Crustal rheology and seismicity in the eastern Central Asian Orogenic Belt and its tectonic implications ...

• Main Authors: Yang, Peng, Liu, Shaowen
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Okhotsk; Pacific; okhotsk sea; Siberia
• Online Access: https://dx.doi.org/10.57757/iugg23-0336; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016149

<!--!introduction!--> The Central Asian Orogenic Belt (CAOB), located between the Siberia and Baltica cratons to the north, and the Tarim and North China cratons to the south, is a large and long-lived accretionary orogen that extends from the Urals in the west through Kazakhstan, Magnolia, China to the Okhotsk Sea in Russia, with the ocean closing during Neoproterozoic to the Late Phanerozoic. Quaternary volcanoes and earthquakes are widespread in the northeastern China of eastern CAOB, along with high heat flow background, obviously affected by the subduction of the Pacific slab; however, the range and manner of this subduction effects still remain elusive. Seismogenic depths in northeastern China show that, bounded by the Great Xing’an Range, the seismicity in the west is diffusely distributed in the crust, with a bimodal pattern as the upper and middle/lower crust (15-25 km); while for the east area, the seismicity only occurs in the upper crust (~15 km). Rheological modeling demonstrates, only the ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...