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Click on the link below to start learning about plates.

2006-11-20 16:35:34 · answer #1 · answered by gone 7 · 0 0

If the seafloor is spreading it capacity cracks are being created interior the earth's crust under the sea. whilst this occurs, magma comes up from the mantle to fill the cracks. it is the choice of subduction, the place the crust is pushed down into the mantle and melted. Likewise, if the seafloor is spreading, the continents bordering the sea ought to be shifting farther aside. they'd't collide in the event that they are shifting faraway from one yet another. in actuality, seafloor spreading is brought about via continental float, meaning the continental plates shifting around on earth's floor. As 2 continents flow farther aside, the seafloor between them ought to unfold. it is occurring now under the Atlantic Ocean because of the fact the yank continents flow faraway from Europe and Africa.. notwithstanding, because of the fact the continental plates proceed to be style of the comparable length, seafloor spreading on one area ought to be balanced via seafloor contraction on the different area. In different phrases, the Americas won't be in a position to flow faraway from Africa with out shifting nearer to Asia. subsequently, the Pacific Ocean is shrinking, and the introduction of recent crust under the Atlantic is balanced via subduction of crust under the Pacific.

2016-12-17 13:28:39 · answer #2 · answered by salguero 4 · 0 0

Antarctic. See map
http://www.minerals.si.edu/tdpmap/fom/interpretive.htm

2006-11-20 16:07:49 · answer #3 · answered by luka d 5 · 0 0

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