Wiki User
∙ 14y agoBy observing magnetic rocks in geological deposits.
By observing magnetic rocks in geological deposits.
By observing magnetic rocks in geological deposits.
By observing magnetic rocks in geological deposits.
Wiki User
∙ 14y agoWiki User
∙ 14y agoBy observing magnetic rocks in geological deposits.
No the earths core is not a cause of globel worming
Earths lithosphere is made up of upper mantle. The earths lithosphere is broken into separate sections and it is called as tectonic plates or plate tectonics.
the sun
Yes.
Because.
Earth's magnetic poles have reversed many times in the past due to changes in the Earth's molten outer core. As the molten metal moves, it generates the Earth's magnetic field. Over time, this movement can cause the magnetic field to weaken, flip, and establish a new polarity. The process of pole reversals is a natural part of the Earth's geophysical history.
About 41,000 years ago.
Magnetic stripes on the ocean floor are formed as magma from the mantle rises at mid-ocean ridges and solidifies into rock. The Earth's magnetic field periodically reverses its polarity, causing magnetic minerals in the cooling rock to align with the prevailing magnetic field. These alternating magnetic orientations create stripes of normal and reversed polarity that are preserved in the oceanic crust as it spreads away from the ridges. By studying these magnetic stripes, scientists can reconstruct the history of the Earth's magnetic field reversals and the seafloor spreading process.
The earths magnetic field results from deep in the earths core. Magnetic conduction from within the earths core is believed to be the cause of this.
magnetic field.
Yes, the Earth's magnetic field has periodically reversed its direction throughout history. These reversals are known as geomagnetic reversals and have occurred many times over the past few million years.
People use Earth's magnetic field for navigation, such as in compasses to find direction. Animals, like birds and fish, can sense Earth's magnetic field to navigate during migration or find their way in the ocean.
magnetic rocks on the ocean floor show that the Earths magnetic field has been frequently reversed forming new sea floor.
The Earth's magnetic field has changed polarity hundreds of times in the geological past. This phenomenon is known as geomagnetic reversal. The frequency at which these reversals occur is not regular, but on average, it is estimated to happen every few hundred thousand years.
magnetic field .
accorsing to the earths magnetic field
Earth's magnetic field reverses its polarity irregularly, with north and south magnetic poles switching places every few hundred thousand years. This phenomenon is known as geomagnetic reversal. The last complete reversal happened around 780,000 years ago.