Geodynamic setting of gold deposits in Eastern and Central Trans-Baikal (Chita Region, Russia)

Zorin, Yu.A.; Zorina, L. D.; Спиридонов, А. М.; Rutshtein, I.G.

doi:10.1016/s0169-1368(00)00015-9

Cited by 84 publications

(45 citation statements)

References 14 publications

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“…Both plutonic and porphyry complexes include adakite-like rocks with geochemical characteristics of K-adakites associated with high-K calc-alkaline granitoids with typical arc-type characteristics. Recent studies of geology and geotectonics of Eastern Transbaikalia [75,91] together with geochronological data [46,53] are consistent with the emplacement of plutonic complex at the final stage of the collisional regime in the region; the formation of porphyry complex may have been overlapped with a tectonic setting transited to extension.…”

Section: Zhireken Porphyry Mo-cu Depositmentioning

confidence: 59%

“…Instrumental conditions and analytical details were as described in [52,60]. Geological features [90,91] and geochronological data [47,60,94] show that the Shakhtama pluton was intruded synchronously with the final stage of the collisional tectonics in the region. The age of ore-bearing porphyry complex is contemporaneous with the Late Jurassic transition from collisional to extensional tectonics, when a number of rift basins filled with thick volcanic and terrigenous sediments started to form in the region [83,106].…”

Section: Methodsmentioning

confidence: 99%

“…Mesozoic intrusive rocks are predominantly composed of granite and granodiorite, with minor granosyenite and diorite; subvolcanic rocks consist of granitic porphyry, granodioritic porphyry, dioritic porphyry, and lamprophyre. Volcanic rocks are represented by rhyolites, dacites, latites, andesites, shoshonites, and basalts [91].…”

Section: Eastern Transbaikaliamentioning

confidence: 99%

“…Geological features [90,91] and geochronological data [47,60,94] show that the Shakhtama pluton was intruded synchronously with the final stage of the collisional tectonics in the region. The age of ore-bearing porphyry complex is contemporaneous with the Late Jurassic transition from Recent studies of geology and geotectonics of Eastern Transbaikalia [75,91] together with geochronological data [46,53] are consistent with the emplacement of plutonic complex at the final stage of the collisional regime in the region; the formation of porphyry complex may have been overlapped with a tectonic setting transited to extension.…”

Section: Shakhtama Porphyry Mo Depositmentioning

confidence: 99%

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Paleozoic–Mesozoic Porphyry Cu(Mo) and Mo(Cu) Deposits within the Southern Margin of the Siberian Craton: Geochemistry, Geochronology, and Petrogenesis (a Review)

Berzina

Gimon

2016

Minerals

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Abstract:The southern margin of the Siberian craton hosts numerous Cu(Mo) and Mo(Cu) porphyry deposits. This review provides the first comprehensive set of geological characteristics, geochronological data, petrochemistry, and Sr-Nd isotopic data of representative porphyry Cu(Mo) and Mo(Cu) deposits within the southern margin of the Siberian craton and discusses the igneous processes that controlled the evolution of these magmatic systems related to mineralization. Geochronological data show that these porphyry deposits have an eastward-younging trend evolving from the Early Paleozoic to Middle Mesozoic. The western part of the area (Altay-Sayan segment) hosts porphyry Cu and Mo-Cu deposits that generally formed in the Early Paleozoic time, whereas porphyry Cu-Mo deposits in the central part (Northern Mongolia) formed in the Late Paleozoic-Early Mesozoic. The geodynamic setting of the region during these mineralizing events is consistent with Early Paleozoic subduction of Paleo-Asian Ocean plate with the continuous accretion of oceanic components to the Siberian continent and Late Paleozoic-Early Mesozoic subduction of the west gulf of the Mongol-Okhotsk Ocean under the Siberian continent. The eastern part of the study area (Eastern Transbaikalia) hosts molybdenum-dominated Mo and Mo-Cu porphyry deposits that formed in the Jurassic. The regional geodynamic setting during this mineralizing process is related to the collision of the Siberian and North China-Mongolia continents during the closure of the central part of the Mongol-Okhotsk Ocean in the Jurassic. Available isotopic data show that the magmas related to porphyritic Cu-Mo and Mo-Cu mineralization during the Early Paleozoic and Late Paleozoic-Early Mesozoic were mainly derived from mantle materials. The generation of fertile melts, related to porphyritic Mo and Mo-Cu mineralization during the Jurassic involved variable amounts of metasomatized mantle source component, the ancient Precambrian crust, and the juvenile crust, contributed by mantle-derived magmatic underplating.

