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W.O. Kupsch fonds
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Sir John Richardson

Illustrated portrait of Sir John Richardson. Copied from a book. Pioneer Geologists in Saskatchewan.

Skutustadir pseudocrater group

Skutustadir pseudocrater group, the most famous in Iceland. Myvatn area. The craters consist of scoria and lapilli and were formed when lava passed over wet ground. Thet are therefore rootless craters which are in cases difficult to distinguish from real craters. Other rootless craters are spatter cones formed by gases escaping from lava itslef and hornitoes which are stack-like spatter cones. August 3, 1960.

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