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The persistence of waterfalls in fractured rock
persistence of waterfalls fractured rock
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2014/4/8
Although the upstream translation of waterfalls is often thought to occur by undercutting of resistant strata, collapse,and headwall retreat (e.g., Niagara Falls),many propagating waterfalls maintain ...
Can springs cut canyons into rock?
springs canyons rock
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2014/4/8
Amphitheater-headed valleys on Earth and Mars are often assumed to result from erosion by emerging spring water (i.e., seepage erosion or groundwater sapping) rather than by surface runoff. The origin...