Lower crustal flow refers to the movement of rocks in the lower part of the Earth's crust, typically occurring over geological timescales. This process is significant in the context of tectonics and geomorphology, as it plays a role in continental dynamics, mountain building, and the formation of various geological features. The lower crust is primarily composed of crystalline rocks, which, when subjected to high temperatures and pressures, can behave like viscoelastic materials.
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