FIELD TRIP IN FORT MCMURRAY, ALBERTA
Vertical thickness (m)
Lithology Paleosol
Grain size Sedimentary structures
Unknown
Horizontal lamination
Oil stain Clay con- tent
0% 50%
Daphne Island outcrop �
6
Sandstone Coarse to very coarse
Sandstone and mud- stone inter- layer
Hangingstone outcrop
Mainly fine in sandy layer, clay in muddy layer
Cross bedding
near the surface, 90%-100% inside the unexposed formation
Bioturbation (burrows of skolithos)
90%-100% in sandy layer, and 0%-10% in muddy layer
50% Facies None
0%-10% Filled chan- nel
Flow unit ranking
None 1st
Elevation (m)
>6 5-6
0%-10% in sandy layer, and 90%-100% in muddy layer
Sand-
dominated IHS
3rd
1-5
The observation of Hangingstone outcrop was from a fair distance away. The IHS and FA1 facies both present here. The ratio of muddy to sandy layers is less than one, denoting that it is sand-dominated IHS. The total thickness of the IHS and FA1 could be approximately 20 meters. Above it is a 2-meter thick shale interval acting as the capstone.
Photo 1. IHS facies in the middle McMurray formation.
Photo 2. Soft sediment deformation within the middle McMurray formation.
Photo 3. Reversed cross bedding in the middle McMurray formation.
Photo 4. Cross bedding visible within the lower McMurray formation.
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