What did Robert S Dietz discover?

What did Robert S Dietz discover?

Dietz’s discovery in 1952 of the first fracture zone in the Pacific, which he related to deformation of the Earth’s crust, led him to hypothesize that new crustal material is formed at oceanic ridges and spreads outward at a rate of several centimetres per year. Subsequent work confirmed this suggestion.

What is the suggested explanation of Harry Hess and Robert Dietz to the continental drift theory?

Hess and Robert S. Dietz suggested that new ocean crust was formed along mid-oceanic ridges between separating continents; and second, Drummond H. Matthews and Frederick J.

Who discovered seafloor spreading?

Harry Hess
Harry Hess: One of the Discoverers of Seafloor Spreading.

Who are Harry Hess and Robert Dietz?

Dietz, born in Westfield, New Jersey, was a marine geologist, geophysicist and oceanographer who conducted pioneering research along with Harry Hammond Hess concerning seafloor spreading, published as early as 1960–1961.

What two discoveries did Robert Dietz?

In 1952 , Dietz, along with Menard, discovered fracture zones in the Pacific Ocean floor which led to his ideas about sea floor spreading. Image of the Pacific Fracture zones 2. The sea floor, based on fossil evidence, was much younger (Cretaceous as opposed to Cambrian) than the continents.

How did Hess and Dietz explain the continents move?

Hess thought that fracture zones were unrelated to the mid-ocean ridges; Dietz, meanwhile believed that the fracture zones were a result of uneven convection motion in the mantle thereby moving parts of the ocean floor at different rates. There were few sediments on the sea floor compared with the continents.

How did Frederick vine support Wegener’s theory?

With his supervisor at Cambridge, Drummond Matthews (1931–1997), Vine did crucial work on the process of seafloor spreading. The German scientist Alfred Wegener (1880–1930) proposed in 1915 that there had once been a super-continent, which he named Pangaea, that had slowly moved apart.

Why did the lithospheric plates move?

Plates at our planet’s surface move because of the intense heat in the Earth’s core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.

What did Robert Dietz think about fracture zones?

Hess thought that fracture zones were unrelated to the mid-ocean ridges; Dietz, meanwhile believed that the fracture zones were a result of uneven convection motion in the mantle thereby moving parts of the ocean floor at different rates.

What did Robert Sinclair Dietz contribute to science?

Widely known for pioneering contributions to the geology of the seafloor and to geological aspects of the theory of plate tectonics, Dietz also made important scientific contributions to the recognition of impact structures, particularly of ancient, eroded impact scars on Earth, which he named astroblemes (star wounds).

Where did Robert s.dietz go to college?

Dietz was educated at the University of Illinois where he received his BS., MS. and Ph.D. in Geology.

When did Robert Dietz discover the Pacific Ocean floor?

In 1952 , Dietz, along with Menard, discovered fracture zones in the Pacific Ocean floor which led to his ideas about sea floor spreading. The sea floor, based on fossil evidence, was much younger (Cretaceous as opposed to Cambrian) than the continents.