0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What are the steps in the sea floor spreading?
In sea-floor spreading,the sea floor spreads apart along both sides of the mid-ocean ridge as a new crust is added.As a result,the ocean floors move like conveyor belts,carrying the continents along with them.
Rock on the ocean floor provided the final proof of sea -floor spreading with a record of?
Pangaea probably?
What underlies the unconsolidated sediments of the sea floor?
Probably consolidated sediments (sedimentary rock), then the rock basalt.
Rock on the ocean floor provided the final proof of sea floor spreading with a record of?
theory that explains how continents reached their current place
Isochrons on the sea floor are located where?
In the igneous rock composing the oceanic crust.
What happens to the old ocean floor as the sea floor spreads?
As the sea floor spreads, the old ocean floor gets pushed out, which makes the plates move.
What happens to a coral reef if the sea level rises or if the sea floor spreads?
It continues to grow upward
What is the theory that occurs when magma is pushed upward and flows through the openings in the ocean floor?
this usually happens when the sea floor spreads open.
Where is ocean floor created?
The ocean floor is made of relatively young basaltic rock which is pushed up as magma at the mid-oceanic ridges, the place where the sea floor spreads apart.
In the process of sea-floor spreading how does the ocean floor become wider?
New floor forms and spreads from mid-ocean ridges
What is it called when the sea floor spreads out from both sides of a mid ocean ridge and moves towards continents?
sea floor spreading or divergent boudary
Is mid-ocean ridge is how the direction of sea-floor spreading?
It spreads away form the ridges
What forces sea floor spreading?
Sea floor spreading is caused by convection currents in the mantle to cause a divergent boundary underwater. When the divergent boundary spreads, it caues a mid-ocean ridge. This is sea-floor spreading. Hope I helped!
As the ocean floor spreads other parts plunge into the mantle--this process is called?
The first process is called sea-floor spreading (rifting when it happens on land) and the second process is called subduction. Both processes are part of plate tectonics.
How does sea floor spreading make the continents move?
Under the oceanic crust is the layer of the earth called the mantle. This layer is moving rock that is very, very hot! As the hot material in the mantle pushes up through the crust in the sea floor, it cools and becomes new crust as it pushes out (spreads) the sea floor. This movement in the plates causes other plates (continental and oceanic) to move as well. This is how sea floor spreading causes continents to move.
Where does new rock form on the floor?
Forms by lava from volcanoes on the sea floor
What happens at the ridges?
Sea floor spreading
