Geochronology of metarhyolites from the Kangbutiebao Formation in the Kelang basin, Altay Mountains, Xinjiang: Implications for the tectonic evolution and metallogeny

Chai, Fei; Mao, Jingwen; Dong, Lingqing; Yang, Fuquan; Liu, Feng; Geng, Xinxia; Zhang, Zhixin

doi:10.1016/j.gr.2009.03.002

Cited by 109 publications

(50 citation statements)

References 26 publications

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“…1). Recent SHRIMP zircon U-Pb dating on volcanic rocks of Kangbutiebao Formation yielded ages of 412.6 ± 3.5, 408.7 ± 5.3 and 406.7 ± 4.3 Ma, confirming that it was deposited in the early Devonian (Chai et al, 2009). …”

Section: Geological Backgroundmentioning

confidence: 84%

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Geochemistry, zircon U–Pb ages and Hf isotopes of the Paleozoic volcanic rocks in the northwestern Chinese Altai: Petrogenesis and tectonic implications

Wang

Yuan

Long

et al. 2011

Journal of Asian Earth Sciences

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Section: Geological Backgroundmentioning

confidence: 84%

“…2. and mid-Devonian Altai Formation, and both consist of clastic and volcanic sequence indicative of an active continental margin Chen et al, 2006;Long et al, 2008b;Chai et al, 2009). The two formations are distributed in the Qiongkuer and Erqis domains, which are separated from the Central domain by thrust faults (Fig.…”

Section: Geological Backgroundmentioning

confidence: 99%

Geochemistry, zircon U–Pb ages and Hf isotopes of the Paleozoic volcanic rocks in the northwestern Chinese Altai: Petrogenesis and tectonic implications

Wang

Yuan

Long

et al. 2011

Journal of Asian Earth Sciences

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“…9) is one of several Au and CuePbeZn VMS mineral systems (including a VMS also called Abagong) that are aligned along the NW-trending Abagong (or Abagong-Kurti) fault zone. These deposits are hosted in the metamorphosed felsic igneous and sedimentary rocks of the Kangbutiebao Formation which, according to Chai et al (2009), was deposited in the folded and strongly deformed Kelang volcano-sedimentary basin. The Kangbutiebao Formation rocks, comprising rhyolitic lavas and pyroclastics, mafic rocks (amphibolites), sandstone and carbonate rocks, are metamorphosed to greenschist-lower amphibolite facies.…”

Section: Abagong; a Skarn Or A Kiruna-style Feep Deposit?mentioning

confidence: 99%

“…Liu et al, 2009a,b) or simply reporting on associated lithogies (e.g. Li and Chen, 2004;Chai et al, 2009). From these authors it can be surmised that the Abagong mineralisation occurs primarily as structurally-controlled lenses and veins.…”

Section: Abagong; a Skarn Or A Kiruna-style Feep Deposit?mentioning

confidence: 99%

“…Liu et al (2009a), on the basis of REE composition (LREE-enriched, marked negative Eu anomalies) of the apatites as well as.the magnetiteeapatite ore association, classified Abagong as a Kiruna-style mineral system. The host rocks of the Kangbutiebao Formation have been studied in some detail by Chai et al (2009), who performed SHRIMP UePb analyses of zircons from the metarhyolites, yielding ages ranging from 412.6 AE 3.5 Ma to 406.7 AE 4.3 Ma. Liu et al (2009b), on the other hand, reported SHRIMP UePb zircon ages of 462 AE 3.6 Ma and 457.8 AE 3.1 Ma for gneissic granites, considered to be part of a large granitic batholith in the region.…”

Section: Abagong; a Skarn Or A Kiruna-style Feep Deposit?mentioning

confidence: 99%

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A review of mineral systems and associated tectonic settings of northern Xinjiang, NW China

Pirajno

Seltmann

Yang

2011

Geoscience Frontiers

197

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KEYWORDSMineral system; Porphyry and epithermal deposits; Volcanogenic massive sulphides and skarn systems; Northern Xinjiang of NW ChinaAbstract In this paper we present a review of mineral systems in northern Xinjiang, NW China, focussing on the Tianshan, West and East Junggar and Altay orogenic belts, all of which are part of the greater Central Asian Orogenic Belt (CAOB). The CAOB is a complex collage of ancient microcontinents, island arcs, oceanic plateaux and oceanic plates, which were amalgamated and accreted in Early Palaeozoic to Early Permian times. The establishment of the CAOB collage was followed by strike-slip movements and affected by intraplate magmatism, linked to mantle plume activity, best exemplified by the 250 Ma Siberian Traps and the 280 Ma Tarim event. In northern Xinjiang, there are numerous and economically important mineral systems. In this contribution we describe a selection of representative mineral deposits, including subduction-related porphyry and epithermal deposits, volcanogenic massive sulphides and skarn systems. Shear zone-hosted Au lodes may have first formed as intrusion-related and subsequently re-worked during strike-slip deformation. Intraplate magmatism led to the emplacement of concentrically zoned (Alaskan-style) maficeultramafic intrusions, many of which host orthomagmatic sulphide deposits. A huge belt of pegmatites in the Altay orogen, locally hosts world-class rare metal deposits. Roll-front,

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Anatexis of accretionary wedge, Pacific-type magmatism, and formation of vertically stratified continental crust in the Altai Orogenic Belt

et al. 2016

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Granitoid magmatism and its role in differentiation and stabilization of the Paleozoic accretionary wedge in the Chinese Altai are evaluated in this study. Voluminous Silurian‐Devonian granitoids intruded a greywacke‐dominated Ordovician sedimentary succession (the Habahe Group) of the accretionary wedge. The close temporal and spatial relationship between the regional anatexis and the formation of granitoids, as well as their geochemical similarities including rather unevolved Nd isotopic signatures and the strong enrichment of large‐ion lithophile elements relative to many of the high field strength elements, may indicate that the granitoids are product of partial melting of the accretionary wedge rocks. Whole‐rock geochemistry and pseudosection modeling show that regional anatexis of fertile sediments could have produced a large amount of melts compositionally similar to the granitoids. Such process could have left a high‐density garnet‐ and/or garnet‐pyroxene granulite residue in the deep crust, which can be the major reason for the gravity high over the Chinese Altai. Our results show that melting and crustal differentiation can transform accretionary wedge sediments into vertically stratified and stable continental crust. This may be a key mechanism contributing to the peripheral continental growth worldwide.

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Geochronology of metarhyolites from the Kangbutiebao Formation in the Kelang basin, Altay Mountains, Xinjiang: Implications for the tectonic evolution and metallogeny

Cited by 109 publications

References 26 publications

Geochemistry, zircon U–Pb ages and Hf isotopes of the Paleozoic volcanic rocks in the northwestern Chinese Altai: Petrogenesis and tectonic implications

Geochemistry, zircon U–Pb ages and Hf isotopes of the Paleozoic volcanic rocks in the northwestern Chinese Altai: Petrogenesis and tectonic implications

A review of mineral systems and associated tectonic settings of northern Xinjiang, NW China

Anatexis of accretionary wedge, Pacific-type magmatism, and formation of vertically stratified continental crust in the Altai Orogenic Belt

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