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dish structure


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A sedimentary structure seen in sandstones, and characterized by repeated horizons comprising a series of concave-upwards, dish-like laminations. The dishes are commonly lined with thin (0.2–2.0mm) clay laminae and are separated by vertical pillar structures. Both the dish structures and associated pillars are formed by dewatering of the pore water from unconsolidated sands.

Subjects: Earth Sciences and Geography.


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