Authors
Zheng-Xiang Li, Yebo Liu, Richard Ernst
Publication date
2023/2/22
Source
EGU23
Issue
EGU23-10404
Publisher
Copernicus Meetings
Description
An advanced understanding of how tectonic plates have moved since deep time is essential for understanding how Earth's geodynamic system has evolved and interacted with the plate tectonic system, ie, the longstanding question of what" drives" plate tectonics. In this work, we take advantage of the rapidly improving database and knowledge about the Precambrian world, and the conceptual breakthroughs both regarding the presence of a supercontinent cycle and possible dynamic coupling between the supercontinent cycle and mantle dynamics, to establish a full-plate global reconstruction back to 2000 Ma. We utilise a variety of global geotectonic databases to constrain our reconstruction, and use palaeomagnetically recorded true polar wander events and global plume records to help evaluate competing geodynamic models regarding the origin and evolution of first-order mantle structures, and provide new …