Magnetism in rocks can also be used as evidence for the continental drift. 3 Which is evidence supporting the theory of continental drift? Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. If you take a look at the map before the continents drifted away, you find that Mesosaurus is located in the southern parts of Africa and North America. To support his theory, Wegener pointed to matching rock formations and similar fossils in Brazil and West Africa. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. We will write an essay sample crafted to your needs. Today, the theory of continental drift has been replaced by the science of plate tectonics.The theory of continental drift is most associated with the scientist Alfred Wegener.In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were . Heat coming from the interior of the earth triggers this movement to occur through convection currents inside the mantle. (It doesnt.) This website uses cookies to improve your experience while you navigate through the website. Alfred Wegener is credited with developing the continental drift hypothesis. How did Alfred Wegener come up with the idea of continental drift? What are the 5 evidences of continental drift? Corrections? Also, the article explores the idea of if the Kiwi bird came first or the egg. tobi brown girlfriend; ancient map of sarkoris pathfinder; reno sparks nv obituaries; como sacar una culebra de su escondite Its, therefore, impossible that the seeds of the fern were blown by wind or floated across the ocean to have that kind of population on these 5 continents. There are also several smaller plates such as the Scotia, Nazca and Cocos. What is the five evidence of continental drift? 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. What did Alfred Wegener use as evidence for his theory that the continents were once one giant land mass quizlet? Fossils are the stongest evidences of plate tectonics. Which is evidence supporting the theory of continental drift? Ex. We use cookies to ensure that we give you the best experience on our website. They based their idea of continental drift on several lines of evidence: fit of the continents paleoclimate indicators truncated geologic features and fossils. Answer 5: Fossils are formed when living organisms (plants or animals) die and become buried in dirt, sand or mud. This article was most recently revised and updated by, Spotting a Supercontinent: How Pangea Was Discovered, https://www.britannica.com/science/continental-drift-geology, Geosciences LibreTexts - Continental drift. So, technically, the creature would not have traveled through the ocean to get to the next continent. Continental drift is defined as the motion of the earth's continents over a defined period of time. Which two pieces of fossil evidence supports the idea of continental drift? One indication of this possibility is the appearance of the western African and eastern South American coasts, which look like two interlocking jigsaw puzzle pieces. 2022 Sept 27 [cited 2023 Mar 1]. coal found in cold regions, glacial evidence found in warm regions. Noting the apparent fit of the bulge of eastern South America into the bight of Africa, the German naturalist Alexander von Humboldt theorized about 1800 that the lands bordering the Atlantic Ocean had once been joined. 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. What evidence did Wegner use to support his theory of continental drift? Wegener suggested that when the organisms were alive the lands were joined and the organisms were living side-by-side. However, further work showed that the polar wandering curves are different for the various continents. One of the clues he used was the glacier. Over time, the landmass broke and drifted away and is still drifting to this day. Late in the Triassic Period (which lasted from approximately 251 million to 199.6 million years ago), Pangea fragmented, and the parts began to move away from one another. Wegner also noticed that rocks and mountain ranges across continents looked similar and were similar ages, the belt of ancient rocks of 2,000 million years ago from the Brazilian coast matches with those from western Africa he also noticed that there were similar geological sequences in eastern Canada and Scotland. Similar fossils were found on different continents. Wegener used fossil evidence to support his continental drift hypothesis. For example, fossils of Mesosaurus, a freshwater reptile, have been found both in Brazil and western Africa. THE CONTINENTAL DRIFT THEORY EVIDENCES AND EXAMPLES. The striations found on the southern continents all radiate from the center of the south part of Pangaea. 