Soldner, J. , Štípská, P. , Schulmann, K. , Yuan, C. , Anczkiewicz, R. , Sala, D. , Jiang, Y. , Zhang, Y. and Wang, X. 2020. Coupling of P–T–t–D histories of eclogite and metagreywacke—Insights to late Ordovician–Silurian crustal folding events recorded in the Beishan Orogen (NW China). Journal of Metamorphic Geology. 38, 555–591.
DOI Google ScholarCrustal growth and construction of continental crust exemplified by Central Asian Orogenic Belt
On the modern Earth, continental crust is created mainly at subduction zones. Here, release of aqueous fluid from dehydrating oceanic crust causes melting in the mantle wedge and generates the calc-alkaline magmas that evolve into granitoid continental crust. This project aims to understand crustal growth and possible crustal construction mechanisms, using the Mongolian and Chinese tract of the Central Asian Orogenic Belt (CAOB) as an example. The main questions raised here are: What were the cause, rate and timing of continental growth in the CAOB? Was it crustal growth only process, continental construction or combination of both? What is the deep structure of the CAOB crust and can be the accretionary process imaged by geophysical methods?
Period
-Registration number
P210/12/2205Provider
GAČRBudget
258 000 EURPrincipal investigators
Prof. Karel SchulmannTeam members
Dr. Ondrej LexaProject publications
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.
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 ScholarSoldner, J. , Oliot, E. , Schulmann, K. , Štípská, P. , Kusbach, V. and Anczkiewicz, R. 2017. Metamorphic P–T–t–d evolution of (U)HP metabasites from the South Tianshan accretionary complex (NW China) — Implications for rock deformation during exhumation in a subduction channel. Gondwana Research. 47, 161–187.
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 ScholarJiang, 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.
DOI Google ScholarHanžl, 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.
DOI Google ScholarBurianek, 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.
DOI Google Scholar