Dr. Ondrej Lexa

Aguilar, C. , Štípská, P. , Schulmann, K. , Kylander-Clark, A. , Lexa, O. , Sukhbaatar, T. , Peřestý, V. , Jiang, Y. and Hanžl, P. 2024. Carboniferous Barrovian to Permian Buchan-type metamorphic cycles in the Mongolian Altai Zone: Implication for pressure cycles in accretionary orogens. Journal of Metamorphic Geology. 42, 979–1033.

Sukhbaatar, T. , Schulmann, K. , Janoušek, V. , Soejono, I. , Lexa, O. , Míková, J. , Hora, J. , Song, D. , Xiao, W. , Poujol, M. and 2024. Magmatic and sedimentological arguments for an Ediacaran active margin in the Bayankhongor Zone in western Mongolia, Central Asian Orogenic Belt. Gondwana Research. 134, 385–409.

Schulmann, K. , Maierová, P. , Jeřábek, P. , Lexa, O. , Ulrich, S. , Hobbs, B. and Ord, A. 2023. Deformation mechanisms and rheology inversion of jointly deformed marble and quartzite in natural thermal gradient. Journal of Structural Geology. 104892.

Miao, Y. , Zhang, J. , Schulmann, K. , Lexa, O. , Jeřábek, P. , Sun, M. , Jiang, Y. and Zhang, S. 2023. Polyphase deformation of staurolite-bearing metapelite in the Chinese Altai: Recording a devonian-permian tectonic regime switch in the southwestern central asian orogenic belt. Journal of Structural Geology. 104917.

Schulmann, K. , Edel, J.B., Lexa, O. , Xiao, W. , Třebínová, D. , Spikings, R. , Schaltegger, U. , Derkowski, A. and Szczerba, M. 2023. Paleomagnetic, tectonic and geochronological constraints for Permian–Triassic oroclinal bending of the Mongolian collage. National Science Review. 10, nwac184.

Sukhbaatar, T. , Lexa, O. , Schulmann, K. , Aguilar, C. , Štípská, P. , Wong, J. , Jiang, Y. , Míková, J. and Zhao, D. 2022. Paleozoic geodynamics and architecture of the southern part of the Mongolian Altai Zone. Tectonics. 41, e2022TC007498.

Schulmann, K. , Edel, J.B., Lexa, O. , Xiao, W. , Třebínová, D. , Spikings, R. , Schaltegger, U. , Derkowski, A. and Szczerba, M. 2022. Paleomagnetic, tectonic and geochronological constraints for Permian-Triassic oroclinal bending of the Mongolian collage. National Science Review.

Krýza, O. , Lexa, O. , Schulmann, K. , Guy, A. , Gapais, D. , Cosgrove, J. and Xiao, W. 2021. Oroclinal buckling and associated lithospheric-scale material flow – insights from physical modelling: Implication for the Mongol-Hingan orocline. Tectonophysics. 800, 228712.

Maierová, P. , Schulmann, K. , Štípská, P. , Gerya, T. and Lexa, O. 2021. Trans-lithospheric diapirism explains the presence of ultra-high pressure rocks in the European Variscides. Communications Earth & Environment. 2, 1–9.

Guy, A. , Schulmann, K. , Soejono, I. , Holzrichter, N. , Lexa, O. and Munschy, M. 2021. Structures and geodynamics of the Mongolian tract of the Central Asian Orogenic Belt constrained by potential field analyses. Gondwana Research.

Soejono, I. , Peřestý, V. , Schulmann, K. , Čopjaková, R. , Svojtka, M. , Štípská, P. , Burianek, D. , Janoušek, V. and Lexa, O. 2021. Structural, metamorphic and geochronological constraints on Palaeozoic multi-stage geodynamic evolution of the Altai accretionary wedge system (Hovd Zone, western Mongolia). Lithos. 396, 106204.

