Geology√

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Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

1974 results directly related Exclude narrower terms

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.

Baculites compressus

Baculites compressus. Say, from the Cretaceous of the South Dakota. 1. A young shell preserving the early coils. The living chamber occupied about one half the length of the shell. 2. A specimen of the same size as the last but with the outer shell broken away revealing the sutures - the outer edges of the septa. Note the variations in the sutures from the apex of the shell 2 to its wide end and on through the progressively layer shells as shown in 3, 4, 5, and 6, which represents the condition of the suture in the adult shell.

Results 136 to 150 of 1974