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How did science discover the age of the rocks on the ocean floor which are older younger?
Science determined the age of ocean floor rocks primarily through the principles of radiometric dating and seafloor spreading. By analyzing the magnetic properties of rocks, researchers observed that the ocean floor exhibits distinct patterns of magnetism that correspond to periods of magnetic reversal, which allows them to date the rocks based on their distance from mid-ocean ridges. Younger rocks are found closer to these ridges, where new crust is formed, while older rocks are located further away, supporting the theory of plate tectonics and the dynamic nature of the Earth's crust.
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Why are the rocks in they centre of Atlantic ocean floor younger than the rocks found on the eastern or western areas of the Atlantic ocean?
The rocks in the center of the Atlantic Ocean floor are younger because they are formed at mid-ocean ridges through volcanic activity, where tectonic plates are diverging. As magma rises and solidifies at these ridges, it creates new oceanic crust. In contrast, rocks found on the eastern and western margins of the Atlantic Ocean have been subjected to processes such as subduction and erosion, making them older. This process of seafloor spreading continually pushes older rocks away from the ridge, resulting in a younger ocean floor at the center.
Why the crust is thinner than the ocean floor?
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
Why are the Rock's close to a mid-ocean ridge younger than the ones that are farther away?
Mid-ocean ridges are basically underground volcanoes that lava from the Earth's Mantle can breach. The ocean, however, freezes the lava and that in turn forms rock. If this happens repeatedly, then the older rock gets pushed away from the source, and the younger, just formed rock is, therefore, closer to the ridge. So the younger rock being formed by the ridge is pushing away the older, previously made, igneous rock.
Is the floor near the mid ocean old?
No. The newest ocean floor is at the mid-ocean ridge.
Describe why the age of ocean floor is younger near mid-ocean ridges and older near continental boundaries?
The age of the ocean floor is younger near mid-ocean ridges because this is where new oceanic crust is formed through volcanic activity as tectonic plates pull apart. As magma rises and solidifies at these ridges, it creates new seafloor. In contrast, the ocean floor becomes older as it moves away from the ridges towards continental boundaries, where it can eventually be subducted into the mantle or collide with continental plates, recycling older crust. This process of seafloor spreading and subduction explains the age gradient observed in oceanic crust.
What did the submarine Alvin discover on the ocean floor?
hello
Which theory explains why rocks found on the ocean floor are younger than found on continents?
Sea Floor Spreading
Which theory explains why rocks found on the ocean floor are younger than those. Found on continents?
Sea Floor Spreading
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 is the name of the ship that collected rock samples that proved the ocean floor is younger near the mid-ocean ridge?
Glomar challenger
Facts about the ocean floor?
I WANNA KNOW TOOOO. omg i hate science class -_____________-
How do scientists explain older and younger rock placement on the ocean floor?
They measure how far away the rock is from the mid-ocean ridge. The farther, the older.
What sphere is the ocean floor in?
Hydrosphere (Ocean) Lithosphere (Crust and rigid mantle) Source: My memory. (former Earth Science student)
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.
Why are the rocks in they centre of Atlantic ocean floor younger than the rocks found on the eastern or western areas of the Atlantic ocean?
The rocks in the center of the Atlantic Ocean floor are younger because they are formed at mid-ocean ridges through volcanic activity, where tectonic plates are diverging. As magma rises and solidifies at these ridges, it creates new oceanic crust. In contrast, rocks found on the eastern and western margins of the Atlantic Ocean have been subjected to processes such as subduction and erosion, making them older. This process of seafloor spreading continually pushes older rocks away from the ridge, resulting in a younger ocean floor at the center.
How are ocean-floor rocks and sediments evidence of seafloor spreading?
Ocean-floor rocks near mid-ocean ridges show a symmetrical pattern of magnetized stripes parallel to the ridge axis. These stripes result from periodic reversals in Earth's magnetic field and provide evidence of seafloor spreading. Sediments on the ocean floor also show younger ages near the ridges, supporting the idea of seafloor spreading.
Why the crust is thinner than the ocean floor?
The Earth's crust is thinner than the ocean floor because the oceanic crust is formed at mid-ocean ridges where heat from the mantle creates new crust through volcanic activity. This process creates younger, hotter, and thinner crust in the ocean compared to the older and thicker continental crust.
