A review of the geological characteristics and geodynamic mechanisms of Late Paleozoic epithermal gold deposits in North Xinjiang, China

Yang, Fuquan; Mao, Jingwen; Bierlein, Frank P; Pirajno, Franco; Zhao, Chao; Ye, Huishou; Liu, Feng

doi:10.1016/j.oregeorev.2008.09.003

Cited by 70 publications

(27 citation statements)

References 37 publications

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“…Tectonic settings for the epithermal systems were suggested to be island arcs, continental margins, back-arc extensional basins, superimposed volcanic basins and/or intra-continental rifts. However, these works were mainly published in Chinese, with only few papers published in English (e.g., Pirajno et al 1997;Qin et al 2002;Rui et al 2002;Chen et al 2003;Long et al 2005;Yang et al 2009;Pirajno et al 2011). In this paper, on the basis of our studies in the area and the above cited published literature, we summarize and describe the principal geological characteristics including the spatial-temporal distribution of the epithermal deposits in North Xinjiang, and discuss their ore-forming tectonic settings and models.…”

Section: Introductionmentioning

confidence: 91%

“…1), exemplified by Yanacocha ([870 t Au), Porgera ([550 t Au), Ladolam ([1,300 t Au; Muller et al 2002;Simmons and Brown 2006), Cripple Creek (780 t Au) and Hishikari ([250 t Au); (2) the Tethysides or Mediterranean orogenic belt, represented by Chelopech in Bulgaria (193 t Au; Moritz et al 2005); and (3) the Central Asia orogenic belt (CAOB), illustrated by Kochbulak in Uzbekistan (125 t Au; Kerrich et al 2000). The formation and preservation of the Paleozoic-Triassic epithermal systems in CAOB have been poorly documented (Chen 2000;Yakubchuk et al 2005;Yang et al 2009). …”

Section: Introductionmentioning

confidence: 99%

“…The geology, geochemistry and geochronology of many of these deposits were studied by Chinese geologists (e.g., Bao et al 2002;Chen et al 2003;Fu et al 1996;Han et al 2002;Jia et al 2001aJia et al , 2003Li et al 1998Li et al , 2001Liu et al 2002;Mao et al 2002;Qin et al 2002;Sha et al 2003;Wang et al 1997Wang et al , 2005Xiao et al 2001;Yang et al 1997Yang et al , 1999bYang et al , 2005Zhai et al 2006Zhai et al , 2007. The mineralization styles were usually reported as LS and HS types, despite a dearth of data on alteration and mineral assemblages.…”

Section: Introductionmentioning

confidence: 99%

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Epithermal deposits in North Xinjiang, NW China

Chen

Pirajno

et al. 2011

Int J Earth Sci (Geol Rundsch)

219

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The North Xinjiang region (NW China) is an important part of the Central Asia Orogenic Belt, situated at the junction of Siberia, Tarim and Kazakhstan plates. It is an area characterized by multiple stages of Phanerozoic continental growth, during which several porphyry and epithermal systems were formed. The relationship of these mineral systems to the geodynamic evolution of the region has not yet been well understood. In this paper, we list the main geological characteristics of 21 significant epithermal precious and base metal deposits in North Xinjiang, and classify them into high-sulfidation and low-sulfidation styles, with the latter being predominant. We have selected seven epithermal deposits representing different styles formed under different tectonic regimes and discuss their geology and geochemistry in some detail. The depositscale geology and geochemistry of epithermal systems in North Xinjiang are essentially similar to those in other parts of the world. All epithermal deposits in North Xinjiang are hosted in volcanic rocks with ages ranging from Devonian to Triassic, with the Early Carboniferous volcanic sequences being the most important, followed by the Permian and Triassic. The Devonian-Early Carboniferous host rocks belong to the calc-alkaline series that developed in pre-collisional arc-back-arc basin systems; whereas the Permian-Triassic host volcanic rocks of shoshonite series formed in post-subduction regimes. Available isotopic ages of these epithermal systems cluster in two periods: Early Carboniferous ([320 Ma) and Late Carboniferous-Triassic (320-220 Ma), reflecting two metallogenic episodes that occurred during subductionrelated accretion and post-subduction collision regimes, respectively. Accordingly, three groups of epithermal deposits in North Xinjiang can be recognized as (1) precollisional deposits without or with negligible collisionalrelated modification, (2) deposits formed in collision regime and (3) ore systems strongly overprinted by fluid flow in post-subduction collision regime.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Epithermal deposits in North Xinjiang, NW China

Chen

Pirajno

et al. 2011

Int J Earth Sci (Geol Rundsch)

219

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“…The Kanggur shear zone contains a series of epithermal Au, orogenic Au, and magmatic Cu-Ni sulfide deposits formed at ca. 290-250 Ma (Mao et al, 2005;Yang et al, 2009;Pirajno et al, 2011).…”

Section: Regional Geologymentioning

confidence: 99%

Geochronology and geochemistry of igneous rocks in the Bailingshan area: Implications for the tectonic setting of late Paleozoic magmatism and iron skarn mineralization in the eastern Tianshan, NW China

et al. 2016

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“…1 and 3). Qin et al (2003) and Yang et al (2009), note that names of tectonic terranes may differ from other published versions of NW China geology; 1) Ashele CueZn, 2) Duolonasayi Au, 3) Saisu Au, rare metals deposits at 4, 5, 6, 7, 8, 9, 13, 14, 15 and 33, 10) Recent works on the Junggar fold belts include Tang et al (2010) and Zhang et al (2010a,b, in press). Both fold belts are interpreted as having formed by the accretion of island arcs and intervening oceans (ophiolites), between the Cambrian and the Carboniferous.…”

Section: West and East Junggar Fold Beltsmentioning

confidence: 99%

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

Pirajno

Seltmann

Yang

2011

Geoscience Frontiers

Self Cite

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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A review of the geological characteristics and geodynamic mechanisms of Late Paleozoic epithermal gold deposits in North Xinjiang, China

Cited by 70 publications

References 37 publications

Epithermal deposits in North Xinjiang, NW China

Epithermal deposits in North Xinjiang, NW China

Geochronology and geochemistry of igneous rocks in the Bailingshan area: Implications for the tectonic setting of late Paleozoic magmatism and iron skarn mineralization in the eastern Tianshan, NW China

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

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