Continental drift and plate tectonics university of iceland. Wegener also provided evidence of continental drift by looking at the physical shape of continental coastlines. He studied land features, fossils, and evidence of climate change. Continental drift plates in the crust of the earth, according to the plate tectonics theory from wikipedia, the free encyclopedia continental drift is the movement of the earths continents relative to each other. Preface chapter 1 palaeomagnetic evidence for continental drift and its geophysical cause. Dec 17, 2019 plate tectonics it was from the continental drift theory, convection current theory and the theory of seafloor spreading, the theory of plate tectonics was formulated. Continental drift and plate tectonics kaiserscience. One indication of this possibility is the appearance of the western african and eastern south american coasts, which look like two interlocking jigsaw. Learn continental drift theory with free interactive flashcards. Wegener identified several lines of evidence to support the idea that the continents had drifted.
Ebook plate tectonics and continental drift as pdf download. Although the evidence for continental drift was extremely strong, scientists rejected the idea because no mechanism for how solid continents could move around on the. A brief overview of the theory of continental drift and the evidence supporting it. Continental drift is the theory that the earths continents have moved over geologic time relative to each other, thus appearing to have drifted across the ocean bed. High school earth sciencecontinental drift wikibooks, open. Alfred wegener and continental drift it was not until 1912 that the idea of moving continents was seriously considered as a fullblown scientific theory called continental drift introduced in two articles published by a 32yearold german meteorologist named alfred lothar wegener alfred lothar wegener 18801930 earned a. Save 50% on all pmfias pdf and doc notes subscribe to pmfias ad free at rs.
Enrol and complete the course for a free statement of participation or digital badge if available. Evidence for continental drift wegener gathered evidence for his hypothesis from fossils, from studies of ancient climate, and from the geology of continents. Seafloor spreading theory sfst seafloor spreading describes the movement of. As noted by sniderpellegrini and alfred wegener, the locations of certain fossil plants and animals on presentday, widely separated continents would form definite patterns shown by the bands of colors, if the continents are rejoined. This video explores how the apparent fit of the continents, fossil and rock. Continental drift refers to the movement of the continents relative to each other.
The continental drift theory station lab is a plug and play unit that is meant to accompany my free mad science station lab series. In many instances, similar fossil assemblages are preserved in rocks of the same age in different continents. Although the evidence was extremely strong, scientists could not think of a mechanism that could drive solid continents to move around on the solid earth and most. These notes will also be useful for other competitive exams like banking po, ssc, state civil services exams and so on. Pdf styles of thought on the continental drift debate. In this activity students recreate the argument wegener used to support his theory of continental drift. You will be piecing together a puzzle of the supercontinent pangea based on fossil and rock evidence on the present day continents. The evidence which gave rise to the theory of continental drift more correctly called plate tectonics includes the following. Ncert notes on important topics for the upsc civil services exam. This indicates that the continents were once fixed together. Continental drift 1 no transcript 2 continental drift. What evidence is there of the continental drift theory. Fossils exist in geographic patterns this pattern implies that all of the continents must have once laid together.
Continental drift theory station lab students will love you for providing them with a handson experience when learning about the continental drift theory. Mountain ranges and other landforms provided evidence for. Alfred wegener was the developer of a new theory of the earths surface called continental drift, and he was an adept investigator, but he passed away in 1930 with his. Continental drift theory peninsular india paleontological evidence. The evidence for continental drift included the fit of the continents. Each inb activity is designed to help students compartmentalize information for a greater understanding of the concept. A brief introduction to alfred wegeners theory of continental drift, which would lay the groundwork for the development of plate tectonic theory, which essentially explains the geology of the. According to the theory of plate tectonics, the earths lithosphere is broken into distinct plates which are. Check out my digital continental drift cer designe. Starting with pangaea, draw how the continents would look, then as continental drift was in progress, then color in the present day world map.
From this he began plotting worldwide distributions of both rock and fossil data that indicated tropic, desert and polar climates. Students create an interactive notebook foldable of notes and use this to create a cer scientific argument with claim, evidence, and reasoning. The shape of continental coastlines visibly matched up like pieces of the puzzle. Continental drift germantown municipal school district.
