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How do ocean ridges and deep-sea trenches support the theory of sea floor spreading?
Ocean ridges and deep-sea trenches support the theory of sea floor spreading through the process of plate tectonics. At ocean ridges, new oceanic crust is formed as magma rises and solidifies, pushing the existing crust apart. Deep-sea trenches are areas where old oceanic crust is being subducted back into the mantle, completing the cycle of sea floor spreading. This continuous movement of crust at ridges and trenches provides evidence for the theory of sea floor spreading and the movement of tectonic plates.
In 1960 harry hess proposed the theory of?
sea floor spreading. that the sea floor was spreading and there for pushing the continents .he continued studying Alfred Wegener's theory and became more knowledgeable about then started gathering information to prove the theory and did
What three types of evidence provided support for the theory of sea-floor spreading?
The discovery of mid-ocean ridges, where new oceanic crust is formed, supported the theory of sea-floor spreading. The mapping of magnetic stripes on the ocean floor, showing alternating patterns of magnetic polarity, provided further evidence for sea-floor spreading. The age of the oceanic crust getting progressively younger away from the mid-ocean ridges supported the concept of sea-floor spreading.
Who were the two scientists who proposed the theory of sea floor spreading in the early 1960's?
The two scientists who proposed the theory of sea floor spreading in the early 1960s were Harry Hess and Robert Dietz. They presented the idea that new oceanic crust is formed at mid-ocean ridges and then moves away from the ridges, eventually sinking back into the mantle at subduction zones.
Who Used sonar to prove sea floor spreading?
The researchers who used sonar to provide the first detailed evidence of sea floor spreading were Bruce Heezen and Marie Tharp in the early 1950s. Tharp's mapping of the Atlantic Ocean floor using sonar revealed the presence of the Mid-Atlantic Ridge and provided crucial support for the theory of plate tectonics.
Who had the theory of sea floor spreading?
Harry Hess came up with the theory of seafloor spreading . Alfred Wegener came up with the idea of continental drift NOT sea-floor spreading.
Who had the sea floor spreading theory?
Harry Hess came up with the theory of seafloor spreading . Alfred Wegener came up with the idea of continental drift NOT sea-floor spreading.
What are examples of the theory of plate tectonics?
Sea floor spreading
How many is the Earth's crust divided into?
Sea floor spreading theory
What magnetic reversals help support?
the theory of sea-floor spreading
What theory combined sea floor spreading and continental drift?
Plate Tectonics
What provides the most evidence for the theory of plates tectonic?
The spreading of the sea floor.
The earth's crust is divided into how many plates?
Sea floor spreading theory
What contribution did hess make to science?
He propounded the Sea-floor Spreading Theory.
What three pieces of evidence for Wegener's theory came from the sea floor?
seafloor spreading, age of the sea floor and ocean trenches.
What are the similarities of the continental drift theory sea floor spreading and the plate tectonics theory?
the similarities of this 3 theory is,,,, they are all theory....
What was Robert Dietz contribution to the tectonic theory?
he as the one who crated the sea floor spreading
