River Incision Dominated by Fault Block
Автор: University of Colorado Boulder
Загружено: 2011-07-28
Просмотров: 584
Описание:
This movie shows a simulation of a pair of normal-fault blocks separated by a vertical fault. The lower left edge is fixed through time, and represents a shallow shelf just below sea level. The inner block of the landscape rises at a steady rate, while the outer block subsides. Initially, the relief and erosion rate are small, and the subsiding basin is underfilled. Notice the progradation of a fan-delta complex. As relief and sediment flux increase, the fan deltas reach the shallow shelf and the basin becomes filled (or "over-filled" , meaning that there is more than enough sediment to keep filling the basin as it continues to subside).
Assistant Professor of Geological Sciences, Fellow of CIRES, Greg Tucker,
Univ. Colorado Boulder
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