On average, continents are older than ocean basins. Due to the action of plate tectonics, ocean crust is being formed and destroyed continuously. The oldest oceanic crust is about 200 million years old, whereas continents, which are less dense than oceanic crust and tend not to be subducted into the mantle, can be more than 3,000 million years old in places.
The oldest rocks on the continents would be much older than the rocks on the sea floor because the rocks on the continents are not being removed unlike the rocks on the sea floor that are made by the mid-ocean ridge are being removed by deep ocean trenches. this prossess that is occuring on the sea floor is called sea floor spreading. evidence of this is the Pacific ocean shrinking and the Atlantic ocean growing.
The continents and the ocean floor rest upon the plates.
As it turns out, most of the ocean floor is basalt, and most of the continents are granite.
The continents and ocean floor are unstable because the plates of the lithosphere move. When the plate move, they cause the continents and ocean floor to move.
The ocean floor is located on the Earth's outermost layer called the crust. It is part of the crust that is covered by water, forming the ocean basins.
Earth's crust is composed of the continents and the ocean floor.
The oldest rocks on the continents would be much older than the rocks on the sea floor because the rocks on the continents are not being removed unlike the rocks on the sea floor that are made by the mid-ocean ridge are being removed by deep ocean trenches. this prossess that is occuring on the sea floor is called sea floor spreading. evidence of this is the Pacific ocean shrinking and the Atlantic ocean growing.
Tectonic Plates can't carry both ocean floor and continents on the same plate.
The continents and the ocean floor rest upon the plates.
They do touch the ocean floor. they're like a giant mound, and the beaches flow into the water.
The crust.
As it turns out, most of the ocean floor is basalt, and most of the continents are granite.
The oceanic crust of the Atlantic Ocean floor is attached to the continental crust of the continents around the ocean. So as the Atlantic's Ocean floor spreads, the continents along its edges also move. Over time, the whole ocean gets wider.
Ocean-floor spreading.
the ocean sea floor is spreading
The continents and ocean floor are unstable because the plates of the lithosphere move. When the plate move, they cause the continents and ocean floor to move.
true. only one of them can be moved at one time