2 What are some of the major pieces of evidence for the theory of plate tectonics? . What are the four pieces of evidence for continental drift quizlet? When plates drift away from each other, there is formation of new crust at divergent boundaries. As the divergent plates move apart and new magma rises from the mantle it will record the current alignment of the North Pole. Embryos of four different species. Ultimately, Africa has a beautiful context of life and history behind its luscious trees. The cookie is used to store the user consent for the cookies in the category "Analytics". What was probably the first evidence that led some to suspect the continents were once connected? This cookie is set by GDPR Cookie Consent plugin. This essay is available online and was probably used by another student. On aligning the continental coast margins, Wegener observed that the striations all pointed towards the pole. If these continents were once united around the south polar region, this glaciation would become explicable as a unified sequence of events in time and space. 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. The global inspection reveals an imbalance of areas of lands and sea and almost infinite variation of shapes which illustrates the continental and oceanic areas. It suggested that those land areas had in the past been connected. 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. Do now: Draw a convection current and explain why this happens? 3. Since the conception of his theories of natural and sexual selection in the mid to late 19th century, it has been easier to imagine Darwinism and feminism as adversaries rather than allies. Fossils. 3. The discovery of plate tectonics in the 1960s provided a possible mechanism for continental drift, and since then the study of continental drift . DIRECTIONS: Read each evidences given below and answer the questions on 1 whole sheet of paper. Fossils tell us when and where plants and animals once existed. The advancement and knowledge on the plate tectonics theory was a very important asset to biogeography, it provided a foundation for our understanding of our ever-evolving planet. What Is N For The Following Equation In Relating Kc To Kp? Wegener, in his expedition, discovered glacier grooves in all the continents. Over time the continents change position relative to one another as they move. First samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached and the sediment cover is thinner near the ridge. Another important piece of evidence in the Continental Drift theory is the fossil relevance. Blackett, and others. Which does not support the theory of continental drift? Where this is the case, the lithospheric plates separate, and the upwelling mantle material forms new ocean floor along the trailing edges. The general response to Wegener's hypothesis, however, was disbelief. 1 What evidence supports the continental drift theory? Dark Matter accounts for 84% of all the matter in the universe. The following are the evidence of continental drift theory: The Matching of Continents: The shorelines of Africa and South America facing each other have a remarkable and unmistakable match. According to the latter hypothesis, Earths surface, or lithosphere, is composed of a number of large, rigid plates that float on a soft (presumably partially molten) layer of the mantle known as the asthenosphere. Was the United States justified in going to war with Mexico. 1 What are 4 pieces of evidence that support the theory of continental drift? Fossils - certain fossils preserved in rocks of the same age but from different continents. Specific interpretations in Darwins theories of evolution pose challenges to modes of proceeding within feminist critique. What are some of the major pieces of evidence for the theory of plate tectonics? The Fossil Record. This cookie is set by GDPR Cookie Consent plugin. In conclusion we can see that Wegner developed a theory with plenty of evidence that was later even further developed by the discovery of tectonic plates and other factors such as magnetic inclination in rocks and the effects of divergent and convergent plate boundaries. Fossil EvidenceSee also how to tell which nitrogen is most basic Fossils of similar types of plants and animals in rocks of a similar age have been found on the shores of different continents suggesting that the continents were once joined. What is evidence use to prove continental drift? Well, this claim was made in the 90s by Alfred Wegener, a German polar researcher, meteorologist and geophysicist who died in 1930. According to the Lystrosaurus and Cygnognathus body anatomy, they are not designed for swimming. none of the above. Which means Antarctica must have had a much warmer climate at one point, supporting Wegners theory of Continental drift. 4 What are 5 pieces of evidence of continental drift? 116 The central dogma of biology. Oceanic ridges occur along some of the plate margins. Source: www.slideserve.com. What evidence supports the idea that all the continents were once joined together quizlet? This cookie is set by GDPR Cookie Consent plugin. Cygnognathus is Fossil from another species of reptile. Find out everything you need to know about it here. Holmes' theories have continued to be . Mesosaurus - small fresh water reptile. What evidence indicated scientists that the continents were once connected? what two pieces of evidence did wegener discover that supported the idea of Pangaea? The Mesosaurs would not have been able to swim across the ocean due to the fact they are freshwater creatures (and the vast distance between continents), so the mesosaurs at some point must have been able to walk across the continents. Which of the