Manitoba Flashcards

1
Q

List the three Eras that sedimentary rock in Manitoba was deposited. (3 Marks):

A

Paleozoic
• Mesozoic
• Cenozoic

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2
Q

The _______ period of rocks are hidden from sight and are not exposed at the surface.. (1
Mark)

A

Mississippian

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3
Q

List the four natural region found in Manitoba. (4 Marks)

A

Canadian Shield
• Interior Plains
• Hudson Bay Lowland
• Artic Region

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4
Q

A vast mass of exposed Precambrian rock known as the Canadian Shield covers about ____ of
Manitoba. (1 Mark)

A

3/5

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5
Q

The Manitoba Escarpment divides Manitoba into what two areas? (2 Marks)

A

Manitoba Plains

• Saskatchewan Plains

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6
Q

Where is Brandon, Manitoba located? Manitoba Plain or Saskatchewan Plain

A

Saskatchewan Plain

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7
Q

Riding Mountain National Park is located on the ______

A

Manitoba Escarpment.

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8
Q

The Hudson Bay Lowland lies in the transition zone between the ______ (boreal forest) and the
Arctic Region in the northeast. (1 Mark)

A

taiga

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9
Q

All of Manitoba drains into the _______

A

Hudson Bay

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10
Q

The oldest and most abundant rocks found in Manitoba are __________ in age.

A

Precambrian

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11
Q
  1. List the 2 provinces that Precambrian rocks in Manitoba are divided into. (2 Marks)
A
  • Superior Province

* Churchill Province

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12
Q

______ are named for the presence of green metamorphic minerals such as chlorite,
actinolite and epidote. (1 Mark)

A

Greenstones

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13
Q
  1. A boundary zone, known as the ________ occurs between the two
    Precambrian Provinces of Manitoba. (1 Mark
A

Churchill Superior Boundary Zone

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14
Q
  1. Marine vertebrate fossils of mosasaurs and plesiosaurs (marine amphibians) are found in the
    ________ rocks of Manitoba
A

Mesozoic

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15
Q
  1. 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
A

Cenozoic

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16
Q

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)

A

Pleistocene Epoch,

17
Q

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

A

till
Outwash deposits
fine grain lake deposits

18
Q

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)

A

Glacial rebound.