0
How will magnetic minerals align in a rock if earth has no magnetic field?
Wiki User
∙ 11y ago
Assuming there is no Earth magnetic field, and no other significant magnetic fields, they will not allign in any preferred direction.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Are all magnets man-made?
No, a magnetic field is induced by moving electric charges. If a ferrous material (one containing iron) is placed in a magnetic field, the individual magnetic dipoles can be aligned in accordance with the magnetic field. Since the molten iron in the earth's core carries charges, a magnetic field is induced around the earth (with field lines coming OUT of the south pole and into the north). This magnetic field can align magnetic dipoles just as any man-made electromagnet can.
What creates the Earths magnetic field?
Scientists believe that it is the movements in the liquid outer core that create the magnetic field. Earth's magnetic field affects the whole planet.
Earth's magnetic field is believed to be generated from what region?
If you mean the region of influence of the earth's magnetic field then its called the earth's magnetosphere
How would you use the Earth's magnetic field to tell you where on Earth you are?
You can't. The only thing the earth's magnetic field can tell you is the direction from where you are toward the earth's magnetic pole. That doesn't tell you anything about where you are.
Who had first detected the presence of magnetic field in earth?
Albert Einstien was the first to detect the presence of magnetic field in earth
Do magnetic domains of iron naturally align with earth's axis?
Magnetic domains have the tendency to align with magnetic fields. The Earth's magnetic field is relatively weak, but I would expect SOME alignment.
What is fossil magnetism?
In hot Iron bearing rocks or magmas the iron minerals they contain align themselves parallel to the Earth's magnetic field. When they cool below about 500 degrees Celsius the the iron minerals 'freeze' in this magnetic orientation and are no longer able to adapt to any changes in the Earth's field (which occasionally reverses polarity and wanders). This frozen magnetic alignment is a fossil of the ancient magnetic field and can be 'read' to find out what the Earth's magnetic field has been doing in the past.
How does solidified magma come to be magnetic?
As magma solidifies to form rock, iron-rich minerals in the magma align with Earth's magnetic field in the same way that a compass needle does. When the rock hardens, the magnetic orientation of the minerals becomes permanent. This residual magnetism of rock is called paleomagnetism.
How solidified magma comes to be magnetic?
As magma solidifies to form rock, iron-rich minerals in the magma align with Earth's magnetic field in the same way that a compass needle does. When the rock hardens, the magnetic orientation of the minerals becomes permanent. This residual magnetism of rock is called paleomagnetism.
Magnetic minerals prove Earth has had?
A liquid iron core that spins creating a magnetic field
What causes the magnetic compass to react with a magnet?
The compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
How does earth magnetic field affect a compass?
The earth's magnetic field acts upon the magnetic material of the compass needle, causing it to align to the field. Thus, the compass appears to point North, which is "magnetic north". Magnetic north and "true north" are about 300 miles apart.
The alignment of iron minerals in rocks when they are formed reflects the fact that Earth's has reversed itself several times in the past?
magnetic field.
Why compass react when place near a magnet?
The compass needle is a small bar magnet balanced on a pin. It swivels freely on this balance point. This is how it can align with the magnetic field of the Earth to show what direction magnetic north is. When you introduce another magnetic field, like from a magnet in close proximity, the needle will align with these local fields since their field strength is stronger than Earth's magnetic field - locally.
How the compass works?
The Earth has a magnetic field approximately like a magnetic dipole, with the magnetic field S pole near the Earth's geographic north pole and the other magnetic field N pole near the Earth's geographic south pole. A compass can determining direction relative to the Earth's magnetic poles by using a magnetized pointer (usually marked on the North end) which is pivoting free to align itself with Earth's magnetic field.
Why doesn't magnetic North Pole align exactly with the geographic North Pole?
The moon's orbit affects the magnetic field surrounding the earth.
Why does a compass point North?
The magnetized needle of a compass is attracted to the Earth's own magnetic field which has magnetic poles at the North and South.
