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What is Rocks on the sea floor that lie in a pattern. Show a record of the reversals of earths?
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What is it called when rocks are different because Earths magnetic poles change places?
Magnetic Reversal. Several magnetic reversals have occurred over geologic time.
Why are there are almost no extrusive ultra basic rocks in earths crust?
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
What releases chemical weathering of rocks on earths surface?
When chemical weathering occurs on the rocks of earths surface, the earth lets out Phosphorus.Answer: Phosphorus
Where do metomorphic rocks form?
metamorphic rocks are formed in earths crust not on the surface
What is the evidence of pole reversal?
The evidence for Earth's magnetic pole reversals comes from the Geological record. If you look at the fossil polarity of a section of sea floor taken across and to either side of a mid oceanic ridge, there is a mirror pattern of stripes where the rocks have reversed polar directions. Similarly the poles of the Sun reverse every 11 years as the sun goes through a maxima and minima.
How do earths magnetic pole reversals provide evidence for tectonics?
rocks get older as you move away from ocean ridges
What do scientists study to learn about past polarity reversals?
either a earths outer core b the southern lughts c volcanic rocks
What is it called when rocks are different because Earths magnetic poles change places?
Magnetic Reversal. Several magnetic reversals have occurred over geologic time.
What has caused the zebra pattern in the rocks of the ocean floor?
Caused by changes in earth's magnetic field over time, especially reversals of the magnetic poles.
Why do earth magnetic pole reversals provide for plate tectonics?
Rocks lock in their magnetism when they cool.
Why do Earth's magnetic pole reversals provide evidence for plate tectonics?
Rocks lock in their magnetism when they cool.
What does rocks in earths mantle contain a higher percentage of what than rocks in earths crust?
iron and magnesium
How do intrusiver rocks form?
intrusive rocks are formed within the earths surface from magma. extrusive rocks are formed from lava outside of earths surface
Why are there are almost no extrusive ultra basic rocks in earths crust?
There are almost no extrusive rocks on the earths surface because they are all under the earths surface. They are mainly lower than the earths surface.
What is the Earths mantal made of?
rocks.
What interferes with earths satellites?
rocks
What is under the earths core?
ROCKS.(;
