What discovery provided strong support for Continental Drift Theory?A. Continental drift is the hypothesis that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. . Continental drift describes one of the earliest ways geologists thought continents moved over time. Based on material brought up from the ocean floor during a drilling project, he determined that rocks on the ocean floor were younger than those on the continental landmasses. According to National Geographic, sea floor spreading and plate tectonics indicate that the continents do move or shift, which supports continental drift theory. The theory of continental drift was the first step toward plate tectonic theory, which became the foundation upon which modern geology is built. Fossils - certain fossils preserved in rocks of the same age but from different continents. Wegener said that continents move around on Earth's surface and that they were once joined together as a single supercontinent. Continental Drift DRAFT. Paleomagnetism has provided very strong . After going through this module, you are expected to enumerate the lines of evidence that support the plate movement (S9ES - Ia-j-36.6). A. molten magma constantly erupting C. fossil evidence B. drilling samples of rock D. magnetic stripes 6. A. Geology C. Electromagnetism B. Fossil evidence D. Paleomagnetism. The evidence is fairly compelling. 0 times. The continents don't change dramatically or move independently, but are transported by the shifting tectonic plates on which they rest. Paleomagnetism has provided very strong quantitative evidence for polar wander and continental drift. Today, the theory of continental drift has been replaced by the science of plate tectonics.The theory of continental drift is most associated with the scientist Alfred Wegener.In the early 20th century, Wegener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 . This concept was an important precursor to the development of the theory of plate tectonics, which incorporates it. 0 times. by kbrownlchs. Today, the theory of continental drift has been replaced by the science of plate tectonics.The theory of continental drift is most associated with the scientist Alfred Wegener.In the early 20th century, Wegener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 . An adult client tells the nurse that her peripheral vision is not what it used to be and she has a blind spot in her left eye. 1. For slabs subducting to the west, differential rotation opposes the slab motion, squeezing the bend and making the slopes steeper. Fossils. What discovery provided strong support for Continental Drift Theory? glacial grooves are found in Antarctica today and it is cold. Answer (1 of 2): Wegener's theory was discounted because of two factors: first, it was based on Southern Hemisphere data which was highly discounted because of the Northern Hemisphere bias of European and North American scientists; Second, Wegener did not have a mechanism (observable process) tha. Individual landmasses, now separate, have a plethora of features that they share across a vast ocean. After going through this module, you are expected to enumerate the lines of evidence that support the plate movement (S9ES - Ia-j-36.6). Supporting Wegener's theory of continental drift, Hess explained how the once-joined continents had separated into the seven that exist today. 17 hours ago. A. molten magma constantly erupting C. fossil evidence B. drilling samples of rock D. magnetic stripes 6. The continental drift hypothesis states that the position of the continents on the Earth's surface has changed considerably over time. The theory of plate tectonics (proposed by Samuel Warren Carey in 1958) proposed that the surface of the Earth is composed of large plates that float on liquid rock (magma). answer choices the presence of penguins at both the equator and Antarctica molten magma constantly erupting C. fossil evidenceB. Theory of the Continental Drift. 39 Votes) Paleomagnetism is the study of the ancient magnetic field of both rocks and the Earth as a whole. Who first proposed the theory of continental drift'? 0. . Precisely used, the term "continental drift" is actually rooted in antiquated concepts regarding the structure of the Earth. Seafloor spreading is a process that would help explain how the continental drift might occur. These questions ignited our scientists' curiosity to look for answers and lead to the development of the following ideas: Continental Drift Theory, Seafloor Spreading, and Earth's Magnetic Reversal. answer choices Geology Electromagnetism Astrophysics Paleomagnetism Question 9 300 seconds Q. Noting the apparent fit of the bulge of eastern . glacial grooves are found in the warm areas today, so it means that continent used to be near the poles. In the 1960s, these and other scientific advances confirmed at last the theory of "plate tectonics," -the source of the energy and mechanics of plate movement on the Earth's