Mar 17, 2016 plate tectonics and continental drift infographic. Look at the diagram under the continentalcontinental information. Finally, there was an explanation for how the continents could move. The first comprehensive theory of continental drift was suggested by the german meteorologist alfred wegener in 1912. How to do a scientific reevaluation paul jeffrey fox. Ive also posted audio files of me reading each section of the text. You can write one long poem that includes all the necessary information, or write several poems that focus on several topics ex. Hall possible method for the proof or disproof of the wegener theory f. The magma rises through the gaps in the continental plate. Wegeners hypothesis continental driftthe hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present location. During the 20th century, a major scientific concepttheory of plate tectonics emerged. The oceanic plate subducts under the continental plate. Theory of continental drift early 1500s explorers noticed the fit between africa and south america 1912 alfred wegener the idea that the continents used to form a super continent called pangea the continents then slowly drifted apart over time to their current locations used fossil evidence as well as the fact that the continents looked like puzzle pieces.
The hypothesis asserts that the continents consist of. 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. Over time the continents moved to their present day locations. Continental drift and plate tectonics university of iceland. A plate tectonic puzzle american museum of natural history. The sections, called plates, move on a plasticlike layer of the mantle.
Wegeners continental drift meets wilsons plate tectonics. It is this theory that led to the discovery of plate tectonics. Plate tectonics notes hanover area school district. Alfred wegenerfrom continental drift to plate tectonics article pdf available in resonance 106. The continental drift hypothesiscontinents have moved slowly to notetaking worksheet. It explains that the continents drifted apart because of the constant interaction between the earths tectonic plates and the heat of the earths core. If you see some unexpected behavior, you may want to use a supported browser instead. In the 1960s, scientists developed a new theory that combined continental drift and seafloor spreading. Who proposed the theory and what evidence did he provide to prove his theory. Although part of his theory of continental drift, that the continents ploughed through the ocean floor, has now been discounted, there is certain evidence for the breakup and movement of continents over the surface of the earth. Activity that will allow students to visualize the concept of continental drift and plate tectonics. A theory proposed by alfred wegner that said all continents were once joined 300 million years ago in a single land mass called pangaea.
First proposed by german scientist alfred wegener in 1912. Plate tectonics expands on the continental drift theory and is based on the concept that there are seven or eight depending on how the plates are defined major plates and numerous minor plates and microplates that are made up of either the oceanic or continental lithosphere. Earths crust and part of the upper mantle are broken into plates, or sections, that move around on a plasticlike layer of the mantle. Dec 06, 2019 plate tectonics and earthquake readings and audio files you can find pdfs of the reading for the plate tectonics learning quest below. This pdfversion was edited by peter lindeberg in december 2001. Continental drift proposed by alfred wegner continental drift theory which states that parts of earths crust slowly drift atop a liquid core continents were once joined together as a gigantic supercontinent pangaea 200 mya broke up and drifted to present position used matching coastlines of continents, rock. Types of plate boundaries tectonic plate boundaries may be in the middle of the ocean floor, around the edges of continents, or even within continents. Strong influence of crustal evolution on ore deposition j. Students explore the basics of wegeners theory of continental drift.
Mineral deposits, continental drift, and plate tectonics. Earths geography has changed through time and continues to change today. The basic idea behind plate tectonics is that there are eight major plates on the surface of the earth. What mountain range demonstrates one of the most visible and spectacular consequences of plate tectonics. What happens when two continents meet headon, meet headon and neither is subducted. Jan 28, 2014 this feature is not available right now. Plate tectonics plate tectonics is the unifying theory of geology and revolutionized geology cornerstone of earthsystem approach. Look at the diagram under the continental continental information. Alfred wegener 18801930 4 the continents looked a little like puzzle. The three types of plate boundaries are divergent boundaries, convergent boundaries, and transform boundaries.
Some of the worksheets below are tectonic plates worksheets, predicting tectonic activity, definition of plate composition, plate movement, types of plate boundary, continentcontinent collision, handson activities, with colorful diagrams along with questions and answers at. As the plate descends it starts to melt due to the friction caused by the movement between the plates. The evidence for continental movement evidence of an upper. Plate tectonics 1950s and 1960s earthquakes, magnetism, and age of ocean floor rocks provided some support to wegeners idea, but the motion paths did not match with the evidence the theory continents and ocean basins are adhered to lithospheric plates which cause the continents to move when the plates are moving. Dec 09, 2019 some of the worksheets below are tectonic plates worksheets, predicting tectonic activity, definition of plate composition, plate movement, types of plate boundary, continentcontinent collision, handson activities, with colorful diagrams along with questions and answers at the end of each page.
