Heavy Oil Science Centre - Overburden

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Geological Column Below Lloydminster
(greatly simplified - note depths in meters (m) on right hand side)

Glacial Till
(boulders, rocks, gravel pushed around by glaciers)

wpe24.jpg (3612 bytes)50m

Cretaceous Shales

wpe26.jpg (1224 bytes)500m

Coal

wpe27.jpg (748 bytes)

Shale

wpe28.jpg (1224 bytes)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

wpe29.jpg (1010 bytes)700m

Limestone, Dolomites, and
Evaporites
(Upper Devonian)

wpe2A.jpg (1743 bytes)950m

Prairie Evaporites
Gypsum and Potash

wpe2B.jpg (1496 bytes)1050m

Limestone, Dolomites, and
Evaporites
(Lower Devonian)

wpe2A.jpg (1743 bytes)1400m

Metamorphic, Igneous, and
Sedimentary Crystalline
basement
(Pre-Cambrian)

wpe2C.jpg (1764 bytes)