Plot the locations of the 10 earthquakes below on the tectonic plate boundary map by using the latitude and longitude. Notice at the northern part of california, we have a divergent plate boundary or an offshore seafloor spreading center where new oceanic crust forms and then is pushed away. University of texas institute for geophysics technical report no. Describe the movement of plates at a transform boundary, and give some examples. Are all of the tectonic plates and their boundaries shown on the map. The areas where these plates collide often have increased volcanic and earthquake activity. For two of the plate boundaries identify at least two occurrences of mountain building, earthquakes, or volcanic activity. There are divergent boundaries, convergent boundaries and transform boundaries. As this map shows, we have a number of plate boundaries within or near the state. Third edition published 2006 by tom simkin, 1 robert i.
Mark the first plate boundary map with the symbols you devised indicating your groups boundary types. Scientists use seismographs that record earthquake waves to find the outline of the different crustal plates. Silver and others published a plate boundary observatory find, read and cite all the research you need on researchgate. Convergent colliding boundaries are shown as a black line with teeth, divergent spreading boundaries as solid red lines, and transform sliding alongside boundaries as solid black lines. Each person should mark the boundary types identified by the group on their own map. Digital files of the presentday plate boundaries are available below. Pacific plate south american plate plate boundary map this map is from dietmar mueller, univ.
Generally, the depth of an earthquake is related to the type of tectonic boundary in which it occurs. Each province is a piece of californias tectonic jigsaw puzzle. An important change in ideas about plate tectonics has been the recognition that the boundaries between plates are often broad zones of deformation, rather than the narrow boundaries originally assumed in plate tectonic theory. This dynamic planet world map of volcanoes, earthquakes, impact craters, and plate tectonics. Plates, plate boundaries, and driving forces earth. Discovering plate boundaries is a classroom activity designed to introduce students to the process of observing and classifying data, in addition to the fundamentals of plate tectonics. The southern edge of the caribbean plate, passing through northern south america, is an example. To answer that lets look at californias current plate tectonic setting. The lithosphere includes both the crust and the solid part of the a. The san andreas fault is a transform fault, a kind common on the sea floor but rarely found on land. Divergent margins and continental spreading centers. Click the left arrow once to see how the plates move.
Tectonic plates california institute of technology. 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. Plate tectonics, volcanoes and earthquakes cut and paste v. What plate do residents of tallahassee florida live on. The third type of plate boundary is called a conservative or transform boundary. For each boundary, students must figure out what happens to the plates, what landforms are produced, and whether earthquakes are created. Convergence data are shown by arrows describing direction and speed, relative to the plate across the boundary. Check out our image of the presentday plate boundaries. This is an area known for d43 understanding plate boundaries activity 45 materials for each student 1 completed student sheet 44. Most new crust forms at ocean ridge crests, is carried slowly away by plate movement, and is ultimately recycled deep into the earthcausing earthquakes and volcanism along the boundaries between moving tectonic plates. The nazca plate has been completed on the map as an example. Start with the major plates, and then work on the smaller ones. Label the bottom tab transform and draw the plate movements here lift the tab.
Draw a birdseye view of the plate boundary before and after the plate motion. In this worksheet, students fill out information about the three types of plate boundaries. Types of plate boundaries map identification activity. Another is the boundary between the north american plate and the eurasian plate. Plate boundary definition of plate boundary by the free. Use the plate boundary map on pages 712 7 to identify an example of each type. In addition, they helped scientists recognize that there are other types of plate boundaries. Published by the american geophysical union as part of the geodynamics series, volume 30. 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. What types of plate boundaries are not shown in the diagram on pages 176 177. A tectonic plate boundary is the fault line between crustal plates.
Plot the locations of the 10 volcanoes below on the tectonic plate boundary map by using the latitude and longitude. They show that lines of shallow earthquakes delineate many of the plate boundaries, that bands of deeper earthquakes and arc volcanoes locate the subduction. Which plates are diverging off the west coast of south america. Plate convergence vectors referenced from united states geological survey. Hence, although it used to be common to straddle the san. The theory of plate tectonics grew out of earlier hypotheses and observations. Mapping world plates helps students connect topography, earthquakes, volcanoes, and plates. Plate boundary movements and their results foldable. Plate boundary analysis troup county school district. Scientists believe this gravitycontrolled sinking is the driving force behind plate tectonics. Plate boundary zones broad belts in which boundaries are not well defined and the effects of plate interaction are unclear. Highlight the corresponding boundary on the world map on the back.
