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it is formed from convection currents.

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2w ago

The two main causes for Harry Hess' mid-ocean ridge hypothesis are seafloor spreading and plate tectonics. Seafloor spreading is the process where new oceanic crust is formed at mid-ocean ridges, pushing older crust away. Plate tectonics is the theory that Earth's lithosphere is divided into large plates that move and interact with each other, resulting in geological phenomena like seafloor spreading.

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Q: What are the two main causes for Harry Hess' mid ocean ridge?
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Did harry hess find the mid-ocean ridge?

Yes, Harry Hess proposed the theory of seafloor spreading and the existence of mid-ocean ridges during the 1960s. His work significantly contributed to the development of the theory of plate tectonics.


How did Harry Hess hypothesis explain seafloor spreading?

Harry Hess hypothesized that the sea floor was spreading. He explained it through the phenomena of the youngest rocks that are found only at the mid-ocean ridges. These rocks then, get progressively older when moving away from the ridge.


Who discovered Seafloor Spreading?

Henry H. hess


What process did harry hess discover to make alferd wegners theory more accepted?

He discovered that the ocean floor moves like a conveyor belt, carrying the continents with them. This process begins at the mid-ocean ridge. Old oceanic crust go back to the mantle through trenches and molten material comes out of the mid-ocean ridge, making new crust. Harry Hess called this constant process sea-floor spreading.


Who was Harry Hess?

Harry Hess is a scientist who studied geology and he was born May 27, 1906 and died August 25, 1969 he was born in New York City and he discovered how the first layer of Earth (the crust) forms


What did harry hess propose?

Harry Hess proposed an explanation that tied together data on the age of ocean rocks, sediment thickness, and magnetic striping.


Where can divergent divergent boundary be found?

Most divergent boundaries can be found on the ocean floor. divergent boundaries create Rift Valleys An example of this is the Mid-Atlantic Ridge discovered by Harry Hess.


What evidence did harry hess use to prove sea-floor spreading?

Harry Hess used several pieces of evidence to support his theory of seafloor spreading. This included the symmetrical magnetic striping on either side of mid-ocean ridges, the age of oceanic crust getting progressively older away from the ridges, and the presence of deep-sea trenches suggesting subduction of oceanic crust. These observations provided strong support for the idea that new oceanic crust was forming at mid-ocean ridges and spreading outwards.


How did Harry Hess discover seafloor spreading?

Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.


How did harry hess hypothesis explain seafloor movement?

Harry hess' hypothesis was hot/less dense material rises up the Earth's crust toward the mid-ocean ridges. When the seafloor breaks apart, magma is forced upward and through the cracks. It cools, and becomes a new seafloor. When it moves away from the mid-ocean ridge, it becomes denser and sinks. This helps form ridges.


What was the theory Harry Hess proposed?

he proposed that mid-ocean ridges were areas where the floors of oceans had split apart


Who proposed the theory of seafloor spreading based on maps of the ocean floor?

The theory of seafloor spreading was proposed by Harry Hess, a geologist and Navy officer, in the early 1960s. He proposed that new oceanic crust is formed at mid-ocean ridges and then spreads outward. This theory helped to explain the mechanism behind continental drift and plate tectonics.