Tag Archives: tsunamis

Did impact-generated tsunamis make ‘thumbprint terrain’?

Posted on March 29, 2017 by rburnham

Thirty years ago, during a 3-month long visit to the U.S. Geological Survey in Arizona, Francois Costard saw Viking orbiter images of Mars’s northern plains showing strange curving features along the boundary between the Martian northern and southern hemispheres. Costard, … Continue reading →

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Geomorphology of potential tsunami deposits

Posted on December 1, 2016 by rburnham

Planetary Geomorphology Image of the Month, December 1, 2016: Alexis Rodriguez (Planetary Science Institute). The Martian northern lowlands are thought to currently be extensively covered by an ice-rich deposit, interpreted by some researchers to be the residue of an ancient … Continue reading →

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Mega-tsunamis likely altered Mars landscape

Posted on May 20, 2016 by rburnham

The geologic shape of what were once shorelines through Mars’ northern plains convinces scientists that two large meteorites – hitting the planet millions of years apart – triggered a pair of mega-tsunamis. These gigantic waves forever scarred the Martian landscape … Continue reading →

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