ejecta blanket


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ejecta blanket

A deposit of ejecta from a crater or basin, the thickness of which decreases with distance from the crater or basin rim. The surface may exhibit transverse dunes, radial furrows, and secondary craters.
References in periodicals archive ?
Painstaking examination of Lunar Reconnaissance Orbiter images has turned up traces of 32 spacecraft or components that have crashed into or landed on the Moon--but the tiny crater and ejecta blanket created by the impact of Luna 2 remain an elusive needle in a vast haystack.
While most of Nix is a neutral white, the crater and its ejecta blanket (the material thrown out by the crater) appear to be a much redder material.
Another indication of subsurface water is seen in the fluidised ejecta blanket surrounding the crater at the northern edge of the first and topographic images.
Nevertheless, the accumulation of erratic irregular blocks which are randomly distributed, having diameters from 20cm to 3m resting over flat terrains suggest that they correspond to ejecta blanket blocks.
Research the following impact crater features: rays, rim, ejecta blanket, wall, floor, central peak.
Originally, the location was unknown, but LRO scientists discovered the small depression it made near the crater Sundman V in the Orientale Basin ejecta blanket.
The ejecta blanket emanating from the deep crater in the middle of the image shows evidence for volatiles, possibly water ice, while the main crater rim to the top (south) of the image shows evidence for so-called "mass wasting".
On the far left side of the image, parts of an ejecta blanket can be seen, made of material excavated from the ground during the formation of an impact crater.
The opposite effect occurs when the spot is seen with the unaided eye, which condenses the light of the ejecta blanket, increasing the apparent size and intensity of the perceived spot.
It measures about 12 km across and exhibits an ejecta blanket, usually formed by material thrown out during the impact.