crust. Continental drift is the hypothesis that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. Wegener's theory Wegener used geologic, fossil, and glacial evidence from opposite sides of the Atlantic Ocean to support his theory of continental drift. Alfred Wegener proposes Continental drift DRIFT His hypothesis was controversial and not widely accepted until the 1950s, when numerous discoveries such as palaeomagnetism provided strong support for continental drift, and thereby a substantial basis for today's model of Plate tectonics Social Studies. Edit. What does the theory of continental drift state? Which is not evidence of seafloor spreading? With the discovery of seafloor spreading, the theory of continental drift became plausible, and today, we refer to it as the plate tectonics theory. 1.9 ). The theory of continental drift (famously argued by Alfred Wegener in 1921) did not become widely accepted until we could explain why and how the continents moved. . Paleontological studies had already demonstrated such strong similarities between the flora and fauna of the southern continents between 300,000,000 and 150,000,000 years ago that a huge supercontinent, Pangea, had been proposed (see illustration). Continents fit like Puzzle Pieces. Geologists can calculate when and where plate movements occurred over millions of years. Edit. History of Wegener ' s theory. a. Continental Drift DRAFT. Save. For example, he said that there were geological similarities between the Appalachian Mountains in North America, and the Scottish Highlands. Evidence supporting the hypothesis. Return this module to your teacher/facilitator once you are through with it. This diagnostic sequence consists of glacial deposits called tillites, followed by sandstones and finally coal measures, typical of warm moist climates. Paleomagnetism is the study of the earth's past magnetic field. 0. Both his ideas and those of Wegener have been greatly modified in the light of the discovery of the magnetic stripes on the Atlantic seafloor and the actual measurement of the rate and direction of the movement of the Continents. The relative movement of the continents is explained by modern theories of plate tectonics.These theories describe the processes by which lithospheric plates — of which the visible continents are a part — move over the asthenosphere (the molten, ductile, upper . What discovery provided strong support for Continental Drift? Preview this quiz on Quizizz. Fossil evidence D. Paleomagnetism D. Paleomagnetism 5. 3. In 1965, a Canadian geophysicist, J. Tuzo Wilson, combined the continental drift and seafloor spreading hypotheses to propose the theory of plate tectonics. Who first proposed the theory of continental drift'? 0% average accuracy. Save. #CarryOnLearning Advertisement Still have questions? 4. The strikingly similar Paleozoic sedimentary sequences on all southern continents and also in India are an example of evidence that supports continental drift. kbrownlchs. A. Geology C. Electromagnetism B. Fossil evidence D. Paleomagnetism 5. Observe honesty and integrity in doing the tasks and checking your answers. There are various examples of fossils found on separate continents and in no other regions. The fossils of these organisms are found on lands that are now far apart. Continental drift was a revolutionary scientific theory developed in the years 1908-1912 by Alfred Wegener (1880-1930), a German meteorologist, climatologist, and geophysicist, that put forth the hypothesis that the continents had all originally been a part of one enormous landmass or supercontinent about 240 million years ago before breaking apart and drifting to their current locations. It may help you to recall this term if you remember that it is the combination of two words: 'paleo,' which means ancient, and . The magnets point north when Earth's magnetic field has A Geology C. Electromagnetism B. Fossil evidences D. Paleomagnetism 2 What discovery provided strong support for Continental Drift Theory? Who first proposed the theory of continental drift'? Edit. Strong support for differential rotation is provided by the asymmetry of the tilt of downgoing slabs, depending on whether the plate descends to the East or West ( Fig. answer choices. Geology. The idea of continental drift has been subsumed into the science of plate tectonics, which studies the movement of the continents as they ride on plates of the Earth's lithosphere. Animal species that are present (today and in the past) that both come from the same common a. These questions ignited our scientists' curiosity to look for answers and lead to the development of the following ideas: Continental Drift Theory, Seafloor Spreading, and Earth's Magnetic Reversal. A. Geology C. Electromagnetism B. Fossil evidence D. Paleomagnetism 5. The continental drift controversy has been deeply analysed in terms of rationalist notions, which seem to find there a unique topic to describe