Geological evolution and huge ore-forming belts in the core part of the Central Asian metallogenic region

Zhu, Yongfeng; An, Fang; Feng, Wangyi; Zhang, Huichao

doi:10.1007/s12583-016-0673-7

Cited by 44 publications

(14 citation statements)

References 101 publications

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“…This subduction zone was responsible for the formation of an extensive Late Devonianearly Permian magmatic belt, of which remnants can be found in East Kazakhstan, West Junggar and the Chinese northern Tien Shan Choulet et al, 2011Choulet et al, , 2012Choulet et al, , 2013Filippova et al, 2001;Kröner et al, 2008;Tang et al, 2010;Wilhem et al, 2012;Windley et al, 2007;Xiao et al, 2010Xiao et al, , 2013Zhao and He, 2013). In the Chinese West Junggar, most late Paleozoic plutons range in age from 360 to 280 Ma (with a peak between 340 and 300 Ma) based on zircon U-Pb ages from Gao et al (2014), Guo et al (2010), Han et al (2006), Li et al (2014), Tang et al (2010), Wei et al (2011) and Zhu et al (2007). In that region, calc-alkaline arc magmatism (characterized mainly by I-type granites) dominated around~380-305 Ma (e.g.…”

Section: Zircon U-pb Datamentioning

confidence: 99%

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

et al. 2015

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International audienceThe Ili-Balkhash Basin in southeastern Kazakhstan is located at the junction of the actively deforming mountain ranges of western Junggar and the Tien Shan, and is therefore part of the southwestern Central Asian Orogenic Belt. The basement of the Ili-Balkhash area consists of an assemblage of mainly Precambrian microcontinental fragments, magmatic arcs and accretionary complexes. Eight magmatic basement samples (granitoids and tuffs) from the Ili-Balkhash area were dated with zircon U-Pb LA-ICP-MS and yield Carboniferous to late Permian (~ 350-260 Ma) crystallization ages. These ages are interpreted as reflecting the transition from subduction to (post-) collisional magmatism, related to the closure of the Junggar-Balkhash Ocean during the Carboniferous – early Permian and hence, to the final late Paleozoic accretion history of the ancestral Central Asian Orogenic Belt. Apatite fission track (AFT) dating of 14 basement samples (gneiss, granitoids and volcanic tuffs) mainly provides Cretaceous cooling ages. Thermal history modeling based on the AFT data reveals that several intracontinental tectonic reactivation episodes affected the studied basement during the late Mesozoic and Cenozoic. Late Mesozoic reactivation and associated basement exhumation is interpreted as distant effects of the Cimmerian collisions at the southern Eurasian margin and possibly of the Mongol-Okhotsk Orogeny in SE Siberia during the Jurassic – Cretaceous. Following tectonic stability during the Palaeogene, inherited basement structures were reactivated during the Neogene (constrained by Miocene AFT ages of ~ 17–10 Ma). This late Cenozoic reactivation is interpreted as the far-field response of the India-Eurasia collision and reflects the onset of modern mountain building and denudation in southeast Kazakhstan, which seems to be at least partially controlled by the inherited basement architecture

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Section: Zircon U-pb Datamentioning

confidence: 99%

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

et al. 2015

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“…The West Junggar region, located in the loci of the CAOB, is a highly endowed Cu–Au metallogenic province (Chen et al, ; Shen, Pan, et al, ; Shen & Shen, ; Shen, Zhou, et al, ; Tu, ; Zhu, ; Zhu, He, & An, ). Discovery of the Baogutu porphyry Cu–Au deposit has led to a reemergence of research interest in the geology and ore deposits of southern West Junggar, and lots of new magmatic/metallogenic age data have been yielded through a variety of methods in the past few years.…”

Section: Magmatism and Cu–au–mo Metallogenic Epochmentioning

confidence: 99%

“…Most of the Cu–Au deposits in southern West Junggar metallogenic belt occurred in the Late Carboniferous magmatic rocks (He & Zhu, ; Shen, Pan, et al, ; Zhu et al, ). The emplacement ages of the adakitic ore‐forming porphyries at Baogutu area are ca.…”

Section: Cu–au–mo Fertility Assessmentmentioning

confidence: 99%

Magmatism and Cu–Au–Mo mineralization of the Darbut tectono‐magmatic zone in West Junggar (Xinjiang), NW China: An updated review

Duan

Zhi

et al. 2018

Geological Journal

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The Darbut tectono‐magmatic zone in the West Junggar terrane (NW China) is an important component of the famous Circum‐Balkhash‐West Junggar metallogenic province. In this region, the discovery of some small but high‐quality Cu–Au deposits/prospects indicate substantial exploration potential for large porphyry Cu–Au deposits, for example, those in the neighbouring Kazakhstan. In this contribution, we concluded that the Dulunhe granite and small ore‐bearing granitoids in Baogutu are adakitic petrogenesis, and the Buerkesitai and Tasikuola granites (formed by magma mixing) are well comparable with the Xiaerpu granite. In summary, granitoids with similar petrogenesis and mineralization are distributed on both sides of the Darbut fault zone and show good correlations with the sinistral movement of the latter. We propose that the porphyry Cu–Mo–Au mineralization potential of the small calc‐alkaline I‐type granitic stocks in southern West Junggar region is significantly higher than that of alkaline A‐type large granitic batholiths. Besides, the magma mixing‐derived and adakitic granites have great prospecting potentialities. We argue that the Cu–Mo–Au mineralization in the Darbut tectono‐magmatic zone was originally E‐W trending, and then displaced by the Darbut sinistral strike‐slip faulting, instead of being controlled by NE‐NNE trending faults. The main regional mineralization pattern comprises a northern magmatic‐hydrothermal Au belt (~318 Ma), a middle porphyry Mo belt (~296 Ma), and a southern adakite and magma mixing granite‐related Cu–Au belt (~313 Ma). We infer that the Bieluagaxi Au belt may continue eastward to east of Sartohay.

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“…The ages of the lower Carboniferous volcanic rocks vary from 328 Ma to 357 Ma, as revealed by U-Pb dating of zircons from tuff, andesite and basalt (Wang and Zhu, 2007;An and Zhu, 2009b;Guo et al, 2010). Granodiorite, quartz-diorite and diorite stocks with U-Pb ages of 320-310 Ma (Liu et al, 2009;Zhu et al, 2014) intruded into the Lower Carboniferous volcanic sedimentary series. These stocks were numbered from No.…”

Section: Geology Of the Baogutu Gold-copper Districtmentioning

confidence: 99%

As–Sb–Bi–Au mineralization in the Baogutu gold deposit, Xinjiang, NW China

Zheng

Zhu

et al. 2015

Ore Geology Reviews

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Geological evolution and huge ore-forming belts in the core part of the Central Asian metallogenic region

Cited by 44 publications

References 101 publications

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

Late-Paleozoic emplacement and Meso-Cenozoic reactivation of the southern Kazakhstan granitoid basement

Magmatism and Cu–Au–Mo mineralization of the Darbut tectono‐magmatic zone in West Junggar (Xinjiang), NW China: An updated review

As–Sb–Bi–Au mineralization in the Baogutu gold deposit, Xinjiang, NW China

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