Lopes et al. Icarus (in press) "Distribution and interplay of geologic processes on titan from Cassini radar data"
Analysis of RADAR data from Ta - T30 flybys.
Summary from Insider's Cassini: <a href="http://saturn.jpl.nasa.gov/news/cassiniinsider/insider20100119/#" target="_blank">http://saturn.jpl.nasa.gov/news/cassiniins...sider20100119/#</a>
Here is the source article (freely available): http://www.gps.caltech.edu/~mitri/articoli/lopes_09.pdf
(Whoo-hoo! Sotra Facula is considered cryovolcanic!)