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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.
Carlee Ferry
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∙ 14y agoHarry 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.
Wiki User
∙ 9y agoHarry 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.
Wiki User
∙ 11y agoHarry Hess used evidence from magnetic stripes and molten material. He also used drilling samples.
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∙ 11y agoHis theory was to figure out what was seafloor spreading
Wiki User
∙ 11y agothe right way
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Who discovered Seafloor Spreading?
Henry H. hess
When did harry hess propose seafloor spreading?
1960 (although Hess' paper built upon Alfred Wegener's theory of continental drift , proposed in 1915).
What three pieces of evidence did Harry Hess gather to prove that seafloor spreading was taking place?
Three evidence that supports Harry Hess theory of Seafloor Spreading is; 1. Paleomagnetism. 2. Plate Tectonics. 3. Polar Wondering and Polar Reversal.
What scientist helped to discover the process of sea floor spreading?
Harry Hess
Who Used sonar to prove sea floor spreading?
Harry Hess
Who discovered Seafloor Spreading?
Henry H. hess
Who proposed the theory of seafloor spreading based on maps of the ocean floor?
The Seafloor Spreading Theory was proposed by Harry Hess.
What was the two discovery Harry Hess?
The Seafloor Spreading Theory
What is the idea that continents have moved horizontally through the seafloor to their current locations?
seafloor spreading by Harry Hess
When and where was seafloor spreading discovereand why is it important?
It was proposed in the 1960s by Harry H. Hess.
Why was the ocean floor surveying conducted by Harry Hess of major geological importance?
Harry Hess helped develop the idea of seafloor spreading.
When did harry hess propose seafloor spreading?
1960 (although Hess' paper built upon Alfred Wegener's theory of continental drift , proposed in 1915).
What three pieces of evidence did Harry Hess gather to prove that seafloor spreading was taking place?
Three evidence that supports Harry Hess theory of Seafloor Spreading is; 1. Paleomagnetism. 2. Plate Tectonics. 3. Polar Wondering and Polar Reversal.
Theory proposed by Harry Hess that includes processes along mid-ocean ridges?
Seafloor spreading.
What scientist helped to discover the process of sea floor spreading?
Harry Hess
When did Hess introduce seafloor spreading?
200 BC
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.
