Grooves on small saturnian satellites and other objects: Characteristics and significance

Details Grooves on small saturnian satellites and other objects: Characteristics and significance Grooves on small saturnian satellites and other objects: Characteristics and significance

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009icar..204..262m&link_type=abstract

Icarus, Volume 204, Issue 1, p. 262-270.

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Scientific paper

High-resolution images from the Cassini Imaging Science Subsystem (ISS) show parallel sets of grooves on Epimetheus and Pandora. Grooves have previously been observed on other satellites and asteroids, including Phobos, Gaspra, Ida, Eros, and minor occurrences on Phoebe. Sets of parallel grooves are so far observed only on satellites known or likely to be subject to significant tidal stresses, such as forced librations. Grooves on asteroids and on satellites not subject to significant forced librations occur in more globally disorganized patterns that may reflect impacts, varying internal structures, or even thermal stresses. The patterns and individual morphologies of grooves on the tidally-affected satellites suggest fracturing in weak materials due to tidal stresses and forced librations.

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