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Measuring impact crater depth throughout the solar system
Beyer, Ross A.; Robbins, Stuart J.; Watters, Wesley A. +9 more
One important, almost ubiquitous, tool for understanding the surfaces of solid bodies throughout the solar system is the study of impact craters. While measuring a distribution of crater diameters and locations is an important tool for a wide variety of studies, so too is measuring a crater's "depth." Depth can inform numerous studies including th…
Testing landslide and atmospheric-effects models for the formation of double-layered ejecta craters on Mars
Head, James W.; Weiss, David K.
Double-layered ejecta (DLE) craters are distinctive among the variety of crater morphologies observed on Mars, but the mechanism by which they form remains under debate. We assess two ejecta emplacement mechanisms: (1) atmospheric effects from ejecta curtain-induced vortices or a base surge and (2) ballistic emplacement followed by a landslide of …
Search for sulfates on the surface of Ceres
McFadden, L. A.; Ruesch, O.; Li, J. -Y. +3 more
The formation of hydrated salts is an expected consequence of aqueous alteration of Main Belt objects, particularly for large, volatile-rich protoplanets like Ceres. Sulfates, present on water-bearing planetary bodies (e.g., Earth, Mars, and carbonaceous chondrite parent bodies) across the inner solar system, may contribute to Ceres' UV and IR spe…
Remote spectral-compositional analysis of basalt mineralogy at Hansteen-Billy, Moon
Chauhan, Mamta; Bhattacharya, Satadru; Pathak, Sumit +1 more
The Hansteen-Billy region of the Moon lying toward the southwest edge of Oceanus Procellarum is characterized by emplacement of three different aged basaltic units viz. INm, Im, and Em. The present study primarily utilizes high-resolution Chandrayaan-I, Moon Mineralogy Mapper (M3) data clipped at 2.5 µm for mineral analysis of the…