CSE SETI Institute Colloquium Series

March 29th, 2010

What clays can tell us about past climate at Mawrth Vallis, Mars

Nancy McKeown

Mawrth Vallis has one of the largest exposures of phyllosilicates on Mars. Originally observed by OMEGA, CRISM has refined the detections and allowed positive identification of several phyllosilicate minerals including nontronite, montmorillonite, and kaolinite, as well as hydrated silica, based on their distinct spectral characteristics. The textures and morphologies of these units have been characterized using HiRISE imagery. Nancy McKeown will discuss the identification and mapping of these phyllosilicates and their implications for past climate at Mawrth Vallis.

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One Response

  1. Allan says:

    Hi MattI would like to know if it would be posadsiadble for you to build a sound trigadger for me? I will be down at the cape for the last launch for a 3D docaduadmenadtary, and will have aecscs around the pad for one still camadera Nikon D3. If you have time to build it what would you charge?Thanks Doug