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unconformity trap


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A stratigraphic trap formed by the folding, uplift, and erosion of porous strata, followed by the deposition of later beds which can act as a seal for oil, gas or water. Although common structures, these traps contain only 4 per cent of the world's oil, perhaps because of losses that occur during uplift and erosion.

Subjects: Earth Sciences and Geography — Ecology and Conservation.


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