The Glafirinskoe and related skarn Cu-Au-W-Mo deposits in the Northern Altai, SW Siberia, Russia: Geology, igneous geochemistry, zircon U-Pb geochronology, mineralization, and fluid inclusion characteristics

Soloviev, Serguei G.; Kryazhev, S. G.; Shapovalenko, Vasily N.; Dvurechenskaya, Svetlana S.; Семенова, Д. В.; Kalinin, Yury A.; Voskresensky, Konstantin I.; Сидорова, Н. В.

doi:10.1016/j.oregeorev.2021.104382

Cited by 9 publications

(6 citation statements)

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“…The latter is consistent with a strong enrichment of the mineralization in W and Mo indicating the oxidized W-Mo-Cu-Au metallogenic type. As a result, the skarn-porphyry W-Mo-Cu(-Au) mineralization associated with the Molo-Sarychat pluton complements the group of similar deposits associated with high-K calc-alkaline to shoshonitic series intrusions in the Middle Tien Shan and globally (Soloviev, 2011(Soloviev, , 2015Soloviev et al, 2021;Soloviev & Kryazhev, 2017. These deposits are characterized by a combination of porphyry Cu-Au(-Mo)…”

Section: Potential Metallogenic Implicationsmentioning

confidence: 79%

“…Regional tectonic setting and the major Late Palaeozoic gold, tungsten and other deposits of the Tien Shan metallogenic belt (‘Tien Shan Gold Belt’) (modified after Biske & Seltmann, 2010; Biske et al, 2013; Kudrin et al, 1990; Seltmann & Porter, 2005; Seltmann et al, 2011, 2014; Soloviev & Kryazhev, 2017, 2018; Soloviev et al, 2024b, 2024c; Yakubchuk et al, 2005, 2012). …”

Section: Regional Tectonic and Metallogenic Settingmentioning

confidence: 99%

“…Tectonic setting of the Late Palaeozoic high‐K calc‐alkaline to shoshonitic series intrusions and associated W and other deposits and occurrences along the ‘Nikolaev Line’ (modified after Kröner et al, 2017; Kudrin et al, 1990; Jenchuraeva, 2001; Soloviev, 2015; Soloviev et al, 2024b, 2024c). …”

Section: Regional Tectonic and Metallogenic Settingmentioning

confidence: 99%

“…The high‐potassic intrusions situated along the ‘Nikolaev Line’ are accompanied by significant skarn to porphyry W‐Mo(‐Cu‐Au) to Mo(‐W‐Cu) to W‐Au mineralization (Kudrin et al, 1990; Soloviev, 2011, 2015; Soloviev et al, 2024b, 2024c; Soloviev & Kryazhev, 2018). The Kensu W‐Mo skarn and Cu‐Mo‐W‐Au stockwork deposit and the Kumbel W‐Cu skarn and Au‐W stockwork deposit are the most significant among them (Soloviev, 2011, 2015; Soloviev et al, 2024c). In addition, there is intrusion‐related to orogenic type Au(‐W) mineralization that is represented by numerous occurrences and small (?)…”

Section: Tectonic and Metallogenic Setting Of The ‘Nikolaev Line’mentioning

confidence: 99%

“…Despite their importance for understanding the tectonic and metallogenic evolution of the region, the age of these intrusions remains poorly constrained, with almost no relevant isotopic U‐Pb zircon data obtained. Similarly, only limited data on trace element contents in the igneous rocks important for determining their tectonic setting has been published (Soloviev, 1993, 2011, 2015; Soloviev et al, 2024b, 2024c; Soloviev & Kryazhev, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Late Palaeozoic potassic igneous rocks of the Molo‐Sarychat pluton in the eastern Kyrgyz Tien Shan: Geochemistry, U–Pb zircon geochronology and implications for related skarn‐porphyry Mo‐W‐Cu‐Au mineralization

Soloviev,

Kryazhev,

Semenova

et al. 2024

Geological Journal

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The Molo‐Sarychat multiphase pluton is situated along the fault systems of the ‘Main Structural Line of Tien Shan’ (known also as the ‘Nikolaev Line’). It comprises mafic to intermediate (monzodiorite, monzonite) and silicic (quartz monzonite, monzogranite and leucogranite‐alaskite) rocks, followed by the late mafic (monzodiorite‐porphyry to lamprophyre) dikes. Isotopic U‐Pb zircon dating of quartz monzonite and monzogranite indicates their Early Permian age (ca. 293 to 286 Ma). The rocks appear to have been produced by remelting of a partially crystallized (mush) magma batch at deeper levels, which is evident by the presence of zircon antecrysts dated at some 306 to 320 Ma. These geochronological data are consistent with a post‐collisional setting of the pluton that occurred after the cessation of subduction, which affected the Middle Tien Shan in the Late Palaeozoic. Geochemical signatures of the igneous rocks from the Molo‐Sarychat pluton correspond to high‐K calc‐alkaline to shoshonitic series intrusions emplaced in a post‐collisional setting. An initial shoshonitic magma was produced by a low‐degree partial melting of the metasomatically enriched upper mantle, with amphibole fractionation in a deep (lower crustal) magma chamber. In this evolution, a generation, under the influence of mantle‐supplied fluids and heat, granitic magmas in the crustal protolith can be suggested, with further mixing/mingling of the mantle‐derived mafic (shoshonitic) magma and mantle‐induced crustal granitic magma, followed by the magma fractionation and emplacement at shallower crustal levels. The skarn‐porphyry Mo‐Cu‐W(‐Au) mineralization associated with the Molo‐Sarychat pluton complements the group of similar deposits associated with high‐K calc‐alkaline to shoshonitic series intrusions in the Middle Tien Shan and globally. The characteristic Mo‐W‐Cu‐Au metal assemblage and the high endowment in W and particularly Mo can be related to the fertilization of subduction‐modified subcontinental mantle in these metals, and its subsequent involvement in the magma generation in post‐collisional setting. A certain role of crustal magma sources in the strong Mo endowment can be considered that would be consistent with some A‐type granitoid affinity of the igneous rocks. The Early Permian age of these high‐potassic intrusions supporting their post‐collisional emplacement is remarkably similar to the age of hydrothermal alteration assemblages, previously reported for the super‐large Kumtor Au deposit situated in a similar post‐collisional setting nearby.

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Section: Potential Metallogenic Implicationsmentioning

confidence: 79%