IMAGINE DRAGONSCARDONA NHAIN, TERAN ANDREA, ROJAS PABLO, AGUIRRE VALENTINA

DRIFTING CONTINENTS

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What are drifting continents???

• Drifting continents are the separation of continents. This occur by the crash of plate tectonics.

INTRODUCCION

• The first truly detailed and comprehensive theory of continental drift was proposed in 1912 by Alfred Wegener, a German meteorologist.

Life of Alfred Wegner

• Alfred Lothar Wegener was born on November 1, 1880 in Berlin, Germany. During his childhood Wegener's father ran an orphanage. Wegener took an interest physical and Earth sciences and studied at universities in both Germany and Austria.

The theory of Alfred Wegener

• In the early 20th century the scientist Alfred Wegener publised a book about landmasses movement and he called that drifting continents.

The theory of Alfred Wegener

• At the beggining, other scientists did not accept Wegener’s theory of continental drift. The plates are always moving and interacting in a process called plate tectonics.

Drifting Continents

• The continents are still moving today. Underwater exploration has revealed seafloor spreading. Seafloor spreading is the process of new crust forming between two plates that are moving apart. As the seafloor grows wider, the continents on opposite sides of the ridges move away from each other.

Drifting Continents

• If you could visit the planet in the future, you would find a part of California separated from North America, becoming an island in the Pacific Ocean. It is even possible that another super continent like pangaea may form someday.

Movement of Drifting Continents

Continental drift is the movement of the Earth's continents relative to each other, thus appearing to "drift" across the ocean bed.

The pangea

• The hypothesis that the continents had once formed a single landmass, called Pangae.

• The hypothetical landmass that existed when all continents were joined, from about 300 to 200 million years ago.

Continents

• A continent is one of several very large landmasses on Earth. They are generally identified by convention rather than any strict criteria, with up to seven regions commonly regarded as continents.

Continental drift

• According to scientistics the world is broken into pieces because the ocean floor is broken more and more every year, and one year will be Ecuador a continent in the future.

Why it produce?

• The reaction to Alfred Wegener's Continental Drift Theory demonstrates that new ideas threaten the establishment, regardless of the century.

Continental drift

• The movement, formation, or re-formation of continents described by the theory of plate tectonics.

• Geology the lateral movement of continents resulting from the motion of crustal plates.

Ideas

• His ideas were largely ignored at the time they were developed but today they are very well accepted by the scientific community.

• Wegener also took an interest in meteorology and paleoclimatology (the study of changes to the Earth's climate throughout its history.)