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W.O. Kupsch fonds
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Ashlayers exposed in pit - near Ludent crater

Ashlayers (rhyolitic, white, and basic, black) exposed in pit. From bottom to top. Hekla 4 (4000 years ago, white with black), Hekla 3 (about 2700 years B.P., white), Hverfjall (about 2500 B.P., basic volcanic ash), laxa (about 2000 B.P., basic). Near Ludent crater. August 4, 1960.

Ashlayers exposed in pit - near Ludent crater

Ashlayers (rhyolitic, white, and basic, black) exposed in pit. From bottom to top. Hekla 4 (4000 years ago, white with black), Hekla 3 (about 2700 years B.P., white), Hverfjall (about 2500 B.P., basic volcanic ash), Laxa fall (about 2000 B.P., basic). Near Ludent crater. August 4, 1960.

At Lynn Lake airport

From left to right: Fred Carrothers, Ron Hodghinson, Stuart Lake, Lyle Gillespie at Lynn Lake airport. July 31, 1965.

Athabasca tar sand

"Athabasca tar sand" (McMurray formatio of Lower Cretaceous age). Hangingstone Valley near Waterways, Alberta. Colin McKenzie looking at outcrop.

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