Winter 2014

January 10, 2014

Michael Busch, SETI Institute

Title: Near-Earth Asteroids, Radar, and Space Missions


January 17, 2014

Michael Manga, University of California, Berkeley

Title: Earthquakes and water (and why the LUSI mud eruption was not caused by an earthquake)


January 24, 2014

Dawn Sumner, University of California, Davis

Title: Analyses of a Mudstone on Mars: Deposition, Alteration, and Exposure Histories

The Mars Science Laboratory team had the Curiosity rover drill its first two samples into distal deposits of an alluvial fan.  The samples have a basaltic composition, but include clay minerals and x-ray amorphous phases in addition to igneous minerals.  I will present the team's interpretations of the environmental context for deposition and the history of water-rock interactions based on the chemistry and texture of the mudstone and associated sandstones.  I will also discuss implications for provenance and exposure ages based on noble gas analyses.


January 31, 2014

Shangfei Liu, University of California, Santa Cruz

Title: Catastrophic Events at the Advanced Stage of Planet Formation: Applications to the Diverse Internal Structures of Planets


February 7, 2014

Marco Calo, University of California, Berkeley

Title: Induced Seismicity and Geothermal Fields. Constraints from 4D seismic tomography on the fault-fluid interaction


February 14, 2014

Vincent Allègre, University of California, Santa Cruz

Title: Some experimental and field applications of electrical methods to near-surface hydrological problems


February 21, 2014

Jean-Philippe Avouac, Caltech

Title: Faults: better creepy than sticky!


February 28, 2014

Thomas Heaton, Caltech

Title: Implications of Strong-Rate-Weakening Friction for the Length-Scale Dependence of the Strength of the Crust; Why Earthquakes Are so Gentle


March 7, 2014

Sarah Horst, University of Colorado

Title: Understanding the Formation and Composition of Planetary Atmospheric Hazes


March 14, 2014

Tim Lyons, University of California, Riverside

Title: The Rise of Oxygen in Earth's Early Ocean and Atmosphere