaxational taphrogenesis or extension; the minerogenetic series are associated with intermediate-acid magmatism and terrestrial volcanism.;Gold is one of the most important ore-forming commodities in the Qinling orogen. Over 80% of those gold deposits were formed in the Mesozoic and Cenozoic and are related genetically to magmatism, terrestrial volcanism, and alluvial sedimentation. Most gold deposits in the Qinling orogenic belt are of hydrothermal origin. The Dashui-type gold deposits may be a new category of high-sulfidation epithermal gold deposits hosted by carbonate rocks of the Upper Paleozoic and Triassic in the southwestern part of the Qinling orogen. Shuangwang-type gold deposits in the middle of the Qinling orogen are characterized by low-grade (but large in terms of tonnage) ores hosted by brecciated and banded albitites, which are thought to have been formed by Yanshanian (late Mesozoic) magmatic-hydrothermal fluids injected into the Devonian sedimentary rocks. Carlin-type, quartz vein-type, and placer-type deposits also are important in this continental orogenic belt and adjacent areas.
学科主题	矿床地质
WOS研究方向	Geology
语种	英语
出版者	V H WINSTON & SON INC
WOS记录号	WOS:000171891700004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/37484]
专题	中国地质调查局
作者单位	1.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China. 2.Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan. 3.中国地质科学院地质力学研究所
推荐引用方式 GB/T 7714	Wang, PG,Ishihara, S. Metallogeny, minerogenic series, and gold mineralization of the Qinling;Orogen, China[J]. INTERNATIONAL GEOLOGY REVIEW,2001,43(6):523-538.
APA	Wang, PG,&Ishihara, S.(2001).Metallogeny, minerogenic series, and gold mineralization of the Qinling;Orogen, China.INTERNATIONAL GEOLOGY REVIEW,43(6),523-538.
MLA	Wang, PG,et al."Metallogeny, minerogenic series, and gold mineralization of the Qinling;Orogen, China".INTERNATIONAL GEOLOGY REVIEW 43.6(2001):523-538.