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Author Question: What two features of the magnetic field do magnetic iron-bearing minerals that crystallize out of ... (Read 129 times)

hubes95

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on: Jul 15, 2018

What two features of the magnetic field do magnetic iron-bearing minerals that crystallize out of
  magma record? What will be an ideal response?



Question 2

What is it about a cooling lava that allows geologists to determine the location of past magnetic poles? What will be an ideal response?


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TheDev123

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Reply #1 on: Jul 15, 2018
Answer to Question 1

The minerals record the strength and direction of the Earth's magnetic field at the time of
crystallization.



Answer to Question 2

Iron-bearing minerals in a cooling lava align themselves in the direction of the current magnetic field
as they cool below the Curie Point.



hubes95

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Reply 2 on: Jul 15, 2018
Gracias!

mjenn52

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Reply 3 on: Yesterday
Excellent

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