Symbols white arrows show plate motion direction volcanoes generalized hot spot arrow direction of plate motion great earthquakes since 1900. Oceanic plate op vs continental cp or oceanic plate how is it formed. Types of plate boundaries map identification directions b 1. Transform fault boundaries are one of three primary plate boundary types. It runs most of the length of california and into the ocean. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Bridge across the alfagaria rift valley in southwest iceland, that is part of. Seafloor spreading helps explain continental drift in the theory of plate tectonics. Type of boundary and motion at boundary diagram type of boundary and motion at boundary.
The most potent geologic forces in landscape formation are explained by the theory of plate tectonics. When the strength of the rocks at the plate boundary is exceeded, they move rapidly, catching up with the rest of. Recorded during a 2007 teacher workshop on earthquakes and tectonics. Earthquakes and volcanoes are most likely to occur either on or near plate boundaries. Use the table below and the map key on the types of plate boundaries map to draw the correct symbols identifying each type of plate boundary.
Type of sketch of direction of descriptionfeatures of plate boundary examples boundary boundary movement diverging plate boundary sliding boundary. Pdf introduction to plate boundaries and natural hazards. A divergent boundary is a boundary where two plates are moving away from each other. As the more dense oceanic plate op subducts under the less dense plate cp or op, it pulls the front edge. Continental drift, sea floor spreading and plate tectonics. The mediterraneanalpine region between the eurasian and african plates is a good example of a plate boundary zone. The guide contains links to totle introduction to plate tectonics and earthquakes teaching resources and a table of contents of teaching resources on this topic. Types of plate boundaries map identification activity. Video lecture on divergent, transform, and convergent types of plate boundaries. Etna in italy usually found at destructive plate boundaries steepsided and coneshaped molten lava eventually cools to form new rocks. How to create healthy boundaries university of kentucky. Students use a simple spherical model to examine the plate boundaries. The earths lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.
See full notes in pdf click here composite volcanoes made up of alternating layers of lava and ash and containing sticky lava which doesnt flow very far e. Seafloor spreading occurs at divergent plate boundaries which subsequently create midocean ridges. Divergent boundaries where new crust is generated as the plates pull away from each other. Collision boundary subduction oceancontinent oceancontinent oceancontinent oceancontinent. Many earth processes make more sense when viewed through the lens of plate tectonics. How to create healthy boundaries an intimate relationship is one in which neither party silences, sacrifices, or betrays the self and each party expresses strength and vulnerability, weakness and competence in a balanced way.
There are three types of convergent plate boundaries. Different plate boundaries create different landforms and events landform. Check your understanding of the types of tectonic plate boundaries with an interactive quiz and printable worksheet. What are the different types of plate tectonic boundaries. Unlike the other two types of plate boundaries in which new seafloor is created at divergent boundaries and where old seafloor is subducted at convergent boundaries, transform plate boundaries neither create nor destroy the seafloor. Bring the bottom of your paper up so that it almost meets the top of your page about 1 to 2 cm away from the top. Earthquakes occur at all three types of boundaries. Plates move apart at divergent plate boundaries such as the oceanic ridge system that separates the north american and eurasian plates in the north atlantic ocean. The earths lithosphere, which includes the crust and upper mantle, is made up of a series of. Divergent boundaries occur when two plates move in opposite directions, such as the pulling apart of north and south america from europe and africa, which, according to the u. As plates move, the new crust gradually moves away from the ridge.
Lightly shade in each tectoniclithospheric plate with a different color if possible. Introduction to plate tectonics and earthquakes lesson plans. Geomorphology and plate tectonics california state parks ca. What type of plate boundary does the san andreas fault. There are three principal types of plate boundary divergent, convergent, and transform. Plate tectonics information and facts national geographic.
According to the figure above, which of the following types of plate boundaries produce the deepest earthquakes. Introduction plate boundaries eric us department of education. The point where two plates meet is called a plate boundary. Four types of boundaries between tectonic plates sciencing. Which type of plate boundary occurs where two plates move apart, resulting in upwelling and partial melting of hot material from the mantle. On the present earth, the plate organization has formed two networks. The last type of plate boundary is the transform boundary, which is where two plates slide past one another. At convergent boundaries, plates move toward each other and collide. The earths plates move in different directions plates behave differently at different plate boundaries. Types of plate boundaries there are three types of plate boundaries. Where an oceanic plate collides with a continental plate, the oceanic plate tips down and slides beneath the continental plate forming a deep ocean trench long, narrow, deep basin. The structure of the earth, plate tectonics and landforms. New oceanic crust is formed through magma rising through the gap and cooling. The san andreas fault connects two divergent fault boundaries in the north and south.
