The fast-eroding cliffs at #Happisburgh, Norfolk exhibit splendid exposures of a "tripartite" (like neapolitan ice cream) Quaternary #geological succession - massive brown/grey #glacial till at the base, overlain by dark, laminated pro-glacial lake muds, then by glaciofluvial sands.
Two photos show infilled channels in the upper surface of the till, and one shows where the upper two units have been eroded back, exposing the upper surface of the half million year old Happisburgh Till Member.
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