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

Outcrop of McMurray formation

Horse Creek Valley near McMurray, Alberta. Outcrop of McMurray formation (Lower Cretaceous), commonly called "tar sand" overlain by Clearwater formation (Lower Cretaceous)

Palaeogeography of Lower Upper Cretaceous

Palaeogeography of Lower Upper Cretaceous (Turonian). Stipple pattern is that of marine waters on areas now on continent. Outcrops in black. Shoreline is solid where known, dashed where doubtful. Crosses indicate volcanic activity; circle with dot is location of well. After Schuchert, 1955).

Results 1351 to 1365 of 1974