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What happens to the old ocean floor as the sea floor spreads?
Nyanzaleevcretinon
As the sea floor spreads, the old ocean floor gets pushed out, which makes the plates move.
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∙ 12y ago
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About sea floor spreading?
Sea-floor spreading is what happens when the plates in the earth's crust move apart. During this movement of the plates, magma wells up from deep within the earth and fills in the cracks, forming a new oceanic crust, or sea-floor.
Why is the earth 4.6 billion years old but the oldest sea floor is only 180 millions years old?
Just as new sea floor forms at mid-ocean ridges, new sea floor is forced back into the mantle at abduction zones. The oldest seafloor is at east and west the edges of the Atlantic Ocean, dating to the breakup of Pangaea.
I wonder about the phrase widow's peak as architectural. Some old 1800 and early 1900 homes near the ocean had a look out tower on the top floor over looking the ocean. Is it a widows peak?
What you are referring to is a "widow's walk", a place where one could watch for the return of a ship. A widow's peak is a hair term...the hairline descends to a point near the center of your forehead.
What happens adter old blood moves into the heart?
Oxygen.
How old was Amelia Earhart when she became the first woman to fly across the Atlantic Ocean?
24
What part of the ocean spreads when old crust melts?
mid-ocean ridge
Is the floor near the mid ocean old?
No. The newest ocean floor is at the mid-ocean ridge.
What happens after magma erupts along mid ocean?
The magma spills over the ridge and pushes the old sea floor away toward a subduction zone where the old sea floor melts.
Old ocean floor is destroyed and absorbed by the Earth and remelted beneath what?
When the old ocean floor is destroyed, it goes to Earth's mantle.
What if old rocks are rare are on the ocean floor?
It is believed that old rocks are rare on ocean floors bevause the floor has manny remains and we are not unable to reach them
What happens to magma after it erupts onto the ocean floor?
The magma spills over the ridge and pushes the old sea floor away toward a subduction zone where the old sea floor melts.
Why are the oldest part of the ocean floor no older then about 200 million years old?
The ocean is 4 billion yars old, however due to subduction, the oldest sediment found in the ocean's floor is 180 million years old.
What are the 4 steps of seafloor spreading?
I'm not that sure since I am doing a science assignment on seafloor spreading but, I think I've got a pretty good grasp on 5 stepsMagma pushes up through the Earth's mantle and breaks through the crust.Magma flows outward in the ocean in all directions and hardens to form new ocean floor by the ridge.New ocean floor pushes the old floor away from the mid-ocean ridgeThe old floor then pushes the continents away from the ridgeLastly, the old ocean floor is forced under the continental plate, and melts back into magma.I'm not that sure but, I think I've got a pretty good grasp on 5 stepsMagma pushes up through the Earth's mantle and breaks through the crust.Magma flows outward in the ocean in all directions and hardens to form new ocean floor by the ridge.New ocean floor pushes the old floor away from the mid-ocean ridgeThe old floor then pushes the continents away from the ridgeLastly, the old ocean floor is forced under the continental plate, and melts back into magma.
In sea-floor spreading what happens to the old oceanic crust as new molten material rises from the mantle?
It gets pushed out to either side of the mid-ocean ridge.
How old are the oldest of the ocean floor?
Less than 200 Million years old.
About sea floor spreading?
Sea-floor spreading is what happens when the plates in the earth's crust move apart. During this movement of the plates, magma wells up from deep within the earth and fills in the cracks, forming a new oceanic crust, or sea-floor.
Why do you think that old rocks are rare one ocean floor?
There are no rocks on the ocean floor because they turn to sand. The moving of the water gradually wears away at the rocks.
