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.

What did Robert S. Dietz call Hess’s idea?

Thus it should not be surprising that he and Harry Hammond Hess independently arrived at the idea of seafloor spreading (Dietz’s term) in the early 1960s.

Who introduced the theory of plate tectonic?

meteorologist Alfred Wegener
German meteorologist Alfred Wegener is often credited as the first to develop a theory of plate tectonics, in the form of continental drift.

During what year does Robert Dietz and Henry Hess explained the continental drift theory?

The seafloor spreading hypothesis was proposed by the American geophysicist Harry H. Hess in 1960.

What 2 discoveries did Robert Dietz find why were his discoveries important?

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.

What is the theory of plate tectonics helps explain which of the following?

The theory of plate tectonics explains most of the features of Earth’s surface. It explains why earthquakes, volcanoes and mountain ranges are where they are. It explains where to find some mineral resources. Plate tectonics is the key that unlocks many of the mysteries of our amazing planet.

What did Hess suggest was causing the motion of the seafloor?

In this paper, Hess, drawing on Holmes’s model of convective flow in the mantle, suggested that the oceanic ridges were the surface expressions of rising and diverging convective mantle flow, while trenches and Wadati-Benioff zones, with their associated island arcs, marked descending limbs.

What is the cause of plate tectonics?

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth’s mantle. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth’s crust.

What results when the the Arabian plate and the African plate moved away from each other?

The Arabian Plate is rifting away from the African plate along an active divergent ridge system, to form the Red Sea and Gulf of Aden. New ocean lithosphere may form along the centre of the rift, producing a new narrow ocean basin with its own mid ocean ridge.

Why did the lithospheric plates move?

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth’s mantle and fit snugly against one another. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other.

What is it called when plates move towards each other?

Convergent boundaries
Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries.

Who is Robert Dietz?

Robert S. Dietz was an American Geologist who was known for his substantial contributions to and for the promotion of Theory of Plate Tectonics. Dietz was born in Westfield, NJ on September 14, 1941 and died in Tempe, Arizona in 1995. Dietz was educated at the University of Illinois where he received his BS., MS. and Ph.D. in Geology.

What did Dietz contribute to geology?

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).

What did Robert Dietz discover about oceanic crust?

Robert S. Dietz. 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.

How did Dietz feel about the theory of continental drift?

Dietz felt that the merit in the theory that both he and Hess proposed was its ability to explain a plausible mechanism to support Continental Drift.