Stanford University

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north america from space

Suzanne Smrekar, NASA-JPL , CIT, - A Once and Future Earth? Geodynamic Lessons from Venus

Thursday, Feb 11, 2021 12:00 PM
Where:  Passcode: 083990
General Public
Geophysics Department

Suzanne Smrekar

NASA-JPL , California Institute of Technology, Pasadena

A Once and Future Earth? Geodynamic Lessons from Venus

Venus is often referred to Earth’s Twin due to its similar size, density, and distance to the sun. Its intense greenhouse atmosphere creates a parched surface that acts as a cautionary climate tale. It also creates a hot lithosphere, possibly similar to that on early Earth. Venus is the only other body besides Earth that may have analogs of ‘continents’, present day geologic activity, and subduction – but no plate tectonics. Studying these processes on another body can provide insights into the conditions needed to produce subduction, the first step in plate tectonics. This talk discusses new research on the evidence for present day volcanism, subduction, and variable lithospheric thickness and implications for geodynamic and habitability of non-plate tectonic planets.  Passcode: 083990            


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