Definition
A crater within a crater where the inner crater is surrounded by a shallower outer crater, where both features lie below the elevation of the target surface.
Related terms
Concentric crater (on the Moon, e.g., Quaide and Oberbeck 1968) bench crater (on the Moon, e.g., Wilcox et al. 2005). Inner structure: inner crater, basement crater, central crater, inner basin. Outer structure: outer crater, annular trough, brim
Subtypes
- (1)
A central crater within a concentric crater caused by variations in the excavation flow due to target layering (includes marine-target craters formed in intermediate water depth)
- (2)
A central crater within a concentric crater caused by collapse and slumping of layered target strata surrounding the nested, basement crater. (Ormö and Linsdtröm 2000)
Formation
- (1)
A nested crater forms when a projectile penetrates a layered target, in which the surficial layer has significant differences in the properties (e.g., strength, density, wave speed) relative...
References
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Ormö, J. (2014). Nested Crater. In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_515-1
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_515-1
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