Explore how plates move on the surface of the earth. Geological survey, 2009, earthquake hazards programalaska. As ideas concerning plate tectonics have evolved since the 1970s, it has become apparent that while the theory can be applied rigorously to the oceans, the same cannot be said of the continents. Methods and their application for hazard and risk assessment removed. Eruptions on a caribbean island soufriere soo free ur. When two plates push into each other, they form a convergent plate boundary. Other forces that act on plates must be generated at their boundaries. According to the theory of plate tectonics, the earths lithosphere is broken into distinct plates which are. Introduction to plate tectonics and earthquakes lesson plans. 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.
For example, the oceanic nazca plate off the coast of south america along the peruchile trench pushes into and is subducted under the south american plate. Change temperature, composition, and thickness of plates. The theory of plate tectonics geology lumen learning. Plate tectonics volcanoes and earthquakes pdf free download. Plates move at a rate of a few centimeters a year, about the same rate fingernails grow. Once my kids had an idea of how tectonic plates move, it was time to get our hands messy. Along the earthquake fault, the deformed rocks will. Plate tectonics, theory dealing with the dynamics of earths outer shell that revolutionized earth sciences by providing a uniform context for understanding mountainbuilding processes, volcanoes, and earthquakes as well as the evolution of earths surface. Plate tectonics wikipedia, the free encyclopedia harvard university. The theory of plate tectonics describes how the plates move, interact, and change the physical landscape.
Movement of the plates over earths surface is termed plate tectonics. Because of the strength and rigidity of oceanic plates, deformation is focused into narrow linear zones along plate. In areas where there are rift zones or ocean ridges, plates are diverging and in places where. Consequently, earthquakes concentrate along the plate boundary faults, and show quasiperiodic. Plate tectonics is a relatively new scientific concept, introduced some 30 years ago, but it has revolutionized our understanding of the dynamic planet upon which we live. Most movement occurs along narrow zones between plates.
Economic efficiency and risk mitigation ieee press series on power engineering. Try to place some named examples as accurately as you can. Scientists now have a fairly good understanding of how the plates move and how such movements relate to earthquake activity. The movement of earths crust resulting from the release of built up potential energy between two stuck tectonic plates.
Describe the differences between oceanic and continental crust, including their respective properties of density, composition, temperature and thickness. Locations of earthquakes and volcanoes show the plate boundaries and ocean floor features. It has aided our understanding of why earthquakes and volcanoes are found in distinct locations, how oceans form and disappear, and how mountain ranges were built. This includes all of the worksheets in both pdf and doc format. One reason for the difference in earthquake distribution in continental rift zones is that the rifts are only beginning to form. Earthquakes clearly identify areas of active faulting, where relative movement between different tectonic plates occurs along faults that separate. We know that each year about 140 earthquakes of magnitude 6. Tell students that earthquakes are generally caused by the interaction of tectonic plates. A pdf guide to plate tectonics and earthquakes is also available.
Plate tectonics caused a revolution in our understanding of the earth. Plate tectonics summary the earth is made up of 3 main layers core, mantle, crust on the surface of the earth are tectonic plates that slowly move around the globe plates are made of crust and upper mantle lithosphere there are 2 types of plate there are 3 types of plate boundaries volcanoes and earthquakes are closely. Understanding processes behind natural disasters the basics including plate tectonics and earthquakes. Its like when youre teacher loses their marbles because youve asked them the same question 7 times in a row. Fema 159, for free copy, write on school letterhead to. Teaching plate tectonics with easytodraw illustrations next time you teach plate tectonics, consider a drawwithme presentation that will engage your students and help them understand the spatial and movement aspects of plate boundary environments. I also organized a few teacher notes on plate tectonics to help guide class discussions today. Investigating the patterns produced by volcanoes and earthquakes. After doing so, students are expected explain, in sentence form, what processes are occurri. I prepared for todays lesson by projecting and tracing the following document plate tectonics template on a large bulletin board paper. Pdf active tectonics, earthquakes and palaeoseismicity in slowly. In 1967, mckenzie and parker suggested the theory of plate tectonics.
Earthquakes are the result of plate tectonics, or shifting plates in the crust of earth, and quakes occur when the frictional stress of gliding plate boundaries builds and causes failure at a. If youre seeing this message, it means were having trouble loading external resources on our website. Tectonic plates or huge slabs of solid rocks separate, collide, and slide past each other causing earthquakes, feeding volcanic eruptions, and raising mountains. From wikipedia, the free encyclopedia plate tectonics from greek, tekton builder or mason describes the large scale motions of earths lithosphere. The structure of the earth, plate tectonics and landforms. Read and learn for free about the following article.
