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The earth has a magnetic north and south. How does this help up with evidence to support the theory of Continental Drift? For 7th grade Plz?

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  • The earth has a magnetic north and south. How does this help up with evidence to support the theory of Continental Drift? For 7th grade Plz?


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Answer #1 | 05/05 2015 21:56
Iron particles in liquid lava will often align with the North South magnetic lines as it slowly cools. Scientists can look at old lava flows and find the direction of orientation of the iron minerals in the hardened rock and thus learn where North and South were at the time of the lava flow----this can give evidence that the Contentment's have changed position since. Yes, other things like local earthquakes, fault slipping and moving and reversing of the magnetic poles can affect this too---But close examination of the area, and comparing it to other places, will reveal which is the most likely cause of the orientation of the iron particles---Continental Drift is ONE of the causes.
Positive: 50 %
Answer #2 | 05/05 2015 19:07
Look up paleomagnetism
Positive: 50 %
Answer #3 | 05/05 2015 14:56
Iron particles in liquid lava will often align with the North South magnetic lines as it slowly cools. Scientists can look at old lava flows and find the direction of orientation of the iron minerals in the hardened rock and thus learn where North and South were at the time of the lava flow----this can give evidence that the Contentment's have changed position since. Yes, other things like local earthquakes, fault slipping and moving and reversing of the magnetic poles can affect this too---But close examination of the area, and comparing it to other places, will reveal which is the most likely cause of the orientation of the iron particles---Continental Drift is ONE of the causes.
Positive: 50 %
Answer #4 | 05/05 2015 12:07
Look up paleomagnetism
Positive: 50 %
Anonymous598750 | 17/01 2018 07:23
confused
Positive: 50 %

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