Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8137611 | Icarus | 2014 | 7 Pages |
Abstract
Analysis of images that were obtained at different phase angles can give clues to the texture of a planetary surface. Here we describe MESSENGER phase-ratio images for features on the surface of Mercury, including hollows on the floor of Eminescu basin, a pyroclastic deposit found within the Caloris basin, and a dark impact-melt flow produced by the impact that formed Waters crater. The results indicate that hollows and the pyroclastic material are characterized by finer particle size or smoother sub-resolution roughness than the ordinary impact-generated regolith. The impact melt flow appears to have a surface that is rougher or consists of coarser particle sizes than the nearby background.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
David T. Blewett, Connor L. Levy, Nancy L. Chabot, Brett W. Denevi, Carolyn M. Ernst, Scott L. Murchie,