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The sea floor is older than 200 million years. It has been recycled by plate tectonics. Very old rocks have survived.

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What age is the oldest rocks from the seafloor?

The oldest rock are up to 125 million years old.


How would the age of the oldest rock on the continents compare with the age of the oldest rock on the seafloor?

The sea floor is young (the rocks are made at the mid oceanic ridges and spread out form there) while most of the continental rocks are older. This is because the continental crust floats on top of the oceanic crust and is therefore not recycled.


What do isochron maps of the seafloor indicate?

oldest near ocean ridges


How does the age of seafloor sediments change with increasing distance from the ocean ridge?

Age of seafloor rock and sediment increases with distance from the oceanic ridges.


The oldest rocks on the seafloor are much younger than the oldest rocks on the continents?

The rocks on the seafloor are generally less than 200 million years old due to the process of seafloor spreading and subduction, which recycles old rocks. In contrast, some rocks on the continents can be over 4 billion years old, dating back to the formation of Earth's crust. This difference in age is attributed to the dynamic nature of plate tectonics.


Why is the oldest seafloor crust found farthest from a mid ocean ridge?

Geology


What is the approximate age of the Atlantic Ocean seafloor rocks in million of years?

The seafloor rocks of the Atlantic Ocean are generally around 200 million years old, with the youngest rocks found near the mid-Atlantic ridge, formed by seafloor spreading. As you move away from the ridge, the age of the rocks increases, with some older sections dating back to the Jurassic period. The oldest seafloor rocks are typically found near the continental margins, where they can be over 200 million years old.


What feature on the ocean floor would you most likely find the oldest seafloor?

in a subduction trench, because of Harry Hess' theory of sea floor spreading. Meaning that the rock is formed new at the mid-ocean ridge, and moved out towards the coasts into a subduction zone years and years later.


What is the pattern of seafloor age in the ocean basins?

The pattern of seafloor age in ocean basins generally shows that the youngest seafloor is located at mid-ocean ridges, where new oceanic crust is formed through volcanic activity. As you move away from these ridges, the age of the seafloor increases, with older crust found near the continental margins. This pattern is a result of the process of seafloor spreading, which continuously pushes older crust away from the ridges. Consequently, the age of the seafloor increases symmetrically on either side of the mid-ocean ridges.


Where are you most likely to find the oldest seafloor?

At the base of a continental slope. OR perhaps at the top of a fold mountain.


How does the age of seafloor sediments change the increasing distance from the ocean ridge?

age increases


How does seafloor depth change with age?

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