Evidence of water accelerating erosion might help with the search for life.
A dramatic, fresh impact crater on Mars dominates this image taken by the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter on Nov. 19, 2013.A new study attempts to find periods of more intense erosion onin hopes of understanding when water flowed on the world's surface. Water can carry larger pieces of rock into collisions, breaking the rocks faster, so accelerated erosion might be a signal of watery, and in turn potentially habitable, conditions.
"Our study determines the timing and rates of sediment erosion and accumulation over Mars' geologic history in a completely novel way, and for the first time quantifies a measure of the erodibility of each of the types of rocks we see on Mars’ surface," lead author Andrew Gunn, a lecturer in the Monash University school of Earth, atmosphere and environment, said in a university"We show that the abundance of sands blown by wind into craters on Mars' surface can be linked...
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