A review of the geological characteristics and mineralization history of;iron deposits in the Altay orogenic belt of the Xinjiang, Northwest;China

doi:10.1016/j.oregeorev.2013.04.002

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

	A review of the geological characteristics and mineralization history of;iron deposits in the Altay orogenic belt of the Xinjiang, Northwest;China
	Yang, Fuquan 6; Mao, Jingwen ; Liu, Feng ; Chai, Fengmei 1; Geng, Xinxia ; Zhang, Zhixin 2; Guo, Xuji 3; Liu, Guoren 4
刊名	ORE GEOLOGY REVIEWS
	2013
卷号	54 页码:1-16
关键词	Iron deposits Time-space distribution Geological characteristics Metallogenesis Altay China
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2013.04.002
英文摘要	In this review, we describe the geological characteristics and metallogenic-tectonic origin of Fe deposits in the Altay orogenic belt within the Xinjiang region of northwestern China. The Fe deposits are found mainly within three regions (ordered from northwest to southeast): the Ashele, Kelan, and Maizi basins. The principal host rocks for the Fe deposits of the Altay orogenic belt are the Early Devonian Kangbutiebao Formation, the Middle to Late Devonian Altay Formation, with minor occurrences of Lower Carboniferous and Early Paleozoic metamorphosed volcano-sedimentary rocks. The principal mineral-forming element groups of the deposits are Fe, Fe-Cu, Fe-Mn, Fe-P, Fe-Pb-Zn, Fe-Au, and Fe-V-Ti. The Fe deposits are associated with distinct formations, such as volcanic rocks, skarn deposits, pegmatites, granite-related hydrothermal vein mineralization, and mafic pluton-related V-Ti-magnetite deposits. The Fe deposits are most commonly associated with volcanic rocks in the upper Kangbutiebao Formation, in the volcano-sedimentary Kelan Basin, and in skarn deposits at several localities, including the lower Kangbutiebao Formation in the volcano-sedimentary Maizi Basin, and the Altay Formation at Jiaerbasidao-Kekebulake region. Homogenization temperatures of fluid inclusions in the prograde, retrograde and sulfide stages of the skarn type deposit are mainly medium- to high-temperature (cluster between 200 and 500 degrees C), medium-temperature (cluster between 200 and 340 degrees C) and low- to medium temperature (cluster between 160 and 300 degrees C), respectively. Ore fluids in the sedimentation period in the volcano-sedimentary type deposit are characterized by low- to medium temperature (with a peak around 190 degrees C), low to moderate salinity (3.23 to 22.71 wt.% NaCl equiv). Ore fluids in the pegmatite type deposit are characterized by low- to medium temperature (with a peak at 240 degrees C), low salinity (with a peak around 9 wt.% NaCl equiv). An analysis of the isotopic data for Fe deposits from the Altay orogenic belt indicates that the sulfur was derived from several sources, including volcanic rocks and granite, as well as bacterial reduction of sulfate from seawater. The present results indicate that different deposit types were derived from various sources. The REE geochemistry of rocks and ores from the Fe deposits in the Altay orogenic belt suggests that the ore-forming materials were derived from mafic volcanic rocks. Based on isotopic age data, the timing of the mineralization can be divided into four broad intervals: Early Devonian (410-384 Ma), Middle Devonian (377 Ma), Early Permian (287-274 Ma), and Early Triassic (c. 244 Ma). The ore-forming processes of the Fe deposits are closely related to volcanic activity and the emplacement of intermediate and felsic intrusions. We conclude that Fe deposits within the Altay orogenic belt developed in a range of tectonic settings, including continental arc, post-collisional extensional settings, and intracontinental settings. (c) 2013 Elsevier B.V. All rights reserved.
学科主题	矿床地质
WOS关键词	YANGTZE-RIVER VALLEY ; NW CHINA ; SOUTHERN MARGIN ; TECTONIC EVOLUTION ; KIRUNA-TYPE ; GEOCHEMISTRY ; GEOCHRONOLOGY ; AGE ; MOUNTAINS ; MAGNETITE
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000320075900001
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40039]
专题	中国地质科学院矿产资源研究所
作者单位	1.Chinese Acad Geol Sci, Inst Mineral Resources, MLR Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China. 2.Xinjiang Univ, Xinjiang Key Lab Geodynam Proc & Metallogen Progn, Coll Geol & Min Engn, Urumqi 830049, Xinjiang, Peoples R China. 3.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Xinjiang, Peoples R China. 4.Xinjiang Nonferrous Geoexplorat Bur, Geol Team 706, Altay 836500, Xinjiang, Peoples R China. 5.Inst Geol & Mineral Resources Xinjiang, Urumqi 830000, Xinjiang, Peoples R China. 6.中国地质科学院矿产资源研究所
推荐引用方式 GB/T 7714	Yang, Fuquan,Mao, Jingwen,Liu, Feng,et al. A review of the geological characteristics and mineralization history of;iron deposits in the Altay orogenic belt of the Xinjiang, Northwest;China[J]. ORE GEOLOGY REVIEWS,2013,54:1-16.
APA	Yang, Fuquan.,Mao, Jingwen.,Liu, Feng.,Chai, Fengmei.,Geng, Xinxia.,...&Liu, Guoren.(2013).A review of the geological characteristics and mineralization history of;iron deposits in the Altay orogenic belt of the Xinjiang, Northwest;China.ORE GEOLOGY REVIEWS,54,1-16.
MLA	Yang, Fuquan,et al."A review of the geological characteristics and mineralization history of;iron deposits in the Altay orogenic belt of the Xinjiang, Northwest;China".ORE GEOLOGY REVIEWS 54(2013):1-16.