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How is the orientation of Earth's magnetism recorded in rocks on the ocean floor?
Wiki User
∙ 14y ago
Earths magnetic orientation is locked into the rock when the rock cools
Carlo Kiehn
Juliet Olson
Earths magnetic orientation is locked into the rock when the rock cools
Paul Wyman
Earths magnetic orientation is locked into the rock when the rock cools
Kevin Greenfelder
Earths magnetic orientation is locked into the rock when the rock cools
Wiki User
∙ 14y agoEarth's magnetic orientation is locked into the rock when the rock cools
Wiki User
∙ 10y agoEarths magnetic orientation is locked into the rock when the rock cools
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Continents and the ocean floor are part of earths solid rocky surface called?
crust
What is the moving portion of earths crust and upper mantle?
a moving portion of earths crust and upper mantle is called a ridge that's when the ocean floor has underwater volcano that erupts
Describe how the polarity of earth's magnetic field is recorded in the sea-floor?
The polarity of the Earth's magnetic field is recorded in igneous rocks, and reversals.
What are the four major components of the earths crust?
hydrosphere sedimentary rock basalt ocean floor granite foundation
What do scientist use to study earths interior?
sea floor spreading :D-3
How a prediction and then evidence of magnetism in rocks on the ocean floor proved that the seafloor spreads?
The Earth's magnetic reversals have been recorded in newly forming oceanic seafloor basalt by the orientation of magnetic minerals which become frozen in place as the magma hardens. When the next reversal occurs, it as well becomes part of the ocean floor magnetic record.
How does paleomagnetism provide support for the idea of sea floor spreading?
Rocks that are found at on the sea floor of the Earth differ in magnetizations. Using paleomagnetism, these rocks were known to have preserved an imprint of the changes in the earths magnetism over long periods of geological time, which proved the theory of sea floor spreading.
What kinds of magnetism did scientists finds while studying the ocean floor?
While studying the ocean floor, scientists found alternating bands of magnetism. Each band is magnetized with a polarity that is opposite the surrounding bands.
What did scientist discovere when they analyzed the magnetic bands on the ocean floor?
Scientists found Alternating bands of magnetism.
What effect do sea floor and subduction have on earths surface?
They both can change the size of Earths Surface
What moves the ocean floor?
the tectonic plates under the earths surface
Is it true that the magnetism of the rocks along the ocean floor is consistent in that there is no reversal of polarity?
The rocks of the ocean floor are not consistent and do show past reversal of polarity. The statement in the question is false.
What is the outcome of Bermuda triangle?
The reason why compasses and GPS navigation's have lost their sense of orientation is because the ocean floor is made of magnetic rock which disturbs the compass' orientation.
What ocean floor feature is formed by movement of earths plate?
what other ocean floor feature is fromed by movement of earth's plates
Describe how magnetism is used to support the theory of seafloor spreading?
New material is added to the sea floor when sea floor spreading occurs. When the iron cools it is magnetized by the magnetic field of the earth.
What do strips of low intensity magnetism represent on the ocean floor?
it represents the fact that the magnetic poles of the Earth must "flip" from time to time - the iron in the magma that cools to become the ocean floor aligns with the poles so stripping would show that the poles have changed direction over time. Some scientists suggest the times when the poles "flip" match up with cataclysmic events in the Earths geologic history.
What do strips of low-intensity magnetism represent on the ocean floor?
it represents the fact that the magnetic poles of the Earth must "flip" from time to time - the iron in the magma that cools to become the ocean floor aligns with the poles so stripping would show that the poles have changed direction over time. Some scientists suggest the times when the poles "flip" match up with cataclysmic events in the Earths geologic history.