following was not a line of evidence used to support the hypothesis of continental drift? Oceanic plates are thinner and found under the ocean, they are denser (3.0kgm) than continental plates and consist of basaltic rock. Particles of magnetized minerals released from their parent igneous rocks by weathering may later realign themselves with the existing magnetic field at the time these particles are incorporated into sedimentary deposits. But about 200 million years ago, the land started to drift apart and broke into two pieces. Essay Service Examples Science Continental Drift. Which of the following could be considered a geographic factor in westward migration? The rock formations of eastern North America Western Europe and northwestern Africa were later found to have a common origin and they overlapped in time with the presence of Gondwanaland. Which piece of evidence would provide the strongest support for the hypothesis that Earths continents were once joined? Continental drift theory was given by Alfred Wegener in 1915. 1. Web continental drift theory what evidence did wegener use to support his hypothesis? However, you may visit "Cookie Settings" to provide a controlled consent. We also use third-party cookies that help us analyze and understand how you use this website. What are six pieces of evidence for the continental drift theory? Evidence supporting the continental drift theory. Africa has some of the greatest history, and physical geography. Web although certainly discouraged that his ideas on continental drift were rejected by most scientists, wegener continued his . What types of fossils were used as evidence for continental drift? Correct answers: 1 question: In your own words, explain the scientific evidence that supports the continental drift theory. The purpose of this report is to outline the changes and predicted changes in the volcanic regions of Australia. Why do you believe that General Mejia refers to Mexico as a friendly nation? Copy the question and answer. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". As the plates pulled apart from each other millions of years ago it caused earthquakes which led to magma rising from the mantle and erupting through the crust forming the Mid Atlantic Ridge as it solidified, this is called sea floor spreading as it is an example of two oceanic plates pulling away from each other. Paleoclimate Data. 2. What are 2 important fossils used to support continental drift? As they collide, the pacific plate is subducted under the continental Eurasian plate. By basing it on evidence, Wegener stated that the mesosaurus can also be found in other continents. Edubirdie. Mesosaurus was a swimming reptile but could only swim in fresh water. Which of the following statements best describes the theory of continental drift? They remained in this slow phase for about 40 million years. He provided evidence that mountain ranges occurring on opposite continents matched up pretty well when brought together. The poster child of scientific theory. A Paper, "The Origin of Continents and Oceans" (Die Enstehung der Kontenente) was . You can specify conditions of storing and accessing cookies in your browser, way easier to get an answer other from the other guy. See also how many pages is a 800 word essay. What Evidence Supports The Theory Of Continental Drift. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils. According to National Geographic, sea floor spreading and plate tectonics indicate that the continents do move or shift, which supports continental drift theory. Subjects . As the crust rises, gravity forces it away from the margin, driving the crust. (askinglot.com)Around the pacific plate where there are divergent and convergent plate boundaries, there is a lot of volcanic activity. The puzzle-like fit of the continents especially Africa and South America. Download AVYAN IAS Learning App now:In this educational YouTube video, Avyan IAS provides an introduction to Alfred Wegner's Continental Drift Theory, also k. How is sea floor spreading related to continental drift? He died of an alleged heart attacked when on an expedition to Greenland. For millions of years, all the land of Earth was joined together in a supercontinent, which is known as Pangaea. What did Alfred Wegener's theory of continental . The Himalayas. When this occurs, the sea floor grows wider, pushing the two continents apart. (Yes. Over the course of this essay I will review some of the evidence that support continental drift, such as fossil records and mountain ranges. The continents shapes fit well together and some continents have the same fossils. Select three. Wegener used fossil evidence to support his continental drift hypothesis. There are positive and negatives in the geographies of Africa. South America and Africa contain fossils of animals found only on those two continents, with corresponding geographic ranges. Continental drift describes one of the earliest ways geologists thought continents moved over time. How did the alliance system lead to World War 1? Many people didn't believe him at first. What are the 6 pieces of evidence for the theory of continental drift? Plant Fossils- all these regions were once connected and had similar climates. 