What is Wegener's hypothesis on the continental drift theory?

1944 Wegener's theory was consistently championed throughout the 1930s and 1940s by Arthur Holmes, an eminent British geologist and geomorphologist. Holmes had performed the first uranium-lead radiometric dating to measure the age of a rock during his graduate studies, and furthered the newly created discipline of geochronology through his renowned book . Importantly, his second famous book did not follow the traditional viewpoints and concluded with a chapter describing continental drift.

Theory of Continental Drift | Physical Geography

The continents of Australia and Antarctica are way apart from the other continents.

Wegener's theory of continental drift

According to the theory, two major landmasses were formed from the drifting process.

A single landmass called Laurasia, consisting of present day North America, Europe and Asia, was located in the north.

To the south, there was the other landmass, which was called Gondwanaland.

Continental Drift: Theory & Definition - Live Science

Theory states that the Pacific ocean was on the western coast of this supercontinent, while the Tethys ocean was on the Eastern coast.

The drifting process might have started around this time.

This 16th century Flemish geographer stated that the continents of North and South America were

Alfred Wegener's theory of continental drift

The German meteorologist Alfred Wegener (1880-1930) is largely credited with establishing the fundamentals of the theory that we now call plate tectonics. The idea that continents may have originally occupied different positions was not a new one (), but Wegener was the first to present the evidence in a diligent and scientific manner.

What was Wegener's evidence for continental drift

The remarkable notion that the continents have been constantly broken apart and reassembled throughout Earth's history is now widely accepted. The greatest revolution in 20th century understanding of how our planet works, known as plate tectonics, happened in the 1960s, and has been so profound that it can be likened to the huge advances in physics that followed Einstein's theory of relativity. According to the theory of plate tectonics, the Earth's surface is divided into rigid plates of continental and oceanic lithosphere that, through time, move relative to each other, and which increase or decrease in area. The growth, destruction and movement of these lithospheric plates are the major topics of this course, but it is first worth considering how the theory actually developed from its beginnings as an earlier idea of 'continental drift'.

It is difficult to predict the exact shape and outline of the previous supercontinents.

Alfred Wegener’s Continental Drift Hypothesis | Deskarati

Continental drift was hotly debated off and on for decades following Wegener'sdeath before it was largely dismissed as being eccentric, preposterous,and improbable.

Continental Drift Theory

Continental Drift Theory | Continent | Earth Sciences

Alfred Wegener brought together several lines of evidence to support his theory of continental drift. One is quite simple -- that the continents look like they could "fit" together, much like puzzle pieces that have drifted apart. Then, he noticed that when you put the continental puzzle pieces back together, other things started to fit. For example, the rock layers that form the Appalachian mountains of the eastern U.S. matched quite well with those in Scotland. Fossils found on the east coast of Brazil match quite nicely with fossils found in western South Africa. Also, he noticed that a lot of the fossilized life found in the rock record didn't fit in the climates they were found in. For example, rocks in Alaska contain fossil palm tree leaves, though there have not been palm trees at that latitude for a very long time! Thus, he concluded that the continents must 'drift' around the Earth, occasionally colliding with one another. Though his ideas were not popular at the time, they were the foundation of one of the greatest scientific revolutions in history!

Alfred Wegener's Continental Drift Theory Evidence thatProved Continental Drift Question 2 What is our current understanding of Continental Drift?

NOT collected by Wegener to support his continental drift hypothesis

1858 Antonio Snider-Pellegrini suggested that continents were linked during the Carboniferous Period, because plant fossils in coal-bearing strata of that age were so similar in both Europe and North America.