By using the magnetometer the magnetic polarity will be shown through a timescale that contains the normal and a reverse polarity.
Sea floor spreading and magnetic striping.
Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometer s to measure the magnetism of the ocean floor in the 1950s.
This is thought due to temperature gradients in the asthenosphere from mantle plumes near the spreading center.
Magnetic striping magnetic minerals are found in rocks.
These two things were the magnetic striping on the ocean floor and the age of seafloor rocks.
Magnetic stripes in the 20th century the magnetic survey was conducted in the mid ocean ridge in order to investigate evidence of sea floor spreading.
Plate tectonics and reversals of the earth s magnetic field are responsible for the magnetic stripes found on the ocean floor.
Seafloor spreading and magnetic striping rising magma assumes the polarity of earth s geomagnetic field before it solidifies into oceanic crust.
Magnetic stripes formed during seafloor spreading in some locations spreading rates have been found to be asymmetric.
At spreading centres this crust is separated into parallel bands of rock by successive waves of emergent magma.
Magnetic striping of the sea floor after mid ocean ridges and trenches were discovered more evidence was discovered that helped to support the theory that the continents had moved around.
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The paleomagnetic stripes on the seafloor for a pattern that looks like a bar code.
The half rates differ on each side of the ridge crest by about five percent.
What kind of pattern makes it easiest to identify the age of a particular patch of seafloor where the pattern include many stripes or few stripes over the same width.
What two factors are involved in setting the width of a paleomagnetic stripe.