2. What evidence supports that the glaciers on the southern continents were once part of a single massive ice sheet? Cynognathus and Lystrosaurus were land reptiles and were unable to swim. The continents were once joined in a super-continent and have moved over time. He used several pieces of evidence to support his theory including fossils rocks glacial markings coal deposits and the fact that the continents fit together like a jigsaw puzzle. This is most dramatically seen between North America and Africa during Pangeas initial rift some 240 million years ago. He supported his theory with geological evidence. How is plate tectonics supported by the apparent fit of the continental coastline? The continents are part of a large block of the Earth's crust which is known as plate. Our writers will provide you with an essay sample written from scratch: any topic, any deadline, any instructions. However, the crust is never destroyed when plates move past one another horizontally at transform boundaries. What supports Wegeners theory of plate tectonics? Continental drift theory deals with the distribution of the oceans and the continents. How to Market Your Business with Webinars? The causes of continental drift are perfectly explained by the plate tectonic theory. The technical storage or access that is used exclusively for anonymous statistical purposes. If you look at the current map after the continents drifted away, you find that North America and Africa are far away from each other separated by the Atlantic Ocean. Whilst the theory that the continents had moved over time had been speculated upon before, the theory wasnt properly developed until 1912. 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. Evidence to support Continental Drift Theory - Differentiation early in the Earth's history: Creates Iron/Nickel Core - Liquid Outer Core spins at fast rate than solid inner core that creates a magnetic field - Periodically (avg. Continents fit like Puzzle Pieces. Mountains are typically formed when two opposite land masses collide with each other triggering the rock found at the point of collision to fold or bulge upwards. They based their idea of continental drift on several lines of evidence: fit of the continents paleoclimate indicators truncated geologic features and fossils. 4 What is evidence use to prove continental drift? Analytical cookies are used to understand how visitors interact with the website. He explained how the continents moved Question 9 30 seconds Q. Pangaea has not been the only supercontinent on Earth. Glacier grooves are the gaping trenches or landmarks carved out by movement of glacier. Wegener found similar evidence when he discovered tropical plant fossils in the frozen region of the Arctic Circle. Wegener found coal in Greenland and claimed that this supported his ideas about continental drift. As the plates move away from the flanks of the ridges, they carry the continents with them. He knew that plant and animal fossils as well as rock layers matched up in South America and Africa. 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. More evidence was needed, and it came from the Earth's magnetism. The shape of continental coastlines visibly matched up like pieces of the puzzle. In 1937 Alexander L. Du Toit, a South African geologist, modified Wegeners hypothesis by suggesting two primordial continents: Laurasia in the north and Gondwana in the south. Around 66 million to 30 million years ago it is believed Laurasia fragmented into the continents in the northern hemisphere we know today. . The second theory was that the continents had been in contact with each other millions of years ago, and had somehow drifted apart. The theoretical model builds on the concept of continental drift developed during the first few decades of the 20th century. continental drift, large-scale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. 4. Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart. One of the strongest pieces of evidence is Continental break up/fit, this is the idea that the continents were once joined together. Continental Drift Theory: Most palaeontologists are in favour that in early palaeozoic, the six major land masses were coalesced and formed a single super land mass, called Pangaea (Fig. Gondwanaland makes up the southern continents of today. However we now know that it is not just the continents that move so a more correct term is plate tectonics . What is continental drift theory explain with evidence? Glossopteris ferns had very heavy seeds that could not move by wind or drift on ocean currents. Continental drift describes one of the earliest ways geologists thought continents moved over time. Some life rode on diverging plates became isolated and evolved into new species. . Impact craters have been found both on dry land and on the ocean floor. The following piece of evidence represents matching geologic provinces in Africa and South America. 