The relationship between magma and mineralization in Chaobuleng iron polymetallic deposit, Inner Mongolia

Wu, Chen; Wang, Biren; Zhou, Zhengchao; Wang, Guosheng; Zuza, Andrew V.; Liu, Changfeng; Jiang, Tian; Liu, Wencan; Ma, Shen

doi:10.1016/j.gr.2017.02.006

Cited by 28 publications

(20 citation statements)

References 96 publications

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“…These lines imply that an extensional environment in a post‐orogenic setting existed in the central and southern Great Xing'an Range (Figure ), related to the upwelling of the asthenosphere due to delamination of the thickened crust (Li, Ding, et al, ; Liu et al, ). This interpretation is also supported by the existence of late Jurassic bimodal volcanic rocks in Northern Great Xing'an Range (Li, Ding et al, ), and numerous coeval A‐type and S‐type granites in the NE China (Liu et al, ; Wu et al, ; Yang et al, ).…”

Section: Discussionmentioning

confidence: 85%

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Geochronology and geochemistry of the Late Jurassic bimodal volcanic rocks from Hailisen area, central‐southern Great Xing'an Range, Northeast China

et al. 2017

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Zircon U–Pb dating and whole‐rock geochemical analysis have been studied on the Late Jurassic volcanic rocks in the Hailisen area, Northeastern China, with the aim of constraining the tectonic evolution of the central‐southern Great Xing'an Range during the Late Jurassic. The volcanic rocks mainly consist of andesite from the Tamulangou Formation, and rhyolite and minor dacite from the Manketouebo Formation. The results of inductively coupled plasma‐mass spectrometry Zircon U–Pb dating for two andesites and one dacite indicate that they formed in the Late Jurassic (161–150 Ma). The mafic rocks are characteristic of low TiO2 (1.01–1.04 wt.%) and P2O5 (0.23–0.31 wt.%) contents, and high Al2O3 (17.19–20.18 wt.%) and CaO (6.69–7.45 wt.%) contents, and belong to the low‐K tholeiitic series. These mafic rocks are also characterized by moderately enriched light rare earth element (LREE) patterns and high abundances of Th, U, Zr, and Hf but negative Nb, Ta, and Ti anomalies. The felsic rocks are enriched in alkalis, Th, U, and LREEs; depleted in Ba, Sr, Nb, Ta, and Ti; and exhibit moderately LREE‐enriched patterns. These features indicate that the mafic volcanic rocks were likely formed by the partial melting of a lithospheric mantle that was metasomatized by subduction‐derived components, but the felsic rocks could derived by partial melting of a crustal source. The Tamulangou and Manketouebo formations have compositions of typical bimodal volcanism, an extensional environment, similar to a post‐orogenic setting, which might be related to the closure of Mongol–Okhotsk Ocean.

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Section: Discussionmentioning

confidence: 85%

“…Xing'an Range (Li, Ding et al, 2015), and numerous coeval A-type and S-type granites in the NE China Wu et al, 2017;Yang et al, 2014). 2.…”

Section: Tectonic Implicationsmentioning

confidence: 99%

Geochronology and geochemistry of the Late Jurassic bimodal volcanic rocks from Hailisen area, central‐southern Great Xing'an Range, Northeast China