Deiller, P. , Štípská, P. , Ulrich, M. , Schulmann, K. , Collett, S. , Peřestý, V. , Hacker, B. , Kylander-Clark, A. , Whitechurch, H. and Lexa, O. 2021. Eclogite subduction wedge intruded by arc-type magma: The earliest record of Variscan arc in the Bohemian Massif. Gondwana Research. 99, 220–246.

Hanžl, P. , Guy, A. , Battushig, A. and Lexa, O. 2020. Geology of the Gobi and Mongol Altai junction enhanced by gravity analysis: a key for understanding of the Mongolian Altaides.

Štípská, P. , Hasalová, P. , Jeřábek, P. , Lexa, O. , Lardeaux, J.-M. , Sun, M. and Cosgrove, J. 2020. Thermal and mechanical evolution of collisional and accretionary orogens: a volume in honour of Karel Schulmann—an introduction. 109, 1099–1103.

Krýza, O. , Závada, P. and Lexa, O. 2019. Advanced strain and mass transfer analysis in crustal-scale oroclinal buckling and detachment folding analogue models. Tectonophysics. 764, 88–109.

Janoušek, V. , Jiang, Y. , Burianek, D. , Schulmann, K. , Hanžl, P. , Soejono, I. , Kröner, A. , Altanbaatar, B. , Erban, V. , Lexa, O. , Ganchuluun, T. and Košler, J. 2018. Cambrian–Ordovician magmatism of the Ikh-Mongol Arc System exemplified by the Khantaishir Magmatic Complex (Lake Zone, south–central Mongolia). Gondwana Research. 54, 122–149.

Collett, S. , Štípská, P. , Schulmann, K. , Peřestý, V. , Soldner, J. , Anczkiewicz, R. , Lexa, O. and Kylander-Clark, A. 2018. Combined Lu-Hf and Sm-Nd geochronology of the Mariánské Lázně Complex: New constraints on the timing of eclogite- and granulite-facies metamorphism. Lithos. 304–307, 74–94.

Nguyen, H. , Hanžl, P. , Janoušek, V. , Schulmann, K. , Ulrich, M. , Jiang, Y. , Lexa, O. , Altanbaatar, B. and Deiller, P. 2018. Geochemistry and geochronology of Mississippian volcanic rocks from SW Mongolia: Implications for terrane subdivision and magmatic arc activity in the Trans-Altai Zone. Journal of Asian Earth Sciences. 164, 322–343.

Edel, J.B., Schulmann, K. , Lexa, O. and Lardeaux, J.-M. 2018. Late Palaeozoic palaeomagnetic and tectonic constraints for amalgamation of Pangea supercontinent in the European Variscan belt. Earth-Science Reviews. 177, 589–612.

Lehmann, J. , Schulmann, K. , Lexa, O. , Závada, P. , Štípská, P. , Hasalová, P. , Belyanin, G. and Corsini, M. 2017. Detachment folding of partially molten crust in accretionary orogens: A new magma-enhanced vertical mass and heat transfer mechanism. Lithosphere. 9, 889.

Burianek, D. , Schulmann, K. , Hrdličková, K. , Hanzl, P. , Janoušek, V. , Gerdes, A. and Lexa, O. 2017. Geochemical and geochronological constraints on distinct Early-Neoproterozoic and Cambrian accretionary events along southern margin of the Baydrag Continent in western Mongolia. Gondwana Research. 47, 200–227.

Hanžl, P. , Krejčí, Z. , Altanbaatar, B. , Lexa, O. , Burianek, D. , Janoušek, V. , Schulmann, K. , Jiang, Y. and Hrdličková, K. 2017. Geology of the Gobi Altai and Tseel terranes in the central part of the Sagsai River Watershed, SE Mongolian Altai. Journal of Maps. 13, 270–275.

Peřestý, V. , Lexa, O. , Holder, R. , Jeřábek, P. , Racek, M. , Štípská, P. , Schulmann, K. and Hacker, B. 2017. Metamorphic inheritance of Rheic passive margin evolution and its early-Variscan overprint in the Teplá-Barrandian Unit, Bohemian Massif. Journal of Metamorphic Geology. 35, 327–355.

