GO 568 Title Illustration

Upper Cretaceous chalk pinancle in center, Sommerspiret, stood 102 m above sea level. It was shoved into a vertical position by ice pushing during the late Weichselian glaciation. The chalk pinancle has fallen down in a storm since this picture was taken. Møns Klint, Denmark. Photo date 10/86; © J.S. Aber.

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