Extension and compression lead to the modification and growth of continental crust, and is reflected in deformation, seismogenesis, exhumation, and magmatism. The expression of crustal modification depends on the dominant tectonic process, with compressional regions often defined by shortening and evolved magmatism, and possible deeper dynamic processes like delamination, whereas regions in extension characterized by thin lithosphere and basin formation with or without mafic magmatism. With increasing geophysical instrumentation such as seismic, geodetic, and magnetotelluric stations, the geophysical constraints of the crust in these different tectonic regimes have been improved dramatically. These advances have led to better understanding of crustal modification at active plate margins, such as along the India-Eurasia collision zone, the Andes, and the Basin and Range in Western US. The session invites abstracts from tectonic, geological, geophysical, and geochemical fields to obtain a synoptic view of the evolution of continental crust in extended and compressed terrains.

• S - Seismology

• AOGS: Asia Oceania Geosciences Society -
• EGU: European Geosciences Union -
• GS: Geochemical Society -
• GSA: Geological Society of America -