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Archival description
W.O. Kupsch fonds
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Ventifacts

Ventifacts. A facet on a ventifact is cut by the impact of grains of wind-driven sand. Leet and Judson, 1958, p. 285.

Ventifact near Dettifoss

Ventifact near Dettifoss. Same as in slide 4, but sharp edge of this boulder may in part be the result of its original shape which is a fragment of a hexagonal basalt column. August 5, 1960.

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