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Section: Zhireken Porphyry Mo-cu Depositmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 99%

Section: Eastern Transbaikaliamentioning

confidence: 99%

Section: Shakhtama Porphyry Mo Depositmentioning

confidence: 99%

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Paleozoic–Mesozoic Porphyry Cu(Mo) and Mo(Cu) Deposits within the Southern Margin of the Siberian Craton: Geochemistry, Geochronology, and Petrogenesis (a Review)

Berzina

Gimon

2016

Minerals

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“…In fact, apart from the rifted intra-ocean or rifted continental arc as suggested by Hou et al (2001Hou et al ( , 2003Hou et al ( , 2004b, other extension settings including mid-ocean ridge, back-arc basin and post-collisional continental rift were also considered to be responsible for the formation of bimodal volcanic rocks and their hosted VMS-type deposits (Sillitoe, 1977(Sillitoe, , 1997Barrie and Hannington, 1999;Zorin et al, 2001). Moreover, as discussed above, the geochemical and isotopic signatures of the adakitic porphyries in the southern Yidun terrane do not support a slab origin, but an origination from the lower crust.…”

Section: Geodynamic Setting and Mechanism For The Late Triassic Magmamentioning

confidence: 98%

Zircon geochronology and Hf isotopes of Mesozoic intrusive rocks from the Yidun terrane, Eastern Tibetan Plateau: Petrogenesis and their bearings with Cu mineralization

Peng

Zhao

et al. 2014

Journal of Asian Earth Sciences

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The alluvial history and sedimentary record of the Priiskovoe site and its place in the Paleolithic prehistory of Siberia

Buvit

Terry

Kolosov³

et al. 2011

Geoarchaeology

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The Priiskovoe site in the Transbaikal Region of Siberia has long been considered one of the most ancient examples of the area's Middle Paleolithic. Priiskovoe and many other regional Paleolithic sites are part of a sequence of alluvial sediments found on or close to valley floor environments. We present several key pieces of evidence to suggest that Priiskovoe and its chipped‐stone assemblage are Upper Paleolithic in age. We examine the depositional history of the Selenga and Chikoi rivers and assess Priiskovoe's stratigraphy, geomorphology, and geochronology to argue that the Paleolithic component is dated around 26,000 14C yr B.P. within a thick buried soil ascribed to the Karginsk Interstadial. We then analyze the lithic material to conclude that the artifacts are characteristically Upper Paleolithic in terms of regional raw material selection, tool frequencies, and core reduction. Although several sites in the Transbaikal are potentially Middle Paleolithic contenders, Priiskovoe is best considered part of Siberia's Upper Paleolithic tradition. © 2011 Wiley Periodicals, Inc.

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Geodynamic setting of gold deposits in Eastern and Central Trans-Baikal (Chita Region, Russia)

Cited by 84 publications

References 14 publications

Paleozoic–Mesozoic Porphyry Cu(Mo) and Mo(Cu) Deposits within the Southern Margin of the Siberian Craton: Geochemistry, Geochronology, and Petrogenesis (a Review)

Paleozoic–Mesozoic Porphyry Cu(Mo) and Mo(Cu) Deposits within the Southern Margin of the Siberian Craton: Geochemistry, Geochronology, and Petrogenesis (a Review)

Zircon geochronology and Hf isotopes of Mesozoic intrusive rocks from the Yidun terrane, Eastern Tibetan Plateau: Petrogenesis and their bearings with Cu mineralization

The alluvial history and sedimentary record of the Priiskovoe site and its place in the Paleolithic prehistory of Siberia

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