Broussolle, A. , Sun, M. , Schulmann, K. , Guy, A. , Aguilar, C. , Štípská, P. , Jiang, Y. , Yu, Y. and Xiao, W. 2019. Are the Chinese Altai “terranes” the result of juxtaposition of different crustal levels during Late Devonian and Permian orogenesis?. Gondwana Research. 66, 183–206.
DOI Google ScholarContrasting mechanisms of formation of the Pangea supercontinent: new insights into formation of continental crust
Since the late Proterozoic to Permian times accretionary systems developed at periphery of a palaeo-Pacific ocean. At the same time formed giant Central Asian Orogenic Belt (CAOB) being located inside the NE part of the Pangea supercontinent. This orogen thus reveals features of both peripheral and interior orogens. In this project it is proposed that the CAOB precursor evolved at the periphery of paleo-Pacific, was later transferred into the interior of the Pangean continental realm and finally bended and shortened between Siberian and North China cratonic jaws. Multidisciplinary approach is proposed to characterize final orogenic architecture of Mongolian tract of CAOB and define boundary conditions and timing of both accretionary and collisional cycles. An attempt is made to understand evolution and redistribution of orogenic lower crust during advancing and retreating subduction and subsequent oroclinal bending by geophysics and analogue/numerical modelling.
Period
-Registration number
17-17540SProvider
GAČRBudget
340 000 EURPrincipal investigators
Prof. Karel SchulmannProject publications
Jiang, Y. , Schulmann, K. , Sun, M. , Weinberg, R.F., Štípská, P. , Li, P.F., Zhang, J. , Chopin, F. , Wang, S. , Xia, X.P. and Xiao, W. 2019. Structural and Geochronological Constraints on Devonian Suprasubduction Tectonic Switching and Permian Collisional Dynamics in the Chinese Altai, Central Asia. Tectonics. 38, 253–280.
DOI Google ScholarAouizerat, A. , Xiao, W. , Schulmann, K. , Jeřábek, P. , Monie, P. , Zhou, J.-B. , Zhang, J. , Ao, S. , Li, R. , Li, Y. and Esmaeili, R. 2019. Structures, strain analyses, and 40Ar/39Ar ages of blueschist-bearing Heilongjiang Complex (NE China): Implications for the Mesozoic tectonic evolution of NE China. Geological Journal. 54, 716–745.
DOI Google ScholarBroussolle, A. , Aguilar, C. , Sun, M. , Schulmann, K. , Štípská, P. , Jiang, Y. , Yu, Y. , Xiao, W. , Wang, S. and Míková, J. 2018. Polycyclic Palaeozoic evolution of accretionary orogenic wedge in the southern Chinese Altai: Evidence from structural relationships and U–Pb geochronology. Lithos. 314-315, 400–424.
DOI Google ScholarJanoušek, 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.
DOI Google ScholarSoejono, I. , Čáp, P. , Míková, J. , Janoušek, V. , Burianek, D. and Schulmann, K. 2018. Early Palaeozoic sedimentary record and provenance of flysch sequences in the Hovd Zone (western Mongolia): Implications for the geodynamic evolution of the Altai accretionary wedge system. Gondwana Research. 64, 163–183.
DOI Google ScholarNguyen, 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.
DOI Google ScholarJiang, 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.
DOI Google Scholar