Theories of continental drift Flashcards
1
Q
What did Alfred Wegener say
A
Continents fitted together like a jigsaw
Theory of continental drift
2
Q
Fossil Evidence
A
Fossilised plants have been found in Antarctica and India
Mesosaurus found in South America and South Africa
3
Q
Rock Striations
A
The UK, US and Antarctica all have coal originating from tropical regions
Similar striations in Canada and Scotland
4
Q
Paleomagnetism
A
Magma constantly pushed up from magma ridge
Minerals align to the magnetic field
Produces striation gradients
Alternating symmetrical stripes found
5
Q
Sea floor spread
A
New rocks are found in the middle of the ridge
Older rocks are further away
Moving apart
