Construct · 1 fields · 1 citations

crater: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
crater1 CONSTRUCTImpact craterMELOSH · IMPACT

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Planetary science

A bowl gouged by a high-speed impact

In planetary science a crater is the bowl-shaped scar left when a meteoroid or asteroid strikes a surface at high speed, the kinetic energy of the impact excavating and ejecting rock and often leaving a raised rim and central peak. Crater size and form record the energy of the impact and the age of the surface, since older terrains accumulate more craters. Melosh's Impact Cratering: A Geologic Process is the standard treatment of the shock physics and resulting landforms. The referent is an excavation formed by impact, measured by diameter, depth, and morphology, distinct from a vent in a volcano or a pit at the end of a weld.[1]

Unit
The diameter, depth, and rim morphology of the excavated impact scar
Recovery means
Not applicable
Measured by
Characterised by crater diameter and depth and by crater counts used for surface dating

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Nearby constructs

vent2 fields · 2 citationsjingle · one word, two constructscollapse4 fields · 5 citationsjingle · one word, four constructsdepression3 fields · 3 citationsjingle · one word, three constructs

References

  1. Melosh, H. J. (1989). Impact cratering: A geologic process. Oxford University Press. ISBN 9780195042849

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