Abstract:

The research results about geodynamics were shown in 11 sessions partitioned by regions and tectonism in the 32nd International Geological Congress. Through completely overview, the research results include: the tectonic evolution of Tethyan domains and the detailed processes of their rift, close and modification at later stages, supercontinents and their origin in Earth’s history, deep seated tectonics and metamorphism in subduction-collision belts, flat subduction in the Andes and its response of crustal deformation and magmatism, microstructural influence and control on dynamic process, melting and the rheology of the crust and upper mantle, and their significance for geodynamics, structure and evolution of  oceanic lithosphere, tectonics and reactivity of shield area, stable continental region earthquakes, space geodesy and present plate motion etc. These research results fully represent that the study of geodynamics is characterized by multi-subject, multi-means(for example, paleomagnetism, superdeep borehole, geophysics, geodesy and GPS),multi-scale(macroscopic, microscopic) and  multi-stage, complete, integrative, timing, positioning and quantitative exploration, and progressively probes into the evolution and dynamics of the earth (mainly lithosphere).

Key words: geodynamics, Tethy, subduction-collision belt ;microstructure ;rheology, earthquake, lithosphere