plate boundary map with arrows

Found inside – Page 129Lineament and ship track map. All single lines represent, 3.5 or 12 kHz data. SeaMARC II coverage is shown by large envelopes (with no exaggeration) that designate the side-scan coverage, which is 10 km along single transit tracks. 1. Figure 1: Map of the North American - Caribbean tectonic plate boundary. Using the Tecton ic Plate Map (Map 2), identify each of the plate bo undaries listed in Table 1 shown below. 25. Image by the United States Geological Survey. ), Plate Tectonics and Our National Parks—Site Index, Plate Tectonics—The Unifying Theory of Geology, Tectonic Settings of NPS Sites—Master List. [1] b Identify the type of tectonic plate boundary that exists at the Juan de Fuca Ridge. The San Andreas Fault and Queen Charlotte Fault are transform plate boundaries developing where the Pacific Plate moves northward past the North American Plate. About 200 million years ago, a large tectonic plate (called the Farallon Plate) started to subduct beneath the western edge of North America. answer choices. The green bubbles are GPS station locations. Here the Three Types of Plate Boundaries. The arrow represent the movement of each plate. [Symbols for plate-tectonic features are usually reserved for maps at scales of 1:500,000 or smaller] 22.23 . As the plates move past each other, they sometimes get caught and pressure builds up. Transform boundaries occur on the north and south sides of the Caribbean Plate. Found insideA highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Elaborate Refer to the hypothetical plate map below showing continents A and B separated by an ocean. Over time, the San Andreas transform plate boundary has grown longer as the Farallon Plate split into two separate plates—the Juan de Fuca Plate on the north, and the Cocos Plate on the south. 3. Hypothetical plate map Continent A Continent B 2. subduction. The Cascadia trench marks the subduction zone with the North American plate. 26. Found insideThis book provides an overview of the history of plate tectonics, including in-context definitions of the key terms. Lithosphere is destroyed near ocean trenches, where lithospheric plates descend into the mantle and are assimilated into the mantle. Place the clear acetate sheet over top of the map. 26.On the map, identify the two tectonic plates, one on each side of the Mid-Atlantic Ridge rift at Iceland, by writing their names on the lines provided on the map. 25.On the map, draw one arrow through point A and one arrow through point B to indicate the relative direction that each plate is moving to produce the Mid-Atlantic Ridge rift. If each plate is moving at a rate of 10 lem . California’s sheared-up landscape and earthquake hazards reflect the movement of the Pacific Plate past the edge of North America along a transform plate boundary that extends from the Mexican border to north of San Francisco. answer choices. Another is the boundary between the North American Plate and the Eurasian Plate. The relative motion of the plates is horizontal. Report an issue. Relatively shallow earth\൱uakes occur at divergent and transform boundaries and hotspots. The San Andreas Fault Zone is not the only active transform plate boundary with U. S. National Park Service sites. divergent plate boundaries; edges of . Found inside – Page 274We developed a map layer that includes a series of red arrows that illustrate the boundary type: arrows perpendicular to the boundary and pointing towards each other illustrate convergent boundaries, arrows perpendicular to the boundary ... Arrows show the relative direction of plate motion. Plates move at a rate of a few centimeters a year, about the same rate fingernails grow. Plate boundaries. %���� Briefly explain how the students will use the map and the resources on their handouts to answer the questions. Subduction of the Farallon Plate beneath the entire West Coast created a line of volcanoes from Alaska to Central America. 2 Introduction • Earth's lithosphere is divided into mobile plates. This resulted in a line of volcanoes stretching all the way from what is now Alaska to Central America. The map above shows names and generalized locations of Earth's major tectonic plates. Active volcanoes of the Lesser Antilles Island Arc form as the North American Plate subducts beneath the Caribbean Plate. 