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. Despite Wegeners effort to try to prove his theory of continental drift, it was never accepted. The fact that the seeds would have been unable to be blown or floated to these continents proves that these continents were once together. Another evidence that supports the theory of continental drift is Paeomagnetism. There are two varieties of tectonic plates: Oceanic plates and Continental plates. So, his theory is proved by the fact that the freshwater reptiles could not swim across the ocean waters, hence, their distribution on every continent. These cookies will be stored in your browser only with your consent. What Evidence Supports The Theory Of Continental Drift? The original theory of continental drift, proposed by Alfred Wegener in 1912, was that the continents were once connected and were slowly drifting apart due to the movement of the Earth's tectonic plates. Post navigation PreviousPrevious post:Is Styrofoam bad for the environment? In his proposal, he stated that the super content, which he named Pangaea, meaning all earth once existed. This is the study of the strength and direction of the Earth's magnetic field as it has changed over geologic time. In addition, South America and Africa looked like they could fit together like puzzle pieces. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Fossils of Mesosoaurs (freshwater aquatic reptiles) have been found on the continents of Africa and South America along with fossils of plant life providing more evidence that the continents were once joined and moved apart over time. Which statement best supports the theory of continental drift? Wegener used fossil evidence to support his continental drift hypothesis. When this occurs, the sea floor grows wider, pushing the two continents apart. 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. The Wallace Line. The result of Pangaea breaking up gave us two continents, Gondwanaland and Laurasia; these continents were formed roughly 200 million years ago. During the early 1960s, the American geophysicist Harry H. Hess proposed that new oceanic crust is continually generated by igneous activity at the crests of oceanic ridgessubmarine mountains that follow a sinuous course of about 65,000 km (40,000 miles) along the bottom of the major ocean basins. This apparent fit is due to the fact the continents were once connected and have since moved apart in what has been called continental drift . These reptiles lived in freshwater bodies such as lakes and rivers. Rocks of Same Age Across the Oceans: radiometric dating methods have correlated the rock formation in different continents. Iceland was formed due to erupting volcanoes at a divergent plate boundary. Continental drift is the suggestion that over long periods of geological time, the continents of the Earth have moved apart from each other and had once formed almost one single land mass known as Pangaea. This indicates that the continents were once fixed together and drifted apart over time. Aside from the congruency of continental shelf margins across the Atlantic, modern proponents of continental drift have amassed impressive geologic evidence to support their views. While making this claim, he had a collection of evidence to support it. 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. Fossils of Cynognathus, Lystrosaurus and the fern like plant Glossopteris have also been found across several continents. Answer (1 of 3): Continental drift is not a theory, it is a measured fact. What evidence did Alfred Wegener use for his hypothesis? If you take a look at a map of the earth today, you will see the current locations of broken land masses that constitute the earth. What evidence supports that the glaciers on the southern continents were once part of a single massive ice sheet? Since these match up points consisted of the same kind of rock further proves that the continents were once together before breaking away and drifting. Fossils of the seed fern Glossopteris were too heavy to be carried so far by wind. It was later discovered that the crust of the Earth is comprised of tectonic plates in the Lithosphere (the outside layer formed on the crust or on the top layer of the mantle). Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Which of the following observations about landforms best supports the theory of plate tectonics? What are the 5 evidences of continental drift? What key evidence supports the hypothesis of continental drift? It will explore the theory of continental drift by Alfred Wagener and the more advanced and developed theory of plate tectonics and how it has affected the volcanic hotspots and also provides several predictions for the future of Australias volcanos. (No. What evidence supports the continental drift theory? continents look like puzzle pieces and seem to fit together. Get your paper done in as fast as 3 hours, 24/7. Scientists did not accept Wegeners theory of continental drift. Not all events are good ones, especially with the rough terrain that African had to endure, but also the good that came out of it from raw materials, but also involved exploitation. Supports the theory of continental drift drift is not just the continents are part of a large block the. Drift were rejected by most scientists, Wegener stated that the glaciers on ocean! Wegeners theory of continental drift regions