The descent of one plate beneath the other and deep into the asthenosphere is the most common response to the space problem posed by convergence. As the overlying plate lifts up, it also forms mountain ranges. What are the three different types of convergent boundaries. Regional plate tectonics is driven by subduction, in which slabs require 515 myr to reach the boundary between the earths upper and lower mantle. This suggests a passive role of plate boundaries with respect to far field. Plate boundaries include include convergent divergent directions. Resources for world plate boundaries word docs for world plate boundaries mapsthe map on the next page is offered in several formats for classroom use. Plate boundaries the different types of plate boundaries gcse geography duration.
Plates move apart at divergent plate boundaries such as the oceanic. Types of plate boundaries henry county school district. This image shows the three main types of plate boundaries. As the plates of the earth move, three types of tectonic plate boundaries occur. Plate tectonics is a scientific theory describing the largescale motion of seven large plates and.
The types of plate tectonic boundares are divergent, convergent and transform conservative. Each boundary serves a different purpose, and mountains are also the result of activity on these boundaries. Plate boundaries interact with each other in 3 primary ways. We call that part of the mantle asthenosphere, to indicate that it is a weak zone, that decouples the plate from the overlying mantle actually, there is undoubtedly some drag forces that act between the two, but the lithosphere can move independently of the deeper mantle. Continental drift, seafloor spreading, and plate tectonics. Divergent plate boundaries, where plates move away from each other. A convergent plate boundary exists where two plates move toward one another converging platers that carry continents will produce mountain ranges, like the.
Start studying types, subtypes and examples of plate boundaries. The other two are divergent boundaries and convergent boundaries. Convergent plate boundaries, where plates move toward each other. Convergent plate boundaries are where one plate dives subducts under less dense crust to be recycled back into the asthenosphere.
Tectonic plate boundaries that do not fall neatly into one of the above tectonic boundary types are called plate boundary zones. Which type of plate boundary results from two or more plates coming together. Since not everyone has access to a largeformat printer we offer the poster as a 3page, tabloidsize pdf file that can be printed and taped together. Plate tectonics, our major paradigm for how the earth works, was established in the 1960ies following decades of observational research that culminated in key discoveries such as geomagnetic. This guide is an outline of the plate tectonic and earthquake seismology powerpoint presentations. The boundary regions between plates are aptly called plate boundaries. At some convergent boundaries, an oceanic plate collides with a continental plate.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Plates crash into each other along convergent plate boundaries marked by volcanoes and mountain belts. Students participate in a jigsaw activity to learn about types of plate boundaries, becoming an expert in one of five global datasets earthquakes, volcanoes, seafloor age, topography, and gravity and then sharing their expertise to build connections between the different datasets. Divergent boundaries where new crust is generated as. The earths lithosphere iscomposed of semirigid plates that move in different directions a great deal of action takes place along boundaries between plates. These boundary zones have plate movement deformation that occurs over a broad region, or belt. Most movement occurs along narrow zones between plates, plate boundaries, where the results of plate tectonic forces are most evident. Because the plates are rigid, they tend to stick together, even though they are constantly moving. Organization of the tectonic plates in the last 200myr ftp directory. These convergent boundaries also occur where a plate of ocean dives, in a process called subduction, under a landmass. Transform plate boundaries, where plates slide past one another. In plate tectonic theory, the lithosphere is broken into tectonic plates, which undergo some large scale motions.
A pdf guide to plate tectonics and earthquakes is also available. Setting boundaries is essential if we want to be both physically and emotionally healthy. 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. Plate boundary movements and their results foldable. The most striking result was the sharp bend in the stage pole locations of the iteration results for the nazca plate at 46myr, which. Because it is so important in understanding how the world works, plate tectonics is the first topic of discussion in this textbook.
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