1A surface of contact between two groups of unconformable strata: erosion beneath the Hercynian unconformity has removed most of the Westphalian strata
More example sentences
- First, there are no late Cambrian rocks in many areas: they are represented by unconformities.
- Both overlie a pronounced angular unconformity and both are predominantly fluvial deposits.
- That unconformity is overlain by sandstones of the Puentelles Formation, dated as late Kasimovian based on its fossil flora.
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