T he E vidence F or C ontinental Drift Tyler Young Amesbury 4 th Sep 21 2015 Alfred Wegener Alfred Lothar Wegener nov 1 1880 1930 was a German polar researcher geophysicist and meteorologist ID: 671495
Download Presentation The PPT/PDF document "Alfred Wegener, Pangea, And" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Alfred Wegener, Pangea, And The Evidence For Continental Drift.
Tyler Young
Amesbury 4
th
Sep. 21, 2015Slide2
Alfred Wegener Alfred Lothar Wegener (nov, 1, 1880
-
1930) was a German polar researcher, geophysicist and meteorologist.
He is most remembered as the original theorist of the theory of continental drift by hypothesizing that the continents are slowly drifting around the Earth.
His theory was disproved due to his “non-popularity” and the scientists that had disproved him were some of the greatest geophysical minds of the century.Slide3Slide4
Pangea Pangea is the theory that all the continents were once (millions of years ago) all perfectly put together as one giant land mass and after millions of more years they had separated and detached from each other.Pangea cant exactly be “proved” but the theories strong point is that all the continents seem to fit to each other like a puzzle piece.
Other points to the theory were the fossils from millions of years old animals, rocks, insects, etc. found on complete opposite sides of the world and if it weren’t for Pangea these fossils would have to swim thousands of miles across oceans and seas and that seems unlikely.Slide5Slide6
Evidence of Continental Drift As stated before the theory of continental drift has strong points of evidence one being the physical feature, how all of the continents, for the most part, fit together like puzzle pieces for example, Africa and
S
outh America.
For example, the rock layers that form the Appalachian mountains of the Eastern U.S. matched with those in Scotland. Rocks in Alaska contain fossil palm tree leaves, though there have not been palm trees at that area for a very long time so, he stated that the continents must “drift” around the Earth, sometimes colliding with each other.Slide7
Convection, Conduction, and Radiation During convection magma rises and spreads the sea floor. At the boundary between the plates, the ocean floor sinks, but at the same time is pushing against the continents. At the plates move, most of the geological structures and events we are familiar with occur, including earthquakes and volcanoes. Plate tectonics a major theory explaining the way our planet operates and moves aboutSlide8