Manitoba Flashcards
List the three Eras that sedimentary rock in Manitoba was deposited. (3 Marks):
Paleozoic
• Mesozoic
• Cenozoic
The _______ period of rocks are hidden from sight and are not exposed at the surface.. (1
Mark)
Mississippian
List the four natural region found in Manitoba. (4 Marks)
Canadian Shield
• Interior Plains
• Hudson Bay Lowland
• Artic Region
A vast mass of exposed Precambrian rock known as the Canadian Shield covers about ____ of
Manitoba. (1 Mark)
3/5
The Manitoba Escarpment divides Manitoba into what two areas? (2 Marks)
Manitoba Plains
• Saskatchewan Plains
Where is Brandon, Manitoba located? Manitoba Plain or Saskatchewan Plain
Saskatchewan Plain
Riding Mountain National Park is located on the ______
Manitoba Escarpment.
The Hudson Bay Lowland lies in the transition zone between the ______ (boreal forest) and the
Arctic Region in the northeast. (1 Mark)
taiga
All of Manitoba drains into the _______
Hudson Bay
The oldest and most abundant rocks found in Manitoba are __________ in age.
Precambrian
- List the 2 provinces that Precambrian rocks in Manitoba are divided into. (2 Marks)
- Superior Province
* Churchill Province
______ are named for the presence of green metamorphic minerals such as chlorite,
actinolite and epidote. (1 Mark)
Greenstones
- A boundary zone, known as the ________ occurs between the two
Precambrian Provinces of Manitoba. (1 Mark
Churchill Superior Boundary Zone
- Marine vertebrate fossils of mosasaurs and plesiosaurs (marine amphibians) are found in the
________ rocks of Manitoba
Mesozoic
- Minor occurrences of ________ Era rocks (rocks between 65 and 1.6 million years old) occur in
the Turtle Mountain area of Manitoba. These sediments consist of sandy to silty shales.
(1 Mark
Cenozoic
During the last 1.6 million years, the ________, Manitoba has been subjected to
repeated glacial advances and retreats. Glacial ice advances resulted in erosive scouring of the
Precambrian, Paleozoic, Mesozoic and Cenozoic rocks. (1 Mark)
Pleistocene Epoch,
The eroded material picked-up by the ice was later deposited as ____ (a mixture of rock and
mineral fragments scoured from rocks over which the glacial ice moved), _________ (as
water flowed from the melting glacier) and ___________ (in pro-glacial lakes: Lake
Agassiz) as the glacial ice receded. (3 Marks
till
Outwash deposits
fine grain lake deposits
What is causing Norther Manitoba to gradually rise to its pre-existing level prior to glaciation, at
a rate of about 60cm per century? (1 Mark)
Glacial rebound.
