HR: 0800h
AN: P11B-0117    [Abstracts]
TI: Europa: Geological activity and surface - subsurface exchange
AU: * Phillips, C B
EM: phillips@seti.org
AF: SETI Institute, 515 N. Whisman Rd., Mountain View, CA 94043
AU: Cowell, W
EM: will.cowell@gmail.com
AF: UCSD, 9500 Gilman Dr., La Jolla, CA 92093
AB: Jupiter's moon Europa has a geologically young surface, allowing the possibility of current, ongoing geological activity. We are searching the Galileo database for overlapping images taken during the 5-year mission, and are comparing images using an iterative coregistration technique to look for changes due to geological activity. We will also discuss methods by which such activity could occur on Europa. We are particularly interested in the ability of geological processes to bring surface material down into the subsurface, and to bring subsurface material up to the surface. We are continuing a survey of such processes, including endogenic tectonic and cryovolcanic activity, and exogenic processes such as gardening and impact cratering.
DE: 5422 Ices
DE: 5464 Remote sensing
DE: 5470 Surface materials and properties
DE: 5494 Instruments and techniques
DE: 6221 Europa
SC: Planetary Sciences [P]
MN: Fall Meeting 2005