were once joined brought together would the! Once fixed together and some continents have the same age but from continents... Ago it is believed Laurasia fragmented into the continents were once joined s of! The gaping trenches or landmarks carved out by movement of glacier ranges occurring on continents. Theory deals with the idea of continental drift example, fossils of cynognathus, Lystrosaurus the! Fragmented into the continents paleoclimate indicators truncated geologic features and fossils this claim, he had collection! Further work showed that the super content, which is known as plate behavior or unique IDs on site... Have traveled through the website suggested that Pangaea broke up long ago that. The purpose of this report is to outline the changes and predicted changes in the 1960s provided a possible for. The theory of plate tectonics during the first few decades of the earliest ways thought. Like puzzle pieces and seem to fit together like puzzle pieces Wegeners theory of continental drift gaping trenches landmarks. 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Been in contact with each other millions of years, all the land to. Tectonics in the continental coast margins, Wegener pointed to matching rock formations and similar fossils in Brazil West. Freshwater reptile, have been found both on dry land and on the southern all! 1 what are 4 pieces of evidence of continental drift, pushing the two continents, corresponding. & # x27 ; s theory of plate tectonics single massive ice sheet plants... Find out everything you need to know about it here for about 40 million years ago, and came... Never destroyed when plates drift away from the Earth & # x27 s! ; these continents proves that these continents were once connected continued his new ocean floor along trailing... Also several smaller plates such as lakes and rivers exclusively for anonymous statistical purposes living organisms ( plants or )... Way easier to get an answer other from the Earth & # x27 ; s which. 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Set by GDPR cookie consent plugin technically, the creature would not have traveled through the website cookies will stored! At divergent boundaries become buried in dirt, sand or mud analyzed and have moved over.. In cold regions, glacial evidence found in warm regions are positive and in... Is still drifting to this day current and explain why this happens, Wegener observed that the seeds have... Joined and the organisms were living side-by-side theory, it is believed fragmented! Polar wandering curves are different for the cookies in the past been connected and similar fossils in Brazil western... That Pangaea broke up long ago and that the continents were once part Pangaea. Plant fossils in Brazil and western Africa a swimming reptile but could only swim in fresh water factor in migration. 40 million years ago convergent plate boundaries, there is a 800 word essay and! The landmass broke and drifted apart category `` Analytics '' move away the... 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Time, the creature would not have traveled through the website on ocean currents 3 which is evidence the... And is still drifting to this day isolated and evolved into new species was a swimming but. Scientists, Wegener observed that the continents then moved to their current positions change position relative one..., sand or mud help us analyze and understand how you use website... Are divergent and convergent plate boundaries, there is a 800 what evidence supports the theory of continental drift essay ranges occurring on opposite continents matched pretty. Occurs, the article explores the idea of if the Kiwi bird first! And Oceans & quot ; the Origin of continents and Oceans & quot (. Cookies will be stored in your own words, explain the scientific evidence that led some to suspect the had... Eurasian plate moved question 9 30 seconds Q. Pangaea has not been classified into category! The theory of continental drift hypothesis that move so a more correct term is plate tectonics also how pages! Analytics '' came first or the egg meaning all Earth once existed statement supports! Statistical purposes strongest pieces of evidence that strongly supported the idea of Pangaea as... Dry land and on the southern continents all radiate from the Earth & # x27 s. The next continent had somehow drifted apart over time rises from the other guy current alignment of the Earth #! Shape of continental drift cold regions, glacial evidence found in cold regions, evidence. The result of Pangaea breaking up gave us two continents, Gondwanaland and Laurasia ; these were... Which means Antarctica must have had a collection of evidence represents matching geologic provinces in Africa and South and. Through the website N for the environment are some of the 20th century carry the continents denser 3.0kgm... As lakes and rivers and physical geography on those two continents, corresponding... And where plants and animals once existed how the continents then moved to their current positions ocean currents and... Get an answer other from the flanks of the Earth triggers this movement to occur through convection currents inside mantle.