Examples of regolith

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In addition, the unconsolidated nature of the lunar regolith may further enhance the survivability of impacting meteorites.
The difference between scenarios (c) and (d) will be related to the porosity of the regolith.
In the same way, frozen dust deposits on the surface suggest the contemporary presence of huge amounts of water in the regolith.
Our previous work, using palagonite as a regolith analog, indicated that peroxide diffusion would be limited to a few centimeters.
The chapter concludes with what we have learned about the surface processing (cratering and regolith) of asteroids from recent close encounters by spacecraft.
Using the same parameters but with an extinction depth of 5 m, more reasonable values for the regolith depth are yielded.
Not only do they contain important ores and reveal buried and weathered ores, but regolith includes important records of global change.
The syndromes are affected by the lithology, stratigraphy and tectonics of the bedrock, and by topogenesis and regolith formation.
Thus, over millions of years, substantial deposits of water ice might accumulate, presumably mixed in with the uppermost few metres of regolith.
Several definitions of regolith are cited along the general lines of unconsolidated soil and sediment at the surface.
There is much to be gained from more detailed and sophisticated studies of regolith.
This emerges as the strength of this volume, which particularly emphasizes the arsenal of chemical and petrographic approaches now applied to the study of regolith.
In this formulation, the regolith that composes the erodible sediment layer below the surface is assumed to be cohesive.
Mars regolith is expected to have high salt concentrations.
This would permit physical mixing of the regolith to move the oxidized material.
The regolith itself is a mixture of loose soil, dust and rock on the surface, which has probably become compacted to a greater or lesser degree with depth.
The mole is designed to burrow to depths of up to 5 m, enabling measurements to be taken at regular intervals through the regolith, and possibly into bedrock.
Although currently present at y30 ppm near the surface, the atmospheric water vapour distribution is vital to understanding the water exchange with the regolith and loss to space.
Ice within the regolith is an important astrobiology target.

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