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Modeling floods that formed canyons on Earth and Mars

(University of Massachusetts at Amherst) Geomorphologists who study Earth's surface features and processes that formed them have long been interested in how floods, in particular catastrophic outbursts that occur when a glacial lake ice dam bursts, can change a planet's surface, not only on Earth but on Mars. Now geoscience researchers Isaac Larsen at UMass Amherst and Michael Lamb at CalTech propose and test a new model of canyon-forming floods suggestint that deep canyons can be formed in bedrock by significantly less water than previously thought.
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