Jiang, Y. , Schulmann, K. , Kröner, A. , Sun, M. , Lexa, O. , Janoušek, V. , Burianek, D. , Yuan, C. and Hanžl, P. 2017. Neoproterozoic-Early Paleozoic Peri-Pacific Accretionary Evolution of the Mongolian Collage System: Insights From Geochemical and U-Pb Zircon Data From the Ordovician Sedimentary Wedge in the Mongolian Altai Authors. Tectonics. 36, 2305–2331.

Racek, M. , Lexa, O. , Schulmann, K. , Corsini, M. , Štípská, P. and Maierová, P. 2017. Re-evaluation of polyphase kinematic and 40Ar/39Ar cooling history of Moldanubian hot nappe at the eastern margin of the Bohemian Massif. International Journal of Earth Sciences. 106, 397–420.

Maierová, P. , Lexa, O. , Jeřábek, P. , Schulmann, K. and Franěk, J. 2017. Computational study of deformation mechanisms and grain size evolution in granulites–Implications for the rheology of the lower crust. Earth and Planetary Science Letters. 466, 91–102.

Jiang, Y. , Schulmann, K. , Sun, M. , Štípská, P. , Guy, A. , Janoušek, V. , Lexa, O. and Yuan, C. 2016. Anatexis of accretionary wedge, Pacific-type magmatism, and formation of vertically stratified continental crust in the Altai Orogenic Belt. Tectonics. 35, 3095–3118.

Maierová, P. , Schulmann, K. , Lexa, O. , Guillot, S. , Štípská, P. , Janoušek, V. and Čadek, O. 2016. European Variscan orogenic evolution as an analogue of Tibetan-Himalayan orogen: Insights from petrology and numerical modeling. Tectonics. 35, 1760–1780.

Hanžl, P. , Schulmann, K. , Janoušek, V. , Lexa, O. , Hrdličková, K. , Jiang, Y. , Burianek, D. , Altanbaatar, B. , Ganchuluun, T. and Erban, V. 2016. Making continental crust: origin of Devonian orthogneisses from SE Mongolian Altai. Journal of GEOsciences. 61, 25–50.

Burianek, D. , Janoušek, V. , Hanžl, P. , Jiang, Y. , Schulmann, K. , Lexa, O. and Altanbaatar, B. 2016. Petrogenesis of the Late Carboniferous Sagsai Pluton in the SE Mongolian Altai. Journal of GEOsciences. 61, 67–92.

Závada, P. , Desbois, G. , Urai, J. , Schulmann, K. , Rahmati, M. , Lexa, O. and Wollenberg, U. 2015. Impact of solid second phases on deformation mechanisms of naturally deformed salt rocks (Kuh-e-Namak, Dashti, Iran) and rheological stratification of the Hormuz Salt Formation. Journal of Structural Geology. 74, 117–144.

Edel, J.B., Schulmann, K. , Lexa, O. , Diraison, M. and Géraud, Y. 2015. Permian clockwise rotations of the Ebro and Corso-Sardinian blocks during Iberian–Armorican oroclinal bending: Preliminary paleomagnetic data from the Catalan Coastal Range (NE Spain). Tectonophysics. 657, 172–186.

Broussolle, A. , Štípská, P. , Lehmann, J. , Schulmann, K. , Hacker, B. , Holder, R. , Kylander-Clark, A. , Hanzl, P. , Racek, M. , Hasalová, P. , Lexa, O. , Hrdličková, K. and Burianek, D. 2015. P-T-t-D record of crustal-scale horizontal flow and magma assisted doming in the SW Mongolian Altai. Journal of Metamorphic Geology. 359–383.

