The North Atlantic. How can evidence be used to support the theory of continental drift? Fossils of creatures and plants discovered on different continents helped to him push his case that the continents were once locked together before breaking up and drifting away. WebThere is also much climate evidence supporting continental drift, most notable of which is glacial activity. What happens when a continental plate and oceanic plate collide? This indicates that these continents had to be once joined together because the extensive oceans between these land masses act as a type of barrier for fossil transfer. What mountains in Northwestern Europe match up with the Appalachian Mountains in Eastern North America? 4. Vine, F. J. If the continents had remained fixed while the north magnetic pole moved, there must have been two separate north poles. When plates drift away from each other, there is formation of new crust at divergent boundaries. Continental Drift Theory: Understanding Our Changing Earth Modern day representation of the Cynognathus. By 1963, Harry Hess and other scientists used these magnetic reversal patterns to support their model for seafloor spreading [19] (see also Lawrence W. Morley [20]). The findings suggest that sediment lubrication controls the rate at which Earths crust grinds and churns. The discovery of fossils on different continents indicated that the continents were once together before they drifted away. Identifying port numbers for ArcGIS Online Basemap? In particular, very similar types of fossils were found in now far-flung regions of the world. When two continental plates converge, they smash together and create mountains. Continental drift has impacted the universe in many ways. Coats, R. R. Magma type and crustal structure in the Aleutian Arc. This page titled 2.1: Alfred Wegeners Continental Drift Hypothesis is shared under a CC BY-NC-SA license and was authored, remixed, and/or curated by Chris Johnson, Matthew D. Affolter, Paul Inkenbrandt, & Cam Mosher (OpenGeology) . 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