Sub-Cambrian peneplain
From Infogalactic: the planetary knowledge core
The sub-Cambrian peneplain is a geomorphic unit covering large swathes of Fennoscandia. It consists in a series of discontiguous low relief zones that are at some locations covered by a sedimentary rock cover dating to the Cambrian. Close to the cover rocks the exposed parts of the peneplain are extraordinarily flat.[1] In Norway the peneplain is apparently disrupted by vertical displacement along faults, following an NNE-SSW orientation.[2]
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