Continental Drift Flashcards

1
Q

What is the name of the single land mass

A

Pangaea -( all lands )

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2
Q

What was Alfred wegner’s hypothesis

A

All continents has been joined together in a single land mass and have drifted apart

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3
Q

What did Pangaea break up to be

A

Laurasia and bondwana land
Laurisia - Europe and Asia
Bondwana - Africa

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4
Q

What is the most evidence of continental drift

A

Apparent fit of the continent
Wegner priced together maps that showed mountain ranges that matched up in SA and South America
Eg elbow of South America fits into the armpit of Africa

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5
Q

Other evidence of continental drift

A

European coal mines matched up with coal mines in North America
And
Coal which is formed from fossilized plant remains is found on a cool climate like south whales

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6
Q

Explain the climatic evidence of continental drift

A

Spitsbergen an Arctic island which is ice covered Was found with fossils of tropic plants
When these plants lived long ago the island must have had warm climate
It was also found that the same time it was warmer in Spitsberg it was colder in SA

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7
Q

What are glaciers

A

Thick layers of ice

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8
Q

Explain how palaces magnetic dating is evidence if continental drift

A

It was found that certain rocks in different continents had the same magnetic pattern and same age , proving that they were formed in the same place

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9
Q

What is palaes magnetic dating

A

Process of determine the ages of rocks by studying their carbon content and magnetic characteristics

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10
Q

What is the Summary of continental drift evidence

A
Apparent fit of continents 
Fossils 
Rock 
Palaes magnetic dating 
Climate
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