Guy, A. , Schulmann, K. , Janoušek, V. , Štípská, P. , Armstrong, R. , Belousova, E. , Dolgopolova, A. , Seltmann, R. , Lexa, O. , Jiang, Y. and Hanzl, P. 2015. Geophysical and geochemical nature of relaminated arc-derived lower crust underneath oceanic domain in southern Mongolia. Tectonics.

Schulmann, K. , Lexa, O. , Janoušek, V. , Lardeaux, J.-M. and Edel, J.B. 2014. Anatomy of a diffuse cryptic suture zone: An example from the Bohemian Massif, European Variscides. Geology.

Maierová, P. , Lexa, O. , Schulmann, K. and Štípská, P. 2014. Contrasting tectono-metamorphic evolution of orogenic lower crust in the Bohemian Massif: A numerical model. Gondwana Research.

Guy, A. , Schulmann, K. , Munschy, M. , Miehe, J.-M. , Edel, J.B. and Lexa, O. 2014. Geophysical constraints for terrane boundaries in southern Mongolia. Journal of Geophysical Research. 119, 7966–7991.

Štípská, P. , Powell, R. , Racek, M. and Lexa, O. 2014. Intermediate granulite produced by transformation of eclogite at a felsic granulite contact, in Blanský les, Bohemian Massif. Journal of Metamorphic Geology. 32, 347–370.

Guy, A. , Schulmann, K. , Clauer, N. , Hasalová, P. , Seltmann, R. , Armstrong, R. , Lexa, O. and Benedicto, A. 2014. Late Paleozoic-Mesozoic tectonic evolution of the Trans-Altai and South Gobi Zones in southern Mongolia based on structural and geochronological data. Gondwana Research. 25, 309–337.

Oliot, E. , Goncalves, P. , Schulmann, K. , Marquer, D. and Lexa, O. 2014. Mid-crustal shear zone formation in granitic rocks: Constraints from quantitative textural and crystallographic preferred orientations analyses. Tectonophysics. 612, 63–80.

Lehmann, J. , Schulmann, K. , Edel, J.B., Ježek, J. , Hrouda, F. , Lexa, O. and Chopin, F. 2013. Structural and anisotropy of magnetic susceptibility records of granitoid sheets emplacement during growth of a continental gneiss dome (Central Sudetes, European Variscan Belt). Tectonics. 32, 797–820.

Jeřábek, P. , Lexa, O. , Schulmann, K. and Plašienka, D. 2012. Inverse ductile thinning via lower crustal flow and fold-induced doming in the West Carpathian Eo-Alpine collisional wedge. Tectonics. 31, TC5002.

Štípská, P. , Chopin, F. , Skrzypek, E. , Schulmann, K. , Pitra, P. , Lexa, O. , Martelat, J.-E. , Bollinger, C. and Žáčková, E. 2012. The juxtaposition of eclogite and mid-crustal rocks in the Orlica-Snieznik Dome, Bohemian Massif. Journal of Metamorphic Geology. 30, 213–234.

Chopin, F. , Schulmann, K. , Štípská, P. , Martelat, J.-E. , Pitra, P. , Lexa, O. and Petri, B. 2012. Microstructural and metamorphic evolution of a high-pressure granitic orthogneiss during continental subduction (Orlica-Snieznik dome, Bohemian Massif). Journal of Metamorphic Geology. 30, 347–376.

Maierová, P. , Čadek, O. , Lexa, O. and Schulmann, K. 2012. A numerical model of exhumation of the orogenic lower crust in the Bohemian Massif during the Variscan orogeny. Studia Geophysica et Geodaetica. 56, 595–619.

Chopin, F. , Schulmann, K. , Skrzypek, E. , Lehmann, J. , Dujardin, J.R., Martelat, J.-E. , Lexa, O. , Corsini, M. , Edel, J.B., Štípská, P. and Pitra, P. 2012. Crustal influx, indentation, ductile thinning and gravity redistribution in a continental wedge: Building a Moldanubian mantled gneiss dome with underthrust Saxothuringian material (European Variscan belt). Tectonics. 31, TC1013.