CLARIFICATION
OF TECTONIC AND GEODYNAMIC MODELS
OF THE
ALPINE-HIMALAYAN-INDONESIAN MOBILE BELT
EXTREMITIES
BASED ON MATCHING VIEWS ABOUT THE «WIDE» AND
«NARROW»
PALEOOCEAN TETHYS
© 2020 V.I. Shevchenko, A.A. Lukk*, V.G. Leonova
Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
* e-mail: lukk@ifz.ru
Abstract. Based on the available geological and geodetic data, it is established that the structures of the Alpine-Himalayan-Indonesian mobile belt are oroclinally (horseshoe-shaped) closed at its Western and Eastern extremities. In the West, from the Atlantic ocean, this closure is represented as the Bet-RIF arc, and in the East, from the Pacific ocean, as the Band and Mindanao arcs. These closures mean that there is no structural connection between the mobile belt under discussion and the Atlantic and Pacific oceans, respectively. Thus, the existing pleittectonic reconstructions, according to which the ancient paleoocean Tethys was a wide Bay of the Pacific ocean, which (Bay) in the West was connected to the Atlantic ocean «Wide Tethys») not true. The Alpine-Himalayan-Indonesian mobile belt has to be considered as an epigeosynclinal rather than an epioceanic structure.
About the authors
SHEVCHENKO Vladimir Ivanovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: shevch@ifz.ru
LUKK Albert Arturovich – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: lukk@ifz.ru
LEONOVA Vera Georgievna – Schmidt Institute of Physics of the Earth, Russian Academy of Sciences. Russia, 123242, Moscow, Bolshaya Gruzinskaya st., 10-1. E-mail: lukk@ifz.ru
Cite this article as: Shevchenko V.I., Lukk A.A., Leonova V.G. Clarification of tectonic and geodynamic models of the Alpine-Himalayan-Indonesian mobile belt extremities based on matching views about the «wide» and «narrow» paleoocean Tethys, Geofizicheskie Protsessy i Biosfera (Geophysical Processes and Biosphere), 2020, vol. 19, no. 4, pp. 27–36 (in Russian). https://doi.org/10.21455/gpb2020.4-3
English version: Izvestiya, Atmospheric and Oceanic Physics, 2020, vol. 56, iss. 11. ISSN: 0001-4338 (Print), 1555-628X (Online). https://link.springer.com/journal/volumesAndIssues/11485