High Resolution Imaging Science Experiment (HiRISE) images of volcanic terrains from the first 6 months of the Mars Reconnaissance Orbiter Primary Science Phase

摘要: [1] In the first 6 months of Mars Reconnaissance Orbiter's Primary Science Phase, High Resolution Imaging Experiment (HiRISE) camera has returned images sampling diversity volcanic terrains on Mars. While many these features were noted in earlier imaging, they are now seen with unprecedented clarity. We find that some vents produced predominantly effusive products while others generated mostly pyroclastics. Flood lavas emplaced both turbulent and gentle eruptions, producing roofed channels inflation features. However, areas too heavily mantled to allow meter-scale be discerned. In particular, major edifices extensively mantled, though it is possible mantle pyroclastic material rather than atmospheric dust. Support imaging by Context Imager (CTX) topographic information derived from stereo invaluable interpreting HiRISE data.