gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2017-8-3-0263gtcrust-404Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSPETROGRAPHY AND MINERALOGY OF RETROGRADE METAPERIDOTITES FROM ALAG KHADNY ACCRETIONARY WEDGE (SW MONGOLIA): FLUID MODIFICATION IN SUPRASUBDUCTION ZONEPETROGRAPHY AND MINERALOGY OF RETROGRADE METAPERIDOTITES FROM ALAG KHADNY ACCRETIONARY WEDGE (SW MONGOLIA): FLUID MODIFICATION IN SUPRASUBDUCTION ZONEGornovaM. A.GornovaM. A.

Irkutsk

Irkutsk

EnkhbatD.EnkhbatD.

Ulaanbaatar

Ulaanbaatar

KarimovA. A.KarimovA. A.

Irkutsk

Irkutsk

BelyaevV. A.BelyaevV. A.

Irkutsk;

Taipei

Irkutsk;

Taipei

GerelO.GerelO.

Ulaanbaatar

Ulaanbaatar

JavkhlanO.JavkhlanO.

Ulaanbaatar

Ulaanbaatar

A.P. Vinogradov Institute of Geochemistry, Siberian Branch of RASРоссияA.P. Vinogradov Institute of Geochemistry, Siberian Branch of RASRussian FederationInstitute of Paleontology and Geology, Mongolian Academy of SciencesМонголияInstitute of Paleontology and Geology, Mongolian Academy of SciencesMongoliaA.P. Vinogradov Institute of Geochemistry, Siberian Branch of RAS; Institute of Earth Sciences, Academia SinicaРоссияA.P. Vinogradov Institute of Geochemistry, Siberian Branch of RAS; Institute of Earth Sciences, Academia SinicaRussian FederationMongolian University of Science and TechnologyМонголияMongolian University of Science and TechnologyMongolia20171110201783465469Copyright © Gornova M.A., Enkhbat D., Karimov A.A., Belyaev V.A., Gerel O., Javkhlan O., 20172017Gornova M.A., Enkhbat D., Karimov A.A., Belyaev V.A., Gerel O., Javkhlan O.Gornova M.A., Enkhbat D., Karimov A.A., Belyaev V.A., Gerel O., Javkhlan O.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/404

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.

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.

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The authors declare that there are no conflicts of interest present.