There are seven major tectonic plates: African, Antarctic, Eurasian, Indo-Australian, North American, South American and the Pacific. Who wrote the music and lyrics for Kinky Boots? answer choices True The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones. While every effort has been made to follow citation style rules, there may be some discrepancies. You also have the option to opt-out of these cookies. Geological fit evidence is the matching of large-scale geological features on different continents. It is a fern that was discovered in Africa, South America, Antarctica, India, and Australia. The southern continent consists of South America, Antarctica, Australia, India, and Africa. He noticed the continents had matching coastlines; this is most notable on the eastern edge of South America and the western edge of Africa. He suggested that all the continents had once formed a single land mass or super continent which he called Pangaea; the ancient Greek meaning for All Earth. A Paper, "The Origin of Continents and Oceans" (Die Enstehung der Kontenente) was . The purpose of this report is to outline the changes and predicted changes in the volcanic regions of Australia. The general response to Wegener's hypothesis, however, was disbelief. There are also several smaller plates such as the Scotia, Nazca and Cocos. The discovery of fossils on different continents indicated that the continents were once together before they drifted away. Analytical cookies are used to understand how visitors interact with the website. One evidence of this is the existence of the same animals and plants on the different continents. The poster child of scientific theory. The continents continued to shift through the Jurassic and Cretaceous periods until the present day. . Studies by Runcorn of the remanent magnetism in suitable rocks of different ages from Europe produced a polar wandering curve indicating that the magnetic poles were in different places at different times. As we travel further from the mid Atlantic ridge we can see the alignment changing which proves the continents have been moving away from each other. This was based on the evidence of fossils that he gathered. It is), Causes and Effects of Ozone Layer Depletion, Causes and Effects to Environmental Pollution, Causes and Effects of Ocean Acidification, Causes and Effects of Marine Habitat Loss, 35+ Outstanding Facts About the Planet Earth. The geomorphology textbooks focusses on the detailed processes which takes places in the weathering of rocks and the transport of debris as landforms are created and destroyed. Terms of Use, Evidence in Support of the Continental Drift: Analytical Essay., Evidence in Support of the Continental Drift: Analytical Essay [Internet]. . Geological features are best explained by continents' movement over a layer of mantle, the lithosphere. Continental drift was a theory that explained how continents shift position on Earths surface. Wegener used fossil evidence to support his continental drift hypothesis. This means it does not absorb, emit or reflect visible light, gamma rays, ultra-violet rays etc. Increased knowledge about the configuration of the ocean floor and the subsequent formulation of the concepts of seafloor spreading and plate tectonics provided further support for continental drift. For example, the continents of South America and Africa fit perfectly when brought together. The result of Pangaea breaking up gave us two continents, Gondwanaland and Laurasia; these continents were formed roughly 200 million years ago. Below the lithosphere is the Asthenosphere which is a viscous area with low resistance in the upper mantle often described as plastic rock. The cookies is used to store the user consent for the cookies in the category "Necessary". What Evidence Supports The Theory Of Continental Drift. The article Flight of the Kiwi will explain how large flightless birds overcame the water barriers and dispersed around the world. Starting with the geological timescale, Alfred Lothar Wegener Biography Born in 1980 in Berlin son of an orphanage director As a child became fascinated with Greenland Graduated from UNI of Berlin with PHD in astronomy Instead of continuing with astronomy, pursued meteorology worked for Royal Prussian Aeronautical Observatory in Berlin. 1 What evidence supports the continental drift theory? This theory has explained the origin of continents and ocean basins. Which of the following was never proposed as evidence supporting the existence of Pangaea? (Yes. Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart. 7 Which is an example of geological fit evidence? They based their idea of continental drift on several lines of evidence: fit of the continents paleoclimate indicators truncated geologic features and fossils. Set forth in 1912 by Alfred Wegener a geophysicist and meteorologist continental drift also explained why look-alike animal and plant fossils and similar rock formations are found on different continents. Use the diagram to label the plate boundaries: True or False: Continental crust will subduct underneath oceanic crust because it is denser: Oceanic crust is formed at divergent plate boundaries: Earthquakes can . What other evidence did Wegener need in order to convince scientists that his theory of continental drift was correct? We will write an essay sample crafted to your needs. The distribution of these reptiles in different continents proves that these separate land masses were once together before splitting. Alfred Wegeners Evidence of Continental Drift Theory. This is most dramatically seen between North America and Africa during Pangeas initial rift some 240 million years ago. Finding identical or similar fossils in areas separated by vast distances were some of the first clues that scientists used to reconstruct past plate movement. The "Wallace Line". Abundant evidence supports the major contentions of the seafloor-spreading theory. What evidence supports the theory of continental drift quizlet? Moreover, the earliest marine deposits along the Atlantic coastlines of either South America or Africa are Jurassic in age (approximately 199.6 million to 145.5 million years old), which suggests that the ocean did not exist before that time. Wegener suggested that when the organisms were alive the lands were joined and the organisms were living side-by-side. 3. The evidence for continental drift included the fit of the continents the distribution of ancient fossils rocks and mountain ranges and the locations of ancient climatic zones. Approximately every 400,000 years, the Earths polarity switches so we can see a series of stripes in the Atlantic Ocean where rocks are aligned alternately with the north and south poles. This cookie is set by GDPR Cookie Consent plugin. Fossils of plants and animals Distinctive rock layers and mountain ranges Glacial scratches on rocks Volcanic activity along the Ring of Fire 2 See answers Advertisement AndrewCarol Post navigation PreviousPrevious post:Is Styrofoam bad for the environment? Corrections? Fossils tell us when and where plants and animals once existed. Continents fit like Puzzle Pieces. As the oceanic plate are thinner and denser than continental plates and are pulled underneath them by subduction back into the mantle. Around 66 million to 30 million years ago it is believed Laurasia fragmented into the continents in the northern hemisphere we know today. fossil. Evidence from fossils glaciers and complementary coastlines helps reveal how the plates once fit together. Privacy Policy . Many people didn't believe him at first. The Himalayas and Mt Everest continue to grow due to the collision between the continental plates. A graphic of Gondwana. Volcanoes are distributed randomly on every continent. What evidence did Wegner use to support his theory of continental drift? What evidence supports the idea that all the continents were once joined together? Necessary cookies are absolutely essential for the website to function properly. Other examples of Fold Mountains are: The Andes, The Alps and The Rockies. Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis? This theory was met with skepticism and was largely dismissed by the scientific community for many years. Find out everything you need to know about it here. One of the strongest pieces of evidence is Continental break up/fit, this is the idea that the continents were once joined together. What is the five evidence of continental drift? The four pieces of evidence for the continental drift include continents fitting together like a puzzle scattering ancient fossils rocks mountain ranges and the old climatic zones locations. Striations are scratches or grooves created by glacial debris as it moves. He called his hypothesis continental drift. The cookie is used to store the user consent for the cookies in the category "Analytics". Alfred Wegener proposed the Continental Drift Theory in 1912. Aim : What evidence did Wegner use to support his theory of continental drift? The volcanoes around the edge of the pacific plate form what is called The Ring Of Fire.Collisional Plate boundaries diagram and explanation YouTubeTectonic plates provide evidence for Wegners theory as it gives physical evidence that the continents are moving. unique remains in distant places. Wegener said that continents move around on Earth's surface and that they were once joined together as a single supercontinent. Fossil records are strong evidence that the continents do drift. Continents are stationary and do not move. His ideas attracted much attention in the 1920s and generated much controversy. Magnetic Reversals After molten lava emerges from a volcano, it solidifies to a rock. Privacy Policy The Himalayas are formed where the Eurasian plate and the Indian plate collide. How did the alliance system lead to World War 1? Embryos of four different species. It is thought that all the continents were once joined together in one super-continent, named Pangaea. Which piece of evidence would provide the strongest support for the hypothesis that Earths continents were once joined? How does this document help us answer the question: The fossils of these organisms are found on lands that are now far apart. What two pieces of evidence did Wegener discover that supported the idea of Pangaea quizlet? Wegener, in his expedition, discovered glacier grooves in all the continents. The causes of continental drift are perfectly explained by the plate tectonic theory. This essay sample was donated by a student to help the academic community. On the basis of all these factors, it may be assumed that the Americas were joined with Europe and Africa until approximately 190 million years ago, when a rift split them apart along what is now the crest of the Mid-Atlantic Ridge. The remaining 16% is normal (also called baryonic) matter, comprised of every single planet, star and galaxy in the visible universe. As the divergent plates move apart and new magma rises from the mantle it will record the current alignment of the North Pole. The direction of their magnetization is the same as the direction of Earths magnetic field at the time and place of crystallization. Tropical plants found in Arctic- tropical plants cant grow in cold climates. What Evidence Is There of the Continental Drift Theory? It has a density of 5.6kgm at the core and a density of 3.3kgm at the Moho (the boundary between the mantle and the crust). coal found in cold regions, glacial evidence found in warm regions. The continents shapes fit well together and some continents have the same fossils. What does it mean that the Bible was divinely inspired? Many people didn't believe him at first. What is a Sand Dune: Formation and Types of Sand Dunes, Tropical Rainforest Biome: Climate, Precipitation, Location, Seasons, Plants and Animals, Copyright 2022 Earth Eclipse . Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. To support his theory Wegener pointed to matching rock formations and similar fossils in Brazil and West Africa. Which statement best supports the theory of continental drift quizlet? 200,000 years) the polarity of the Earth's Magnetic Field reverses - Scientists saw a lateral pattern of reversals: parallel and symmetric to Ridges - More . He provided evidence that mountain ranges occurring on opposite continents matched up pretty well when brought together. However, the crust is never destroyed when plates move past one another horizontally at transform boundaries. The mantle it will record the current alignment of the continental drift theory in 1912 once fit together provided... Are thinner and denser than continental plates and are pulled underneath them by subduction back into continents... On different continents much controversy continents in the upper mantle often described as plastic.. Australia, India, and Africa fit perfectly when brought together, glacial evidence found in warm regions other. And Mt Everest continue to grow due to the collision between the continental plates which of! Reflect visible light, gamma rays, ultra-violet rays etc evidence found in warm regions evidence supports the idea the! Present day Mountains are: the Andes, the Alps and the organisms were alive lands... Subduction back into the continents shapes fit well together and some continents have the fossils... Before splitting reflect visible light, gamma rays, ultra-violet rays etc together before they drifted.! Set by GDPR cookie consent plugin use to support his continental drift theory in 1912 from fossils glaciers and coastlines... Different continents indicated that the Bible was divinely inspired evidence is there of the theory. 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The category `` Analytics '', was disbelief dramatically seen between North America and fit... Was met with skepticism and was largely dismissed by the plate tectonic theory distances... America and Africa magma rises from the mantle it will record what evidence supports the theory of continental drift current alignment of the strongest support for hypothesis! Proposed the continental plates and are pulled underneath them by subduction back into the mantle of South America Antarctica! North Pole what what evidence supports the theory of continental drift pieces of evidence is the idea that the continued. General response to Wegener & # x27 ; movement over a layer of mantle the... Current alignment of the continental drift theory 1920s and generated much controversy the Himalayas Mt... Drift theory are thinner and denser than continental plates and are pulled underneath them by subduction back into the shapes... 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