et al. 2017

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“…The North China craton (also referred to as the Sino‐Korean craton or platform in the literature) is bounded to the southwest by the early Paleozoic Qilian orogen (e.g., Song et al, ; Wu et al, ; Wu, Zuza, et al, ; Xiao et al, ; Zuza et al, ), to the north by the late Paleozoic Central Asian Orogenic Belt (Kröner et al, ; Wu, Wang, et al, ; Xiao et al, ), to the east by the Mesozoic Su‐Lu and Jiao‐Liao‐Ji orogen belt (Pei et al, ; C. Peng et al, ; Yang et al, ; Wu et al, ), and to the south by the Mesozoic Qinling‐Dabie Shan orogen (Figure ). The craton is divided into several different tectonic units, which traditionally consists of two major Archean‐Proterozoic blocks (i.e., the Eastern and Western blocks) separated by the intervening ~1,500‐km‐long north trending Neoarchean‐Paleoproterozoic Central Orogenic Belt (Figure ; Kusky & Li, ; Kusky et al, , ; Meert & Santosh, ; C. Peng et al, ; P. Peng et al, ; Santosh, ; Wang et al, , ; Zhai, , ; Zhai & Liu, ; Zhai & Peng, ; Zhai & Santosh, ; Zhai et al, , , ) The Eastern block contains 3.8‐ to 2.6‐Ga gneiss and greenstone belts overlain by 2.6‐ to 2.5‐Ga metasedimentary cover, which is made up of the Longgang and Nangrim blocks that joined along the Paleoproterozoic Jiao‐Liao‐Ji deformed volcano‐sedimentary belt (Figure ; e.g., Kusky et al, ; Tam et al, ; Zhao et al, ).…”

Section: Regional Geologymentioning

confidence: 99%

A 1.9‐Ga Mélange Along the Northern Margin of the North China Craton: Implications for the Assembly of Columbia Supercontinent

Zhou

Zuza

et al. 2018

Tectonics

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The involvement and location of the Neoarchean-Paleoproterozoic North China craton in the supercontinent Columbia remains enigmatic, and the tectonic history along its margins impacts our understanding of connections between North China and other continents. Here we present structural observations from a Paleoproterozoic mélange that is located along its northern margin and that we refer to as the Bayan Obo mélange. It is composed of a structurally complex tectonic mixture of metapelites and metasedimentary rocks mixed with exotic blocks of ultramafic-mafic rocks, metabasalts, metacarbonate and alkaline rocks, and tonalite-trondhjemite gneisses. New zircon geochronology of the various constituent blocks suggest that it formed, and was subsequently deformed, at ca. 1.9 Ga. The oldest intramélange blocks are 2.45-to 2.54-Ga tonalite-trondhjemite-granodiorite rocks and granitoids that signify the stabilization of the northern North China in the Neoarchean-Paleoproterozoic. A ca. 2.45-Ga plagiogranite block probably originated by partial melting of the older tonalite-trondhjemite-granodiorite rocks. We suggest that this mélange formed in a sedimentary setting near the subduction trench, on the basis of mixing of upper and lower plate volcanic rocks and textural relationships.

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“…The metallogenic events discussed in this paper occurred in all three geodynamic regimes (particularly during the closure of the PAO), resulting in the development of one of the most important hydrothermal mineralization systems in the EDMB. Various types of deposit formed in the EDMB, including skarn type (e.g., the large‐scale Chaobuleng and Chagan Obao Fe–Zn deposits; Nie, Zhang, et al, ; Wu et al, ; Zhang, Nie, Jiang, et al, ), porphyry type (e.g., the large‐scale Qiyanqin'amu and Zhunsujihua Mo deposits; Sun et al, ; Liu, Nie, et al, ; Sun, Huang, Yan, et al, ; Sun, Huang, Li, et al, ; Wang, Chen, et al, ), and hydrothermal vein type (e.g., the large‐ and medium‐scale Aerhada, Gaoerqi Ag–Pb–Zn, Jilinbaolige Ag, and Bayandulan Cu deposits; Chen, Zhang, Li, Yang, & Deng, ; Zhang et al, ; Wang, Wang, et al, ; Ke et al, , ; Yu, Liu, et al, ).…”

