Want this question answered?
there are 7 layers in earths mantle.
Sea floor spreading / plate tectonics. Also magnetic reversal in the past.
Layers.
the crust
it is a part of the EARTH layers.
In the Dynamo Theory, the magnetic field of the earth is created in the outer core. The fluid contained in the outer core creates and maintains the magnetic field during rotation.
Your mom made the earths layers
there are 7 layers in earths mantle.
Sea floor spreading / plate tectonics. Also magnetic reversal in the past.
== ==
The two layers of earth that are made up of liquids are the crust and the outer core. The crust is the surface of the earth which is where the oceans are. The outer core is made up of iron and is the creator of the earths magnetic field.
the crust
No
Bdjxd
the crust
They form by the cooling of ferrous rock at the time it transitions from a molten state to a solid state. The ferrous particles are trapped in the orientation of the earths current magnetic field. The earths magnetic field alternates every certain number of years (a huge number like 500,000 years.) Since rock will cool at different times alternating layers of rock can have a completely opposite magnetic orientation. They are useful because you can tell the relative age of the different layers of rock based on this evidence. Hope this helps. Very brief and crude explanation.
Layers.