Plate Tectonics Designed to meet South Carolina Department of Education 2005 Science Academic Standards Table of Contents Plate Tectonics: The Beginning (slides 3 and 4) Layers of the Earth (slides 5 and 6) Standard 8-3.1 What are Tectonic Plates- movement? (slides 7 and 8) Standard 8-3.6 Tectonic Plate boundaries (slides 9-21) 1. Convergent boundary Ocean-continent (slide 10) Continent-continent (slide 11) Oceanic-oceanic (slide 12) Volcanism (slide 13) 2. Divergent boundary Sea-floor
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AUTOMATIC NUMBER PLATE RECOGNITION SYSTEMS Introduction It is believed that there are currently more than half a billion cars on the roads worldwide. All those vehicles have their vehicle identification number ("VIN") which states a legal license to participate in the public traffic. No vehicle without properly mounted‚ well visible and well readable license plate should run on the roads. The license number is the most important identification data a computer system should treat when dealing
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INTRODUCTION Plate tectonics The large scale motions of the earth’s lithosphere are describe by a scientific theory called plate tectonics which explains that Earth’s outer layer is made up of plates‚ which have moved throughout Earth’s history. The theory was developed during first decade of 20th century (by a famous advocate Alfred Wegener) on the older concept of continental drift and was accepted by many geoscientific communities. There are currently seven major and many minor plates are present
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The theory of plate tectonics states that the Earth’s lithosphere is broken up into many different pieces separated by jagged cracks. These are called the tectonic plates. They are in slow‚ constant motion pushed by the convection currents in Earth’s asthenosphere. This theory explains the process of sea floor spreading at mid-ocean ridges‚ and subduction at deep ocean trenches. It was proposed by J. Tuzo Wilson in 1965. He combined the discoveries of Harry Hess and Alfred Wegner to support this
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the farther they are from a ridge?! -Thickness of ocean floor sediments increase the farther they are from a ridge because when new rocks form at the ridge‚ old rocks move away from the centre and this rocks stack along the end of sediments which pile up for long time that creates thick sediments‚! ! 10. How does sea floor spreading explain the movement of tectonic plates?! - Sea floor spreading in movement of tectonic plates is called divergent‚ the separation of two plate. This can be proved because
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Plate boundaries Plate Boundaries is a theory of the global movement over a period of time. There are three main types of plate boundaries they are‚ transform boundaries‚ convergent boundaries‚ and divergent boundaries. Transform boundaries are where two plates are sliding past each other. These areas are also known as faults. Most transform boundaries are found on the ocean floor‚ a few however are found on land. Since these boundaries do not crunch together they to not tear or break
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Constructive boundaries occur when two plates move apart which causes new oceanic crust to be formed and mid-ocean ridges are created by the build-up of molten rock on the seafloor due to the mantle building up. This new crust pushes the old crust aside and forcing the plates apart at a very slow rate. Basaltic lava rises which means new crust is being added continuously. Rift valleys are formed at constructive boundaries‚ where convection current causes the crust to be pulled apart causing fractures
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Plate tectonics (from the Late Latin tectonicus‚ from the Greek: τεκτονικός "pertaining to building")[1] is a scientific theory that describes the large-scale motions of Earth’s lithosphere. The model builds on the concepts of continental drift‚ developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were developed in the late 1950s and early 1960s. The lithosphere is broken up into tectonic plates. On
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No; the experiment was not successful‚ because it did not show the correct fluorescence gradation of the serial dilution of the DNA concentration. As shown by the picture‚ only the first drop of the DNA/EtBr mixture for the DNA standards fluoresce brightly under the UV light‚ while the other spots for both the DNA standards and the unknown DNA standards were all dimly fluoresce. This was due to pipetting error; the tip of the pipette did not touch the liquid (TE) in the micro-centrifuge‚ so no DNA
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Why is a conical flask‚ rather than a beaker‚ used in the experiment? – To allow easy mixing of solutions by swirling. 2. Why is the funnel removed from the burette after adding the acid solution? – so that the drops from the funnel will not fall into the burette. 3. In using a burette‚ why is it important to (a) rinse it with a little of the solution it is going to contain? – to remove any residual water and so avoid dilution of the acid solution when it is poured into the burette. (b) to clamp
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