Computer Science
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010icar..208..499b&link_type=abstract
Icarus, Volume 208, Issue 1, p. 499-503.
Computer Science
3
Scientific paper
Recent high-resolution Cassini images of the south polar terrain of Enceladus reveal regions of short-wavelength deformation, inferred to be compressional folds between the Baghdad and Damascus tiger stripes (Spencer, J.R., Barr, A.C., Esposito, L.W., Helfenstein, P., Ingersoll, A.P., Jaumann, R., McKay, C.P., Nimmo, F., Waite, J.H. [2009a]. Enceladus: An active cryovolcanic satellite. In: Saturn after Cassini-Huygens. Springer, New York, pp. 683-722). Here, we use Fourier analysis of the bright/dark variations to show that the folds have a dominant wavelength of 1.1 ± 0.4 km. We use the simple model of lava flow folding from Fink (Fink, J. [1980]. Geology 8, 250-254) to show that the folds could form in an ice shell with an upper high-viscosity boundary layer of thickness <400 m, with a driving stress of 40-80 kPa, and strain rate between 10-14 s-1 and 10-12 s-1. Such deformation rates imply resurfacing of the SPT in 0.05-5 Myr, consistent with its estimated surface age. Measurements of fold topography and more sophisticated numerical modeling can narrow down the conditions of fold formation and provide valuable constraints on the thermal structure of the ice shell on Enceladus.
Barr Amy Courtright
Preuss Lauren J.
No associations
LandOfFree
On the origin of south polar folds on Enceladus does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the origin of south polar folds on Enceladus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the origin of south polar folds on Enceladus will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1224833