Section: Geological Backgroundmentioning

confidence: 99%

“…The EDMB trends NE–SW over a distance of >800 km (J. Y. Li, ), and it is one of the most important metallogenic belts in China (Zhai, Deng, & Li, ; J. Y. Li, ; Nie, Jiang, & Zhang, ; Yu, Xue, Cong, Liu, & Duan, ; Liu, ; Wang, ). In recent decades, deposits of porphyry Mo (e.g., Qiyanqin'amu; Sun, Huang, Yan, Yan, & Lü, ; Sun, Huang, Li, Ye, & Zhou, ; Wang, Chen, et al, ), skarn Fe–Zn (e.g., Chaobuleng and Chagan Obao; Chang et al, ; Nie, Zhang, Du, Jiang, & Liu, ; Wang et al, ; Wu et al, ; Zhang et al, ), sedimentary exhalative Cu–Au (e.g., Xiaobaliang; Sun, Zhang, Zhang, & Sun, ; Wang, Deng, Zhang, Xu, & Zhang, ), and hydrothermal vein‐type Zn–Cu, W, and Ag–Au (e.g., Henmaiwenduer, Shamai, and Jilinbaolige; Hu, Nie, He, Zhang, & Liu, ; Cheng et al, ; Liu, Li, et al, ; Zhang et al, ; Li, Fu, et al, ) have been discovered in the EDMB (Figure b). Most studies of the EDMB have focused on the Cu, Au, Fe, W, and Ag mineralization and associated magmatism.…”

Section: Introductionmentioning

confidence: 99%

Genesis and tectonic setting of the Bulage Pb–Zn deposit, Inner Mongolia, China: Evidence from geology, fluid inclusions, EMPA, H–O isotope systematics, zircon U–Pb geochronology, and geochemistry

Jian

Cai

Fu³

et al. 2018

Geological Journal

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The recently discovered Bulage Pb-Zn deposit is located in the central part of the Erlianhot-Dongwuqi Metallogenic Belt (eastern Central Asian Orogenic Belt) in Inner Mongolia, China. The ore bodies of the deposit are hosted in alkali feldspar granite and in dacitic crystal tuff within Unit 2 of the Carboniferous Baoligaomiao Formation.The Bulage deposit is a low to moderate temperature hydrothermal vein-type deposit and is controlled by fractures. The hydrothermal mineralization can be divided into three stages: early (quartz + specularite ± magnetite), middle (quartz + sphalerite + galena ± chalcopyrite ± pyrite), and late (calcite ± quartz + sphalerite + galena). The deposit contains liquid-rich two-phase (VL-type) and pure-liquid (L-type) fluid inclusions. The initial ore-forming fluids are attributed to the low to moderate temperature and low salinity of a NaCl-H 2 O system. Hydrogen and oxygen isotopic compositions of quartz and calcite indicate that the ore-forming fluids were dominated by meteoric water with minor contributions of magmatic water. The quartz diorite, monzonite porphyry, and alkali feldspar granite in the deposit yield LA-ICP-MS zircon U-Pb ages of 305-300 Ma. These high-K calc-alkaline I-type granitoids are enriched in large-ion lithophile elements (LILEs; e.g., Rb, Cs, and K) and light rare earth elements (LREEs) and are depleted in high-field-strength elements (HFSEs; e.g., Nb, Ta, and Ti) and heavy rare earth elements (HREEs). The primary magma of these granitoids was derived from the partial melting of lower crust. The parental magma of the quartz diorite may have provided part of the ore-forming material and acted as a heat source for mineralization. Therefore, we infer that the Bulage Pb-Zn deposit was formed as a result of the southward subduction of the Paleo-Asian Ocean beneath the North China Craton during the Late Carboniferous.

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The relationship between magma and mineralization in Chaobuleng iron polymetallic deposit, Inner Mongolia

Cited by 28 publications

References 96 publications

Geochronology and geochemistry of the Late Jurassic bimodal volcanic rocks from Hailisen area, central‐southern Great Xing'an Range, Northeast China

Geochronology and geochemistry of the Late Jurassic bimodal volcanic rocks from Hailisen area, central‐southern Great Xing'an Range, Northeast China

A 1.9‐Ga Mélange Along the Northern Margin of the North China Craton: Implications for the Assembly of Columbia Supercontinent

Genesis and tectonic setting of the Bulage Pb–Zn deposit, Inner Mongolia, China: Evidence from geology, fluid inclusions, EMPA, H–O isotope systematics, zircon U–Pb geochronology, and geochemistry

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