10.4 Plates, Plate Motions, and Plate-Boundary Processes. Click for larger map. The map of California in Figure 3 shows the location of the two GPS stations with the transform plate boundary drawn in black. Note that 1 0 obj B. divergent boundaries. The point on the seafloor where the colliding plates are in contact is normally considered to be the geographic location of the plate boundary. Other parks in the region, namely Pinnacles, Channel Islands and Joshua Tree national parks, Cabrillo National Monument and Santa Monica Mountains National Recreation Area, reveal evidence of the shearing, rotation, and uplift that occurs within the broad zone of deformation between the two plates. NP = National Park Let's look National Park Service sites in the Transverse Ranges include Santa Monica Mountains National Recreation Area and part of Joshua Tree National Park. The map at the top of this page shows the geographic location and extent of 15 major lithospheric plates. . There is not a legend on this map to tell you which plate boundary type is illustrated by each symbol (thick white line vs. black line with points). Found insidePresents the online edition of the publication "This Dynamic Earth: The Story of Plate Tectonics" (ISBN 0-16-048220-8) by W. Jacquelyne Kious and Robert I. Tilling, published by the U.S. Geological Survey (USGS) in Denver, Colorado. . Q. The dark lines between the plates represent the boundaries that separate them. The new Dynamic Earth wall map illustrates plate tectonics and features new bathymetry and naturally colored relief, as well as current volcano and earthquake data. SYMBOLS White arrows show plate motion direction Volcanoes (generalized) Hot spot (arrow shows direction of plate motion) Great earthquakes since 1900; before 1900 Channel Islands National Park includes five islands that are the tops of a mostly-submerged portion of the Transverse Ranges. Which feature is located at 20º North latitude and 109º West longitude? Q. An additional plate tectonic map that can be used to describe the plates is given in Figure 13. As the mid-ocean ridge separating the Farallon and Pacific Plates entered the subduction zone, the Farallon Plate separated into the Juan de Fuca and Cocos Plates. The edges of Earth's lithospheric plates have boundaries which are both well defined and poorly defined. Relative plate velocities are based on a fixed Africa plate. The Virgin Islands are in a broad zone where the landscape is being sheared up as the Carribean Plate slides eastward past the oceanic part of the North American Plate. The transform plate boundary between the Pacific and North American Plates in western California formed fairly recently. 2.How many plates are present? Found insideThis book addresses the range of Andean tectonic processes and their temporal and spatial variations. The lithosphere consists of the crust and small portion of the upper mantle. %PDF-1.5 they separated from eachother 2. The major plates are Eurasia, Pacific, India, Australia . (Arrows indicate the direction of . "With a population of over 250 million people, Indonesia is the fourth most populous country in the world (United Nations, 2013). Point Reyes National Seashore, Golden Gate National Recreation Area, and Pinnacles National Park present landscapes affected by the main line of movement, the San Andreas Fault. The broad zone of transform motion between the Pacific and North American plates formed numerous slivers of mountain ranges with narrow valleys in between. Movement of the plates over Earth's surface is termed plate tectonics. Perform the following instructions in the hypothetical plate map above. Hint: first identify what geologic features mark the boundaries between plates (separate different plates). 20 Questions Show answers. Seafloor topography map source: “Global sea floor topography from satellite and ship depth soundings,” 1997, by W. H. F. Smith and D. T. Sandwell, Science, v. 277, p. 1956-1962. Locations where plates are spreading (divergent boundaries) are shown in yellow. 3.On the cross section of the tectonic plate boundary, draw one arrow in each circle to indicate the general direction of plate motion near the earthquake epicenter. Questions 25 is based on the map below. The cumulative movement within the broad San Andreas transform plate boundary has had dramatic effects on a landscape that initially developed as part of an ocean/continent subduction zone. NM = National Monument This essential volume explores the slow but mighty shifts that created the continents and that continue to shape modern landscapes. Transform fault (arrows show relative motion) PLATE BOUNDARIES. It simply tells us that the plates are moving in a certain direction as influenced by the convection current of the mantle. The plate boundaries illustrated in the map in Figure 12 are suggested. The arrows show the general directions in Eventually the weakest card face (the San Andreas Fault) dominates within the broad transform plate boundary. Absolute plate velocities are shown by the cyan arrows in the global tectonic plate map at the right and relative plate velocities are shown by the yellow arrows. May be shown in other colors. Home » Plate Tectonics » Plate Tectonics Map. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new oceanic crust. 1.2 Plate Tectonics, Earthquakes, and Volcanoes. N Pres = National Preserve. Start with the major plates, and then work on the smaller ones. 3. Major Cascade volcanoes are labeled. Sawteeth point into ba-sin. The arrows show whether the plates are moving apart, moving together, or sliding past each other. PLATE BOUNDARIES Divergent margin Convergent margin Transform fault (arrows show relative motion) Map of Major Tectonic Plates and Select Great Earthquakes and Volcanoes. Other rocks in the San Francisco Bay Area were originally part of an accretionary wedge, similar to rocks found today in the coastal ranges of the Cascadia Subduction Zone in northern California, Oregon, and Washington. The dark lines between the plates represent the boundaries that separate them. Both plates are capped by oceanic crust. The lithosphere is divided into a number of tectonic plates. Lastly, Plate boundaries from The Plates Project, University of Texas Institute for Geophysics. By the end of 1967, Earth's surface had been mapped into a series of plates no post (Figure 4.4.1). Plate tectonics is the theory explaining the structure of the Earth's crust (and many associated phenomena) that result from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.. Lithosphere: composed of the crust and uppermost solid portion of the mantle. This substantially revised edition includes recently published information relating to plate tectonics and continental origin. The map shows the seven continents and several lithospheric plates. Letters in ovals are abbreviations for NPS sites listed above. Where are most of the divergent plate boundaries located around the globe— on landmasses or in ocean basins? Found insideThe text then ponders on the beginning of continental evolution, as well as the oldest rocks of the earth's crust, thermal history of the moon, and early history of the other planets. Found inside – Page 1This book is required reading for any advanced student or professional interested in sedimentology, plate tectonics, or petroleum geoscience. Additional resources for this book can be found at: www.wiley.com/go/busby/sedimentarybasins. This map was prepared by the National Park Service. Draw arrows on the map to show the relative direction the plates are moving. The outermost part of Earth's structure is known as the lithosphere. 4. The southern edge of the Caribbean Plate, passing through northern South America, is an example. Movement of the plates over Earth's surface is termed plate tectonics. Exhibits along the trail include the reconstruction of a fence that was offset 16 feet (5 meters) during the 1906 earthquake. Also, clicking on an arrow shows on the map below the arrows the locations of the particular types of plate boundaries. In most cases this is also the real motion.] 37. Three of the plates are labeled. 2. [Note that the arrows on the Tectonic Plate map represent relative motion of the plates with respect to one another. N&SP = National and State Parks Photo courtesy of Robert J. Lillie. Which diagram represents plate movement associated with transform faults such as those causing California earthquakes? (8 pts.) Friction between the plates keeps them from A map of global tectonic and volcanic activity over the last one million years, showing: active ridges, continental extensions, transform faults, ridge spreading rates and directions, continental rifts, subduction and overthrust zones, and generalized volcanic activity. According the theory of plate tectonics, Earth's outer shell is made up of a series of plates. The arrows show whether the plates are moving apart, moving together, or sliding past each other. Hachures point down-slope. The San Andreas Fault is just one of many active earthquake faults in a broad zone of shearing along the transform plate boundary in the San Francisco Bay Area. By looking at maps for the distribution of earthquakes and volcanoes worldwide (Figures 1.4-1.5), you can interpret the boundaries between the major tectonic plates. Draw an arrow to show which way the plate moved. The strike is the compass direction of a horizontal line on the plane. 