The driver for seafloor spreading in plates with active margins is the weight of the cool dense subducting slabs that pull them along or slab pull.
Theory of seafloor spreading is supported by.
Seafloor spreading is a part of plate tectonics.
Hess its major tenets gave great support to the theory of continental drift continental drift.
First proposed in the early 1960s by the american geologist harry h.
Seafloor spreading theory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwater ridges.
Studies conducted with thermal probes for example indicate that the heat flow through bottom sediments is generally comparable to that through the continents except over the mid ocean ridges where at some sites the heat flow measures three to four times the normal value.
Keeping earth in shape.
In this lesson you will learn about this important.
Seafloor spreading disproves an early part of the theory of continental drift.
This evidence however was also used to support the theory of continental drift.
A veritable legion of evidence supports the seafloor spreading hypothesis.
This evidence was from the investigations of the molten material seafloor drilling radiometric age dating and fossil ages and the magnetic stripes.
Harry hess s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory.
Seafloor spreading proves that the ocean itself is a site of tectonic activity.
Like the scientists before us we will now merge the ideas of continental drift and seafloor spreading into the theory of plate tectonics.
Since then it has been shown that the motion of the continents is linked to seafloor spreading by the theory of plate tectonics.