II ABSTRACT Mount Erebus has long been recognized to produce very similar seismic signatures associated with its Strombolian eruptions. decorrelation of the coda, accompanied by relative stability in the early seismogram. Using coda wave interferometry, this decorrelation was interpreted as a median change within the volcano. Closer examination of this data in this thesis shows that clipping du...

A long-standing goal of Mars environmental studies is to understand the role of water throughout its geologic history. The Mars Exploration Rover (MER) Opportunity has worked towards this goal by investigating bedrock exposures within craters in Meridiani Planum. Each crater provides an opportunity to test and refine models proposed for the formation of the Meridiani bedrock. The sulfate-rich b...