A theory proposed by alfred wegner that said all continents were once joined 300 million years ago in a single land mass called pangaea. Continental drift, largescale horizontal movements of continents relative to one another and to the ocean basins during one or more episodes of geologic time. Continental drift definition of continental drift by the. Until the idea of continental drift was put forth by hess, wegener was largely disregarded as a fool. Pdf alfred wegenerfrom continental drift to plate tectonics. Evidence for the mechanism of continental drift video. Apr 28, 2018 map of continental drift fossil evidence. The continents looked as though they might fit together. Continental trench, volcanic arc, subduction, lithosphere, asthenosphere. More evidence still, wegener did have some evidence working in his favor during his own time. A continental drift flipbook article pdf available in the journal of geology 1126. Continental drift theory with evidences free download as powerpoint presentation. Nov 29, 2012 a brief introduction to alfred wegeners theory of continental drift, which would lay the groundwork for the development of plate tectonic theory, which essentially explains the geology of the. Next, fill out the evidence foldable with four pieces of evidence mentioned in the reading passage.
Ppt continental drift powerpoint presentation free to. Alfred wegener, a german meteorologist and geophysicist, was the first to advance the idea of mobile continents in 1912. Physical science concepts by mason, griffen, merrill and thorne. This concept was an important precursor to the development of the theory of plate tectonics, which incorporates it. Continental drift article about continental drift by the. Evidence of continental as a meteorologist alfred wegener was well aware of some climatological puzzles, such as the remains of temperate climate trees that can be found under polar ice. Wegener explicitly presented his theory as a means to reconcile historical geology with isostasy. On the other hand, evolution detractors usually assess continental drift to be as poorly. Pdf the continental drift controversy has been deeply analysed in terms of rationalist notions, which seem to find there a unique topic to. Fossils certain fossils preserved in rocks of the same age but from different continents. Explanation of the continental drift theory in the light of vertebrate distribution.
Upsc geography continental drift theory neostencil. More indepth questions can be asked during the explanation. Although the theory has some lacunae but it is the foundation for modern theories such as plate tectonics and sea floor spreading. The continental drift theory inb template allows students to focus their notes on alfred wegener, continental drift theory, pangaea, and the 3 pieces of evidence. This article talks about the continental drift theory upsc. The rejection of continental drift uc press journals. Who proposed the theory and what evidence did he provide to prove his theory. Continental drift is a theory originally proposed by alfred wegener, who believed the continents were once one large continent known as pangaea that later separated into several continents.
Tectonics, continental drift theory by alfred wegener, evidence and. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Continental drift, largescale horizontal movement of continents relative to one another and to the ocean basins during one or more episodes of geologic time. The coasts of the continents surrounding the atlantic ocean could, if the continents were moved closer, fit together like a jigsaw puzzle. Continental drift theory with evidences plate tectonics. In 1967, mckenzie and parker suggested the theory of plate tectonics. The theory deals with the distribution of the oceans and the continents. Continental drift theory proposed by alfred wegener tries to explain the distribution of oceans and continents. Fossils wegener learned that the fossils of an ancient reptile, mesosaurus mehzuhsawruhs, had been discovered in south america and western africa. Continental drift timeline activity sheet continental drift.
Continental drift is the motion of the earths continents over geological time. Polar wandering similar to continental drift theory polar wandering is the relative movement of the earths crust and upper mantle with respect to the rotational poles of the earth. In a book called the origin of continents and oceans, wegener presented his evidence. Forces behind the drifting of continents, according to wegener. In this article we will discuss about continental drift. Continental drift theory free download as powerpoint presentation. Choose from 500 different sets of continental drift theory flashcards on quizlet. Pdf what is the nature of the force or mechanism that moves massive continents thousands of miles across. For example, the continents of south america and africa fit perfectly when brought together. Dec 16, 2019 continental drift refers to the movement of the continents relative to each other.
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