the weight of evidence for reaching consensus. This magnetism is caused by the alignment of the magnetic field of the magnetic minerals within a rock. Social Studies. What discovery provided strong support for Continental Drift Theory? What discovery provided strong support for Continental Drift Theory? Fossil evidences. While Wegener was alive, scientists did not believe that the continents could move. theory- fit of continents wasn't just a coincidence; fossil clues: fossils of the Mesosaurus are found in South America and Africa, which means this reptile lived on both freshwater and land. Tuzo said that Earth's crust, or lithosphere, was divided into large, rigid pieces called plates. Answer (1 of 19): Continents don't drift. In that sense, many authors suggest that Alfred Wegener's theory of the original supercontinent Pangea and the subsequent continental displacements finally reached a consensus when irrefutable evidence . Preview this quiz on Quizizz. . For more information about geology, please visit the link below: Electromagnetism C. Geology B. Fossil evidence D. Paleomagnetism D. Paleomagnetism 9. Fossils of the Mesosaurus, an ancient freshwater reptile found in the southern parts of South America and Africa, also indicate that the two continents could have once been one solid continent that drifted apart, since the reptile . . the nurse w … Harry Hess (1906-1969), an American geologist and professor of geology at Princeton University, discovered seafloor spreading. . 3. Hess's theory that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge. 0% average accuracy. Continental drift over millions of years was caused by plate tectonics. answer choices Geology Fossil evidences Electromagnetism Paleomagnetism Question 5 30 seconds Q. Pangaea splits. Earth's internal processes were previously thought to operate in a vertical fashion, with continents, oceans, and mountain ranges bobbing up and down, without much sideways movement. The idea of a large-scale displacement of continents has a long history. Grooves and rock deposits left by ancient glaciers are found today on different continents very close to the equator. Geology C. ElectromagnetismB. . They are always pushed. answer choices molten magma constantly erupting drifting samples of rocks fossil evidences magnetic stripes Question 6 30 seconds Q. He believed in many of the observations Wegener used in defending his theory of continental drift, but he had very different views about large-scale movements of the Earth. D. Paleomagnetism. ; The regions that hold the unique record of earth's magnetic field lie along the mid-ocean ridges where the sea floor is spreading. 5. 17 hours ago. . Which is notevidence of seafloor spreading? glacial grooves are found in the warm areas because there was an ice age and continents . answer choices . All of these facts supported Wegener's theory of "continental drift." In 1915 the first edition of The Origin of Continents and Oceans, a book outlining Wegener's theory, was published; expanded editions were published in 1920, 1922, and 1929. Resources. After going through this module, you are expected to enumerate the lines of evidence that support the plate movement (S9ES - Ia-j-36.6). What discovery provided strong support for Continental Drift Theory? How is seafloor spreading different from continental drift. 9th grade. 6. . 9th grade . What discovery about the ocean floor is associated with the seafloor spreading? - 4881035 jenelynalsado2 jenelynalsado2 17.10.2020 Science Junior High School answered 4. As with continental drift theory, two lines of evidence supporting plate tectonics are based upon the geometric fit of the displaced continents and the similarity of rock ages and Paleozoic fossils in corresponding bands or zones in adjacent or corresponding geographic areas (e.g., between West Africa . During the 1960s, scientists were already equipped with gadgets needed to explore the depth of the ocean. Section Check 1 Answer The answer is A. Continental drift is the theory that the continents have slowly moved. Although continental drift was outlined by Alfred Wegener in 1912, the idea was not particularly new. Seafloor Spreading 2 Magnetic Time Scale • This discovery provided strong support that seafloor spreading was indeed occurring . Continental Drift DRAFT. ; climate: changing climates, fossils of warm-weather plants were found on the island . Who first proposed the theory of continental drift'? The theory also explained Hess's puzzling guyots. 17 hours ago. About 300 million years ago, claimed Wegener, the continents had formed a single mass, called Pangaea . The continental drift hypothesis was developed in the early part of the 20 th century, mostly by Alfred Wegener. the nurse should refer … An adult reports usually eating the following each day: 3 cups dairy, 2 cups fruit, 2 cups vegetables, 5 ounces grains, and 5 ounces meat.
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