1960 (although Hess' paper built upon Alfred Wegener's theory of continental drift , proposed in 1915).
Harry Hess was the one who discovered sea floor spreading. He used evidence from Molten Material and Magnetic Stripes. He also used drilling samples.
Harry Hess came up with the theory of sea floor spreading.
In 1962 Harry Hess proposed seafloor spreading as a way to explain the lack of accumulated sediment.
Henry H. hess
Three evidence that supports Harry Hess theory of Seafloor Spreading is; 1. Paleomagnetism. 2. Plate Tectonics. 3. Polar Wondering and Polar Reversal.
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.
Harry Hess
Harry Hess
Henry H. hess
The Seafloor Spreading Theory was proposed by Harry Hess.
The Seafloor Spreading Theory
seafloor spreading by Harry Hess
It was proposed in the 1960s by Harry H. Hess.
Harry Hess helped develop the idea of seafloor spreading.
Three evidence that supports Harry Hess theory of Seafloor Spreading is; 1. Paleomagnetism. 2. Plate Tectonics. 3. Polar Wondering and Polar Reversal.
Seafloor spreading.
200 BC
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.
Harry Hess came up with the theory of seafloor spreading . Alfred Wegener came up with the idea of continental drift NOT 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.