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What evidence in rocks supports the seafloor spreading hypothesis?
Wiki User
∙ 12y ago
Magnetite, a mineral found in basalt, the rock that makes up the sea floor, has particles in it which align themselves with the polar alignment of the earth (North and South). Every once in a while, in Earth's history, the polar alignment switches (North becomes South, South becomes North) and so do the magnetite particles. Thus, there are matching bands on each side of a spreading center where the magnetite has switched as the rock came out of the spreading center.
Wiki User
∙ 12y ago
Wiki User
∙ 6y agoTheory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwater ridges.
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What is the main evidence that supports the geologic time scale?
Measured rates of erosion.
What evidence supports the theory of plate tectonics?
The shape of the continents, the distribution of earthquakes, the symmetric magnetic banding of the sea floor ether side of the mid oceanic ridges, the mid oceanic ridges, back arc basins, deep sea trenches, the fiery ring of the Pacific, The distribution and chemistry of volcanoes, atolls, paleo magnetism, fossil evidence and the distribution of species. (there may be more evidence).
What layer supports the existence of life?
the troposphere supports the life.
What evidence supports the conclusion that Earth has a hot core?
One could even theorize that the enormous weight of all the soil and rock of the layers of the earth would create such great friction that a tremendous amount of heat would be the result. Melting all the matter of the earth's core. The eruption of a volcano could be evidence of this "melted earth" eventually spewing to the surface, once the built up steam and pressure of this phenomenon is finally released.
Whats is the part of the regolith that supports the growth of plants?
soil - is a combination of mineral and organic matter, water, and air-- that portion of the regolith that supports the growth of plants. (right from my text book)
What evidence in rocks supports the theory seafloor spreading?
Convergence supports the theory of seafloor spreading. Samples of the deep ocean floor are evidence of seafloor spreading because the basaltic oceanic crust and overlapping sediment become younger as the mid-ocean ridge is approached. Also, the rock that makes up the floor of the ocean is younger than the continents.
What evidence in rock supports the theory of seafloor spreading?
Convergence supports the theory of seafloor spreading. Samples of the deep ocean floor are evidence of seafloor spreading because the basaltic oceanic crust and overlapping sediment become younger as the mid-ocean ridge is approached. Also, the rock that makes up the floor of the ocean is younger than the continents.
What evidence supports his hypothesis?
The evidence that supports wegeners hypothesis is the fossil evidence
What three pieces of evidence did Harry Hess gather to prove that seafloor spreading was taking place?
Three evidence that supports Harry Hess theory of Seafloor Spreading is; 1. Paleomagnetism. 2. Plate Tectonics. 3. Polar Wondering and Polar Reversal.
How the evidence from a data table supports a hypothesis?
The evidence from a data table supports a hypotheis is i dont know.
What is the circumstantial evidence that supports the hypothesis that high fructose corn syrup is harmful to humans?
The circumstantial evidence that supports that hypothesis that high fructose corn syrup is harmful to humans is the fact that obesity is so high. The instances of diabetes is another piece of circumstantial evidence that supports this.
Explain how an isochron map of the ocean floor supports the theory of seafloor spreading?
An isochron is a line on a map that connects points that have the same age. An isochron map of the ocean floor supports the theory of seafloor spreading because it shows the older rock near the deep sea trenches and the younger rocks near ocean ridges.
What evidence supports the hypothesis that whales were land dwelling mammals?
they had hip bones
What evidence supports the hypothesis that whales evolved from land-dwlling mammals?
Theory of evolution
What evidence supports wegener's hypothesis?
All of the continents fit together like a puzzle.
What evidence supports the hypothesis of continental drift?
Continental drift is a hypothesis so there is no actual proof or evidence of it, but rather opinions and views suggesting the possibility of it.
What evidence in rocks supports the seafloor hypothesis?
Magnetite, a mineral found in basalt, the rock that makes up the sea floor, has particles in it which align themselves with the polar alignment of the earth (North and South). Every once in a while, in Earth's history, the polar alignment switches (North becomes South, South becomes North) and so do the magnetite particles. Thus, there are matching bands on each side of a spreading center where the magnetite has switched as the rock came out of the spreading center.
