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Геодинамика и тектонофизика

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PETROGRAPHY AND MINERALOGY OF RETROGRADE METAPERIDOTITES FROM ALAG KHADNY ACCRETIONARY WEDGE (SW MONGOLIA): FLUID MODIFICATION IN SUPRASUBDUCTION ZONE

https://doi.org/10.5800/GT-2017-8-3-0263

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Аннотация

The Main Mongolian Lineament (MML) separates northern “Caledonian” tectonic province from southern “Hercynian” in SW part of Mongolia of the Central Asian Orogenic Belt (CAOB). The position of Eastern part of MML is widely discussed at recent time, since, this is an important for reconstruction of geodynamic evolution of this region. Some researchers suggest that ophiolite from the Erdene Uul and Maykhan Tsakhir Uul mountain ranges are Eastern part of an ophiolitic nappe system thrust northwards over the Dzabkhan-Baydrag continent, namely the Khantaishir and the Dariv ophiolites [Štípská et al., 2010; Buriánek et al., 2017]. Others have a different view, they suggest that investigated ophiolites refers to Gobi-Altai ophiolite system (523±5 – 518±6 Ma), which likely formed in front of the Gobi Altai microcontinent by initiation of a new southdipping subduction zone following arc–microcontinent collision in Northwest Mongolia [Jian et al., 2014]. However, ophiolites of this critical region of Mongolian the CAOB have not been investigated in detail.

Об авторах

M. A. Gornova
A.P. Vinogradov Institute of Geochemistry, Siberian Branch of RAS
Россия
Irkutsk


D. Enkhbat
Institute of Paleontology and Geology, Mongolian Academy of Sciences
Монголия
Ulaanbaatar


A. A. Karimov
A.P. Vinogradov Institute of Geochemistry, Siberian Branch of RAS
Россия
Irkutsk


V. A. Belyaev
A.P. Vinogradov Institute of Geochemistry, Siberian Branch of RAS; Institute of Earth Sciences, Academia Sinica
Россия

Irkutsk;

Taipei



O. Gerel
Mongolian University of Science and Technology
Монголия
Ulaanbaatar


O. Javkhlan
Mongolian University of Science and Technology
Монголия
Ulaanbaatar


Список литературы

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Для цитирования:


Gornova M.A., Enkhbat D., Karimov A.A., Belyaev V.A., Gerel O., Javkhlan O. PETROGRAPHY AND MINERALOGY OF RETROGRADE METAPERIDOTITES FROM ALAG KHADNY ACCRETIONARY WEDGE (SW MONGOLIA): FLUID MODIFICATION IN SUPRASUBDUCTION ZONE. Геодинамика и тектонофизика. 2017;8(3):465-469. https://doi.org/10.5800/GT-2017-8-3-0263

For citation:


Gornova M.A., Enkhbat D., Karimov A.A., Belyaev V.A., Gerel O., Javkhlan O. PETROGRAPHY AND MINERALOGY OF RETROGRADE METAPERIDOTITES FROM ALAG KHADNY ACCRETIONARY WEDGE (SW MONGOLIA): FLUID MODIFICATION IN SUPRASUBDUCTION ZONE. Geodynamics & Tectonophysics. 2017;8(3):465-469. https://doi.org/10.5800/GT-2017-8-3-0263

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