Radiometric dating oceanic crust

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Examples include evidence of the ages oceanic crust increasing with distance from mid-ocean ridges a result of plate spreading and the ages of North American continental crust increasing with distance away from a central ancient core a result of past plate interactions. The oceanic crust is younger than the continental crust, rarely reaching Deep ocean drilling and radiometric dating in the late s gave an. This is because concentrations of elements such as Uranium URubidium Rband Potassium K are too low in such mafic rocks.

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Oceanic crust is about 6 km 4 miles thick. At that age the crust has finished cooling and has reached abyssal plain Radiometric dating--this gives the age of igneous and metamorphic. Post a Comment.

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All rights reserved. Oceanic crust, the outermost layer of Earth's lithosphere that is found under the . the crustal material include direct dating of rock samples by radiometric dating. The youngest crust of the ocean floor can be found near the seafloor spreading centers or mid-ocean ridges.

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Scientists can determine the age of the seafloor thanks to the changing magnetic field of our planet. This has happened many times throughout Earth's history. When scientists studied the magnetic properties of the seafloor, they discovered normal and reversed magnetic stripes with different widths.

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Examples include evidence of the ages oceanic crust increasing with distance from mid-ocean ridges (a result of plate spreading) and the Radiometric dating.

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New evidence 2: Radiometric dating. • Maximum age of crust: – Oceanic crust: million years. – Continental: ~4 billion years. • Why??.

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Although uranium occurs only in trace concentrations in the oceanic crust, it is, by reason of of ocean floor spreading through radiometric dating. Before

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It turns out that magma has two sources, ocean plates and material from the continents (crustal rock). This fact has profound implications for radiometric dating.

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