Mathematics – Logic
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..635c&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.635
Mathematics
Logic
Scientific paper
Global structural mapping of high-resolution Cassini images of Enceladus reveals a richly varied surface, most notably three main regions of deformation each containing multiple structural units. In addition to the well known "south polar terrain" (SPT), there are two other large regions of deformation that we term "leading hemisphere terrain" (LHT) and "trailing hemisphere terrain" (THT). Each of these three terrains includes a circumferential belt that encloses one or more other structurally deformed units. In addition to this similarity, all three terrains have comparable areal extent, with diameters ranging from 375-475 km. The gross similarities in shape and dimension of the three tectonized terrains suggest similar formational processes, plausibly related to broad loading of a thin elastic shell. A viable scenario is that each region deformed above a largescale region of warm upwelling ice, with subsequent downwarping triggered by cooling and/or subsurface melting. However, differences in morphological detail suggest the detailed evolution of each tectonized terrain has been different.
Crow-Willard Emma
Pappalardo Robert T.
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