Use four different colored pencilsmarkers to code each front label. 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. Draw a circle on the map at the estimated location. Objectives learn where volcanoes and earthquakes occur. Complete the concept map using the terms in the list below.
A map to show location of the event and description a fact file key facts about the event or volcano e. The individual tectonic plates are labeled in white lettering. Once finished drawing boundary symbols, go back and draw arrows indicating the direction of plate movement at each boundary meeting. Closely spaced earthquakes with a range of depths that deepen i. The following overview of plate tectonics provides a view of the big picture of californias geologic heritage. This map highlights the earths tectonic plate boundaries. An example of this type of movement, called subduction, occurs at the boundary between the oceanic nazca plate and the continental south american plate. Superimposed in red are the more than 400 national park system sites. Geological survey map of tectonic plates show 21 of the major plates, as well as their movements and boundaries. This is a simple graphic organizer for plate boundaries. Plate relative motions the largescale features of the earth are geographic map distribution and topography and result. Plates crash into each other along convergent plate boundaries marked by volcanoes and mountain belts.
In general, plate boundaries are the scene of much geologic action earthquakes, volcanoes, and dramatic. Plate boundaries southern california earthquake center. It is called conservative because plate material is neither created nor destroyed at these boundaries, but rather plates slide past each other. At divergent boundaries in the oceans, magma from deep in the earths mantle rises toward the surface and pushes apart two or more plates. Tectonic plates map worksheet keep this sheet so you may. Using the key above, at what type of plate boundary do plates move away from each. The most famous of these is the 1200km 750mi long san andreas fault. A few boundaries defy simple classification and are referred to as plate boundary zones. 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. Plates, plate boundaries, and driving forces earth science. How would you describe the motion of plates in a transform boundary.
Each geomorphic province tells a separate tale of what happens along an active plate boundary. Identify, label, and describe each type of plate boundary for their countrys tectonic plate. These images show the locations of the plates and their boundaries in the earths crust. If the data vary on one side of the boundary but not on the other, devise a way of indicating that on your plate boundary map. This map shows the boundaries between the major plates. In plate tectonic theory, the lithosphere is broken into tectonic plates, which undergo some large scale motions. Identify a collision boundary on the map on pages 712 7. For example, a complicated earthquake pattern is produced by a wide, poorly understood plate boundary zone between the eurasian and african plates in the mediterranean region. Notice the circle the chips make in the pacific ocean.
Numerous earthquakes occur along plate boundaries as the rocks. The classic example of a transform plate boundary is the san andreas fault in california. This map shows many of the features that have shapedand continue to changeour dynamic planet. Volcanoes are formed as magma wells up to fill the gap, and eventually new crust is formed. Symbols white arrows show plate motion direction volcanoes generalized hot spot arrow direction of plate motion great earthquakes since 1900. It includes the plate movement, geological features and stress.
A map of global tectonic and volcanic activity over the last one million years, showing. The boundary regions between plates are aptly called plate boundaries. Tour of the maps pdf discovering plate boundaries rice. Plate tectonics information and facts national geographic. Sep 10, 2009 in plate tectonic theory, the lithosphere is broken into tectonic plates, which undergo some large scale motions. Plate boundary map acrobat pdf 225kb mar3 08 supporting referencesurls. Tectonic plates map worksheet keep this sheet so you may study for your test. Illustration of the main types of plate boundaries 55 k divergent boundaries divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Tectonic plates plate boundary referenced from bird, peter 2003 an updated digital model of plate boundaries. In this plate tectonic framework, large scale deformation is the local response of the lithosphere to induced stresses. Sections of the crust, called plates, push against each other due to forces from the molten interior of the earth. Additional information about this exercise can be found at. On the underside of the tab, write plates sliding past each other. These plates move and interact with one another to produce earthquakes, volcanoes, mountain ranges.
Plate tectonics map set, information and credits this is. Plate boundary synonyms, plate boundary pronunciation, plate boundary translation, english dictionary definition of plate boundary. The key points this out in the lower right hand corner. These observations about the distribution of earthquakes and volcanoes helped geologists define the processes that occur at spreading ridges and subduction zones. Jun 14, 2004 the earths crust is constantly in motion. Stewart 2 cartography and graphic design by will r. Resources for world plate boundaries word docs for world plate boundaries maps the map on the next page is offered in several formats for classroom use. Institute for geophysics university of texas at austin. The arrows below the boundary a label will move the plates. Here are two plate tectonics maps which show more detail than the maps above.