The Sea Floor Spreading Theory Was Proposed By

Seafloor spreading theory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwater ridges.

The sea floor spreading theory was proposed by.

Hess its major tenets gave great support to the theory of continental drift continental drift. The pattern of magnetic strips shows that the seafloor is expanding at mid ocean ridges. Seafloor spreading and other tectonic activity processes are the result of mantle convection. Seafloor spreading was proposed by an american geophysicist harry h.

Hess its major tenets gave great support to the theory of continental drift continental drift. Harry hess princeton university scientist what does seafloor spreading help support. Seafloor spreading is a geologic process in which tectonic plate s large slabs of earth s lithosphere split apart from each other. Naval electronics laboratory in san diego in the 1960s.

Who proposed the theory of seafloor spreading. He also found out that the temperature near to the mid atlantic ridge was warmer than the surface away from it. A mystery solved in 1912 when alfred wegener proposed that the continents had once been joined together and had split apart the biggest weakness in his hypothesis was the lack. First proposed in the early 1960s by the american geologist harry h.

Mantle convection is the slow churn ing motion of earth s mantle. The phenomenon is known today as plate tectonics. What evidence supports hess s theory of seafloor spreading. First proposed in the early 1960s by the american geologist harry h.

By the use of the sonar hess was able to map the ocean floor and discovered the mid atlantic ridge mid ocean ridge. The idea that the seafloor itself moves and also carries the continents with it as it spreads from a central rift axis was proposed by harold hammond hess from princeton university and robert dietz of the u s. The seafloor spreading hypothesis was proposed by the american geophysicist harry h. Theory that new seafloor formed when magma was forced upwards toward surface at mid ocean ridge.

He published his theory in history of ocean basins 1962 and it came to be called seafloor spreading in the early 1960s dating of ocean core samples showed that the ocean floor was younger at the mid atlantic ridge but progressively older in either direction confirming the reality of seafloor spreading. Which statement accurately describes how magnetic stripes in ocean rock provide evidence of seafloor spreading.