Age of felsic volcanism in the Selitkan zone of the Khingan-Okhotsk volcanoplutonic belt, Russian Far East

Дербеко, И. М.; Сорокин, А. А.; Сальникова, Е. Б.; Kotov, A. B.; Сорокин, А. П.; Yakovleva, S. Z.; Fedoseenko, A. M.; Plotkina, Yu. V.

doi:10.1134/s1028334x08010078

Cited by 15 publications

(8 citation statements)

References 3 publications

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“…According to U-Pb, Rb-Sr and 40 Ar/ 39 Ar data, the igneous complexes fall into a narrower interval 120-95 Ma (Agafonenko, 2001a(Agafonenko, , 2001bSorokin, 2006. The published age determinations of volcanic and subvolcanic com plexes of the Khingan-Okhotsk belt (Lebedev et al, 1997;Rasskazov et al, 2003;Sorokin et al, 2005;Derbeko et al, 2008aDerbeko et al, , 2008b fall into the same range. The age of the ore at the Tokur deposit is the closest to the U-Pb zircon age of 120 ± 5 Ma established for the Karaurak subvolcanic trachyrhyodacite intrusion (Fig.…”

Section: Discussionmentioning

confidence: 84%

40Ar/39Ar age of adularia from veins of the Tokur gold deposit, the Mongolian-Okhotsk Orogenic Belt, Russia

et al. 2011

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The 40 Ar/ 39 Ar age of the productive stage of the ore forming hydrothermal process at the large Tokur gold deposit is 122.4 ± 2.0 Ma. This estimate suggests a paragenetic relationship of this deposit with the nearly exposed Karaurak subvolcanic trachyrhyodacite intrusion, the U-Pb zircon age of which was pre viously estimated at 120 ± 5 Ma. The age of mineralization at the Tokur deposit is close to the time of forma tion of some other deposits in the Russian Far East localized in various structural units.

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Section: Discussionmentioning

confidence: 84%

40Ar/39Ar age of adularia from veins of the Tokur gold deposit, the Mongolian-Okhotsk Orogenic Belt, Russia

et al. 2011

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“…They are depleted in Ba and Sr. and are enriched in Rb, Th, Nb, Hf, and Zr. The age of the volcanites determined by the 40 Ar / 39 Ar method is 99-101 Myr [8,36], which corresponds to the alb.…”

Section: Third Stage: 101-99 Myrmentioning

confidence: 99%

Bureya-Jiamusi Superterrane: Tectonic and Geodynamic Processes in Late Mesozoic - Cenozoic

Дербеко¹

2018

Tectonics - Problems of Regional Settings

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Bureya-Jiamusi superterrane (BJS) is a component of the Amur plate. This is one of the most complex and controversial structures of the eastern Asia. The bulk of the "body" superterrane is located in China, where it is actively researched by the Chinese scientists. The northern border of the structure is directly on the territory of the Amur region and is defined by the boundary of the Mongol-Okhotsk orogenic belt. By Parfenov, the superterrane is bordered by the Paleozoic-early Mesozoic orogenic belts and the North China plate. But there are other ideas about the spatial location of the BJS. All the suggested geodynamic reconstructions of the studied region take into account the interdependence between North-Asian and China-Korea plates and plates of the Pacific basin oceanic crust. The suggested work attempts to show the dependence of the evolution of the Bureya-Jiamusi superterrane on the surrounding geological objects in the late Cretaceous-Cenozoic interval.

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“…At the length of the eastern union of the belt at about 1000 km this complexes are dislocated exclusively at its eastern margin and are observed not longer than 250 km from the border of the continent. Dew to the last precision material composition [8][9][10][11] late Mesozoic volcano-plutonic formations of the eastern unit of Mongol-Okhotsk orogenic belt is the oversubductional formations. Late Mesozoic volcano-plutonic formations of the eastern unit of Mongol-Okhotsk orogenic belt are presented by two volcano-plutonic complexes: Selitkan and Ezop-Jamalin.…”

Section: Late Mesozoic Volcano-plutonic Formationsmentioning

confidence: 99%

“…Late Mesozoic volcano-plutonic formations of the eastern unit of Mongol-Okhotsk orogenic belt are presented by two volcano-plutonic complexes: Selitkan and Ezop-Jamalin. The made research work [8][9][10][11] proves that the dislocation of the microelements in the data of the volcano-plutonic formations correlates with the scheme of their dislocation in the rocks of the subductional situations: enrichment with the large ion elements (K, Cs, Rb, Ba, Pb), LREE, combination with high-charged elements -(Nb, Ta, Zr, Hf) and HREE. Sr and Ti make an exception.…”

Section: Late Mesozoic Volcano-plutonic Formationsmentioning

confidence: 99%

The Region of Matching of Central-Asian Mobile Belt and Pacific Mobile Belt

Дербеко¹

2013

IJG

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Central Asian and Pacific mobile belts are the two geological superstructures of Eastern Asia. They keep many geological secrets. There is a region of the interaction of the structures in the frames of the margin ofEast Asia. The region is ambiguous. It is denominated in tectonic superposition or covering (interference) of the segments of the structures. The main goal of the research work is to establish the boundary line of the jointing of two superstructures. Here we show the role of the Mesozoic tectonic restructuring and magmatism in the interaction of the structures. The region of their jointing is the boundary line between Bureja-Jziamusy and Badzhal terrains. The boundary line in the frames of Mongol-Okhotsk orogenic belt is disputable. Geochronological and paleomagnetic data and chemical composition of the volcano-plutonic rocks of the eastern margin of Mongol-Okhotsk belt and of the structures of Central-Asian mobile belt were recently obtained. The data allow us to review the region of the joint of the two structures of easternAsia. It was suggested to draw the boundary line of the joint (in this case-interference) of Central Asian mobile belt and Pacific mobile belt in the frames of the eastern margin of Mongol-Okhotsk orogenic belt along the margin of the disappearance of late Mesozoic oversubductional volcano-plutonic complexes in the western direction. The structure of Bureja-Jziamusy superterrain was related to the structures of the Pacific mobile belt. The proposed model of the region of jointing of two East Asian superstructures enables us to reconsider the tectonic and geodynamical and metallogeny schemes of evolution of the Eastern margin ofAsia.

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Age of felsic volcanism in the Selitkan zone of the Khingan-Okhotsk volcanoplutonic belt, Russian Far East

Cited by 15 publications

References 3 publications

40Ar/39Ar age of adularia from veins of the Tokur gold deposit, the Mongolian-Okhotsk Orogenic Belt, Russia

40Ar/39Ar age of adularia from veins of the Tokur gold deposit, the Mongolian-Okhotsk Orogenic Belt, Russia

Bureya-Jiamusi Superterrane: Tectonic and Geodynamic Processes in Late Mesozoic - Cenozoic

The Region of Matching of Central-Asian Mobile Belt and Pacific Mobile Belt

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