Experimental Multiblast Craters and Ejecta—Seismo?Acoustics, Jet Characteristics, Craters, and Ejecta Deposits and Implications for Volcanic Explosions

Craters from Impacts and Explosions

Ejecta mobility of layered ejecta craters on Mars: Assessing the influence of snow and ice deposits

The unusual lobate ejecta deposits of martian impact craters have led to several proposed fluidization mechanisms to explain their morphology. Of the fluidized ejecta craters, double-layered ejecta (DLE) craters, believed to form in a decameters-thick surface ice layer, appear to have anomalously large and highly variable ejecta mobility (EM) ratios. We propose that low-aspect-ratio layered eje...

Rampart craters on Ganymede: Their implications for fluidized ejecta emplacement

Some fresh impact craters on Ganymede have the overall ejecta morphology similar to Martian double-layer ejecta (DLE), with the exception of the crater Nergal that is most like Martian single layer ejecta (SLE) craters (as is the terrestrial crater Lonar). Similar craters also have been identified on Europa, but no outer ejecta layer has been found on these craters. The morphometry of these cra...

Rampart craters on Ganymede and Europa: implications for fluidized ejecta emplacement

Recent volcanic resurfacing of Venusian craters

Ejecta from impact craters on Venus are a major source of fine-grained materials across the planet, and crater spatial distribution has been studied as a guide to the relative age and resurfacing rates of large regions. Of particular interest is the potential intersection of distal crater deposits and tesserae, highly deformed landforms that may be the oldest materials on Venus. The composition...