Grooved bands on Enceladus: morphology and implications.
Giese, B. and Neukum, G. and Helfenstein, P. (2009) Grooved bands on Enceladus: morphology and implications. Icy Satellites of the Saturnian System, 29 June - 30 June 2009, London, UK.
|PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader|
Official URL: http://www.cps.ucl.ac.uk/meetings/icy/
Enceladus has undergone substantial resurfacing during its evolution. Among other features indicative of resurfacing there are 10-15 km wide grooved bands, as Cassini images show (Fig. 1a). Here, we report on pinch and swell topography across one of the bands (Fig. 1b) and similarities to the morphology of grooved bands on Ganymede. Grooved bands on Ganymede were suggested to have formed by an extensional necking instability , and we suggest that it has also been involved in the formation of grooved bands on Enceladus. Extensional necking on Enceladus implies high surface thermal gradients  and would be consistent with high heat flows previously derived in this area . From the wavelength of topography (~ 5 km) the theory predicts brittle layer thicknesses of ~ 1.4 km, which matches the lithospheric thickness derived from flexure studies nearby the band .
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Grooved bands on Enceladus: morphology and implications.|
|In ISI Web of Science:||No|
|Keywords:||Enceladus, topography, bands|
|Event Title:||Icy Satellites of the Saturnian System|
|Event Location:||London, UK|
|Event Dates:||29 June - 30 June 2009|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EW - Erforschung des Weltraums|
|DLR - Research area:||Space|
|DLR - Program:||W EW - Erforschung des Weltraums|
|DLR - Research theme (Project):||W - Vorhaben CASSINI (old)|
|Institutes and Institutions:||Institute of Planetary Research > Planetary Geodesy|
|Deposited By:||Dr.rer.nat. Bernd Giese|
|Deposited On:||28 Aug 2009 09:05|
|Last Modified:||15 Jan 2010 01:40|
Repository Staff Only: item control page