|
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Geological Column Below Lloydminster
(greatly simplified - not exactly to scale)
(note depths in meters (m) on right hand side)
Glacial Till
(boulders, rocks, gravel pushed around by glaciers) |
 50m |
Cretaceous Shales |
 500m |
Coal |
 |
Shale |
 530m |
Sand and
Unconsolidated Sandstone
(oil bearing zones in layers 3 - 8 m
thick within the Mannville
Group
which extends from the 530 m
level to the 700 m level)
Zone interspersed with shale
and barren sand |
 700m |
Limestone, Dolomites, and
Evaporites
(Upper Devonian) |
 950m |
Prairie Evaporites
Gypsum and Potash |
 1050m |
Limestone, Dolomites, and
Evaporites
(Lower Devonian) |
1400m |
Metamorphic, Igneous, and
Sedimentary Crystalline
basement
(Pre-Cambrian) |
 |
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