Theory of continental drift the continental drift hypothesis was developed in the early part of the 20th century, mostly by alfred wegener. Plate tectonic theory arose out of the hypothesis of continental drift proposed by alfred wegener in. The theory of plate tectonics was influenced by alfred wegeners hypothesis of continental drift, introduced in 1915. Animation of sea floor spreading worldwide earthquake patterns help us know where the edges of plates are located the earths plates wegener 18801930 continental drift was wegeners theory that all continents had once been joined together in a single landmass and have drifted apart since. Join us and be part of the upper crust as we investigate the driving force of plate tectonics. This idea is called continental drift, and was first proposed by a german scientist named alfred wegener in 1912. Jun 20, 20 therefore, based on the concepts of the continental drift and other developing ideas at the time, a general theory was developed, which is now known as the plate tectonics.
Bromley plate tectonic setting of applalaciancaledonian mineral deposits as indicated by newfoundland examples d. A volcanic mountain range forms on land above the subduction zone. Henry tin belts on continents around atlantic ocean r. Describe the type of plate boundary that forms mountains and islands. Midocean ridges are essentially submerged mountain chains that are characterised by a deep central rift valley. According to the theory of continental drift, all of the worlds continents were once. The continental drift hypothesis was developed in the early part of the 20th century, mostly by alfred wegener. Continental drift activity packet free pdf file sharing. How did our local rocks get here, and why should you care. Earths plates and watch the movement of each continent continental drift.
Continental drift 1912 alfred wegener meteorologist theory. There will be plenty of time to play the other games. Use creativity, pictures, and include all necessary information. Reading comprehension activity discussing the formation of a mud volcano. According to the continental drift theory, the supercontinent pangaea began to break up. The lithosphere is broken up into what are called tectonic plates in the case. Continental drift pangea final pangea plate tectonics. In 1912, alfred wegener came up with a theory called continental drift which said that maybe the seven continents sort of floated around on the earth. According to the theory of continental drift, the world was made up of a single continent through most of geologic time. What will happen if a continental plate collides with an oceanic plate. Plate tectonics and continental drift infographic live. Explain why oceanic crust slides under continental crust, but continental crust does not usually slide under oceanic crust. Difference between continental drift and plate tectonics.
Testing for plate tectonicsscientists can measure movements as little as i cm per year. Continental drift is a theory that states that the continents were once a single landmass that broke apart and moved into the positions they are today. Earths crust is divided into two major layers, the lithosphere at the top and the asthenosphere right below it. Dec 28, 2016 plate tectonics expands on the continental drift theory and is based on the concept that there are seven or eight depending on how the plates are defined major plates and numerous minor plates and microplates that are made up of either the oceanic or continental lithosphere. If you have any difficulty with the readability of these documents, please contact the earthlearningidea. Sep 30, 2017 students explore the basics of wegeners theory of continental drift. The plate tectonics theory is based on the continental drift theory in that it explains how the supercontinent drifted apart into several plates. Alfred wegener first proposed the theory of continental drift. The boundaries between plates can be convergent collisional, divergent extensional, or sidetoside movement strikeslip or transform movement and typically feature mountain ranges. Plate tectonics and earthquake readings and audio files mrs. Earths plates are made up of parts of the seafloor and continents, so as the seafloor spreads it also makes the continents move.
Pdf a historical account of how continental drift and plate tectonics. The theory that explains how the earths surface is made up of moving rocky plates is called. Its made to accompany my powerpoint, continental drift and plate tectonics, but these cards could be used effectively no matter how you present the co. Consider continental driftplate tectonics as examples of the scientific method. Choose from 500 different sets of plate tectonics continental drift questions flashcards on quizlet. Use webbased or other technology tools to show connections and patterns in data about tectonic plate boundaries and earthquakes. Plate tectonics and earthquake readings and audio files. Now people know earthquakes happen along the plate boundaries, so they can predict where it is going to happening.
Oliver, sykes 1968 you are invited to a twoday symposium to celebrate lamonts role in the plate tectonics revolution and the continuing advances in our understanding. How wegeners continental drift evidence matches up with evidence for plate tectonics. Well gather evidence and find out how the cooling of the earths interior is driving its exterior plate motion. Earths crust and upper mantle are broken into sections. When we say constantly moving, were talking centimeters each year. Plate tectonics is the theory explaining the motion of the outer crust or the lithosphere of earth. Plate tectonics although ridiculed at first, wegners theory on continental drift was supported by evidence decades after his death and led to the development of the theory of plate tectonics, or the movement of the earths crust. Gather, analyze, and communicate data that explains earths plates, plate motions, and the results of plate motions dok 12 d.
The oceanic plate descends under the continental plate because it is denser. A theory that combines continental drift and seafloor spreading. That continent eventually separated and drifted apart, forming into the seven continents we have today. Pdf alfred wegenerfrom continental drift to plate tectonics. Learn plate tectonics continental drift questions with free interactive flashcards. Tcss earth systems unit 2 plate tectonics information. Therefore, based on the concepts of the continental drift and other developing ideas at the time, a general theory was developed, which is now known as the plate tectonics. At one time, all of the continents may have been joined in one giant continent called. Learn the driving forces and basic operation of plate tectonics.
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