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What happens to minerals in rocks that cool in the presence of the Earth's magnetic field?
Wiki User
∙ 10y ago
If the rock contains magnetic minerals such as Heamatite then these minerals will orientate their own magnetic field lines to match those of the earth. As such we see bars of rock as we move away from a mid-ocean ridge with different magnetic orientations to match the switching magnetic poles of the earth.
Wiki User
∙ 10y ago
Wiki User
∙ 14y ago== == Minerals present in the magma crystallize at different temperatures when cooling. And generally, the longer they take to cool, the larger the crystals.
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Explain how the reversal of earths magnetic poles can be produce a calendar for part of earths history?
In rock formed when the sea floor is being built, such as at the mid-Atlantic ridge, the minerals preserve the magnetic polarity. Since the flipping of the poles is fairly regular, the count of the bands can give a time.
Do bats use the earths magnetic fields?
no
Earths magnetic field does not affect what?
Other planets
What gives rise to the Earths magnetic field?
Current flows inside he Earth.
What do scientists think produces earths magnetic field?
Its molten iron core.
What happens in earths interior to produce earths magnetic?
The movements in the liquid inner core.
What happens in earths interior produce earths magnetic field?
The movements in the liquid inner core.
Where does the convection that causes earths magnetic field?
The convection that causes Earth's magnetic field happens in Earth's molten outer core.
What happens to earth's interior to produce earths magnetic field?
The movements in the liquid inner core.
Minerals in igneous rocks can show the direction of earths?
The Earth magnetic field changes approximately every 200,000 thousand years.
The convention that causes earths magnetic field happens in earths?
core
The alignment of iron-bearing minerals in rocks when they formed reflections the fact that earths has reversed itself several times in its past?
magnetic field .
What happens in earth interior to produce earths magnetic field describe the layer where the magnetic field is produced?
What escapes the crust is what we observe as the earths magnetic field. The outer core is a rotating mass of fluid metal that induces an electrical current which in turn generates the magnetosphere.
The possible source of earths magnetic core is?
The molten iron and medals inside the earths core are the reasons for the earths magnetic core.
Explain how the reversal of earths magnetic poles can be produce a calendar for part of earths history?
In rock formed when the sea floor is being built, such as at the mid-Atlantic ridge, the minerals preserve the magnetic polarity. Since the flipping of the poles is fairly regular, the count of the bands can give a time.
What is earths magnetic field called?
It is Earths' "Magnetosphere".
Is Lanthanum magnetic?
which of the list of rare earths are magnetic
