Geological History Sheet 2

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CGC1P
Geologic Time
Name:_______________
(old Making Connections text)
CANADA’S GEOLOGICAL HISTORY
Period:___
Making Connections, pages 93-94 & glossary
1. Define the following terms:
Erosion:
Fossils:
Geological Time:
Eras:
Using figure 10-6 on page 94, answer the following questions.
2. How old is the earth? _______________________
3. List the names of the 4 main Geologic Eras (time periods).
1
3
2
4
4. What is the name of the era we live in? _________________________________
5. Label and shade each era on the bar diagram below. Please note the timeline is NOT to scale:
1
THE PRECAMBRIAN ERA
Making Connections, pages 95-97 & glossary
1. Define the following terms:
Precambrian era:
Canadian Shield:
Folding and Faulting:
2. ‘The earth’s physical landscape is the result of conflicting forces of ____________________
and forces of ___________________.’ (Fig 10-7 pg 95)
3. a) What part of Canada was created during the Precambrian era? ___________________
b) What are the main ‘type of rocks’ that make up this landform? _______________________
c) How did it differ in appearance from today? ___________________________
_________________________________________________________________
4. MAPPING:
a) Using the Precambrian Map of Canada shade in the area known as the Canadian Shield
(page 101 is a reference map)
Precambrian Map
Canadian Shield
2
THE PALEOZOIC ERA
Making Connections, pages 97-98 & glossary
1. Define the following terms:
Paleozoic Era:
Bedrock:
2. What happened to Pangaea during the Paleozoic era?
3. Geologists believe that Canada was located closer to the equator during the early part of the
Paleozoic era. Why does the text state that being in this tropical location was significant for
Canada?
4. What were the only life forms that existed during the Paleozoic era?
5. MAPPING: Shade in those low-lying areas around the Canadian Shield that were once
ancient tropical seas during the Paleozoic era on the Palaeozoic and Mesozoic Map of Canada
on the next page. (Be sure to include this color in the legend)
THE MESOZOIC ERA
Making Connections, pages 98-99 & glossary
1. Define the following term:
Mesozoic Era
2. What MAJOR EVENTS marks the division between the Paleozoic and Mesozoic eras
according to the text?
3. During the Mesozoic era the North American plate collided with the Pacific plate. What
Western mountain chain was created by this collision?
3
4. MAPPING: Shade the mountainous region of Canada that resulted from the collision of the
North American plate and Pacific plate on the Paleozoic and Mesozoic Map below. (Be sure
to include this color in the legend)
Palaeozoic and Mesozoic Map
Interior Plains
Arctic and Hudson Bay Lowlands
Great Lakes – St Lawrence Lowlands
Western Cordillera (Rockies)
THE CENOZOIC ERA
Making Connections, pages 99-100 & glossary
1. Define the following terms:
Cenozoic era:
Ice Age:
2. Describe the effects that the last 4 period of glaciations have had on the Canada:
3. Outline the origins of the three continental glaciers that
formed in Canada. Use the map provided on page 121 and
clearly identify the three regions where glaciers formed. (Be
sure to include a proper labels or a legend).
4
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