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Kupsch, Walter Oscar
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Basal coal of Ravenscrag burnt to white ash

Basal coal of Ravenscrag (Paleocene correlative of Fort Union) burnt to white ash; shale brick red. Underlying the coal is green sand of Frenchman formation (Upper Cretaceous).

Ravenscrag Butte, Saskatchewan

Grey (below) and buff facies at Ravenscrag (Paleocene) formation at type section, Ravenscrag Butte, Saskatchewan.

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Resultados 91 a 105 de 1945