Free download re s o u r c e s fe at u r e d in t h e plate te c t o nci po w e r poni t. Plate tectonic theory arose out of the hypothesis of continental drift. Plate tectonics and earthquakes the distribution and properties of plates and the motions at different kinds of. Our planet might seem fixed and rigid, but a closer look reveals that it is constantly shifting under our feet. Using easytodraw illustrations to teach about plate. The lithosphereasthenosphere boundary changes with certain tectonic. It allows them to demonstrate their knowledge plate tectonics and wegeners continental drift theory in a fun and engaging way. Plate boundaries are where we see plate tectonics in actionmountain building, triggering earthquakes, and generating volcanic activity. But the boundary between the north american and pacific plates interfaces in a line that runs from the mexican border north. The plate tectonics escape room is an immersive experience for your students. The theory encompasses the older concepts of continental drift, developed. The plate tectonics gizmo shows a crosssection, or side view, of earth. Hot material rises at midocean ridges and sinks at deep sea trenches, which keeps the plates moving along the.
Are earthquakes and volcanoes com pletely unrelated, or. These forces push from the ridge, drag the plates down at the trenches, or act along the sides of plates at conservative boundaries figure 28. Plate tectonics is the theory that explains how large pieces of the earths outermost layer, called tectonic plates, move and change shape. Delve into the earths interior, learn about its tectonic plates and their movements, and discover how mountains, volcanoes, and earthquakes. Inclined zone of earthquake foci adjacent to oceanic trench. Discover how to create new mountains, volcanoes, or oceans. The process of drawing a picture involves students much more deeply than reading or discussion. Pdf palaeoseismic records and instrumental data from continental interiors increasingly show that these. Shield and composite volcanoes, a case study of montserrat. The configuration of tectonic plates, otherwise known as the global plate geometry, is determined in part from the distribution of shallow earthquakes and in part from earths surface morphology. Section 3 earthquakes, volcanoes, and plate tectonics 227. This causes the big plates of crust to move and its the moving of these plates that causes mountains and volcanoes to form.
San andreas fault slide by slide description fault movement, especially at plate boundaries, is largely an underground or even underwater process hidden from our view. At plate boundaries, plates collide, move apart, move under or over each other, or slide past one another. A tectonic earthquake occurs where tectonic plates meet, an area known as the boundary. Earthquakes occur at the following three kinds of plate boundary. I handed each of my kids a dish with solid but moveable cool whip mantle. The geological society uk plate tectonics activities. Download precambrian plate tectonics pdf ebook precambrian plate tectonics precambrian plate tectonics ebook author by plate tectonics quiz holt read and download ebook plate tectonics quiz holt pdf at public ebook library plate tectonics quiz holt pdf download. Partner content american museum of natural history earthquakes and volcanoes plate tectonics. Most earthquakes take place near plate boundaries, but not necessarily right on a boundary, and not. For example, in areas where there are mountains and volcanoes, plates are colliding. A plate boundary is where two plates meet and move relative to each other. They provide explanations such as why earthquakes and volcanic eruptions occur in very specific areas around the world, and how and why great mountain ranges like the alps and. Pdf plate tectonics and great earthquakes download full. Plate tectonics interactive tutorial with easytounderstand images and some multimedia.
Delve into the structure of the earth to learn what causes earthquakes, volcanoes, and more. Label the bottom tab transform and draw the plate movements here lift the tab. Plate tectonics the tectonic plates of the world were mapped in the second half of the 20th century. Use acrobat guide to plate tectonics and earthquakes reader. Plate boundary movements and their results foldable. The incidence and magnitude of earthquakes in british columbia over a onemonth period in march and april 2015. How tectonic plates are interacting can be determined by land features. Download pdf versiondownload doc versiondownload the. Using the tectonic outline map, create a cover page with drawing of volcanoes and hazards. Students will find out how the magnitude of an earthquake is measured using the. While the earths tectonic plates are in constant motion, the rigid upper layers of.
If youre behind a web filter, please make sure that the domains. Download plate tectonics volcanoes and earthquakes pdf ebook plate tectonics volcanoes and earthquakes plate tectonics volcanoes and earthquakes ebook author by renee loux plate tectonics volcanoes and earthquakes ebook free of registration rating. Superplumes beyond plate tectonics pdf free download. Tectonic plate boundaries activity and worksheetin this activity, students must use their knowledge and understanding of plate tectonics and identify and label each of the correct tectonic plate boundaries. This guide is an outline of the plate tectonic and earthquake seismology powerpoint presentations. An earthquake is the shaking caused by the rupture breaking and subsequent.
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