1. Vincent S. Cronin, in Encyclopedia of Geology (Second Edition), 2021 Spatial Character of Plate Boundaries. Arrows have been added to indicate the movement of the plates. Earthquakes on the San Andreas Fault can greatly upset cities along its length, including the San Diego, Los Angeles, and San Francisco/Oakland areas. • The theory of plate tectonics grew out of earlier hypotheses and observations collected during exploration of the rocks of the ocean floor. The diagram below shows a model of the movement of two tectonic plates. Pillow basalt, formed as lava poured out on the ocean floor, was later scraped off the top of the subducting plate and thrust onto the edge of the continent. By the end of 1967, Earth's surface had been mapped into a series of plates (Figure 10.16). Look at the arrows along the USA and Canadian boundary. Thousands of earthquakes over millions of years have built this landscape not only along the major fault line—the San Andreas Fault—but also on other faults within the broad zone of shearing between the Pacific and North American plates. Forty million years ago, a large tectonic plate, known as the Farallon Plate, was between the Pacific and North American plates. Sometimes the valleys are partially filled with water, as at Point Reyes National Seashore, where Tomales Bay and Olema Valley follow the main trace of the San Andreas Fault. 2. Remnants of the ancient volcanic mountain chain remain. Images above modified from “Earth: Portrait of a Planet, by S. Marshak, 2001, W. W. Norton & Comp., New York. The granite rocks in the foreground are similar to those found in Yosemite National Park in the Sierra Nevada Mountains. When the plates collide, one plate often moves below the other plate. NRA = National Recreation Area If a segment of the San Andreas Fault is “locked” for a century, then a large earthquake might result in 200 inches (2 inches/year x 100 years) of movement along the fault in less than a minute. Strike and dip are a way of representing the three-dimensional orientation of a planar surface on a two-dimensional map. The long mountain ridges and narrow bays in the region surrounding U. S. Virgin Islands National Park are a product of compression due to the convergence, in addition to lateral motion due to shearing along the transform plate boundary. This book describes the growth and origins of earthquake science and identifies research and data collection efforts that will strengthen the scientific and social contributions of this exciting new discipline. As you slide your hands laterally past one another, a broad zone of shearing develops as several card faces slip. Continental drift and sea-floor spreading became widely accepted around 1965 as more and more geologists started thinking in these terms. Question 2 assessed students' ability to integrate scientific method of recognizing the specific In central and southern California, for example, the volcanoes have largely eroded away and massive areas of granite from the cooled magma chambers form portions of the Sierra Nevada Mountains, including Yosemite National Park. Click for larger map. National Park Service sites in the San Francisco Bay Area reveal a sheared-up, ancient subduction zone landscape developed along the San Andreas Fault. Don't worry if you can't name them all. The Juan de Fuca and Gorda ridges mark the divergent plate boundary (the spreading ridge) with the Pacific plate. 4 0 obj The Earth's lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.. A divergent boundary occurs when two tectonic plates move away from each other. Locations where plates collide (convergent boundaries) are shown in red. Found insideThis book is devoted to diverse aspects of earthquake researches, especially to new achievements in seismicity that involves geosciences, assessment, and mitigation. [Note that the arrows on the Tectonic Plate map represent relative motion of the plates with respect to one another. Instead, blocks of crust are torn apart in a broad zone of shearing between the two plates. The rising magma that can result from this type of plate movement may produce -. Note that the hotspot is not at a plate boundary. Convergent boundary - Two plates are moving towards each other. Modified from “Beauty from the Beast: Plate Tectonics and the Landscapes of the Pacific Northwest,” by Robert J. Lillie, Wells Creek Publishers, 92 pp., 2015, www.amazon.com/dp/1512211893. Tomales Bay is the surface expression of the San Andreas Fault, seen in the photo below. Map showing the geographic location of major mid-ocean ridges. The bottom of the Marianas Trench in the Pacific Ocean is 11 kilometers . The earthquake ruptured a large portion of the San Andreas Fault, including land that is now Point Reyes National Seashore and Golden Gate National Recreation Area. In general, plate boundaries are the scene of much geologic action - earthquakes, volcanoes, and dramatic topography such . Both plates are capped by oceanic crust. The teeth are on the upper plate. (Click on arrows and slide left and right to see labels. According the theory of plate tectonics, Earth's outer shell is made up of a series of plates.The map above shows names and generalized locations of Earth's major tectonic plates. Plate tectonics is a scientific theory. This atlas aims to provide the reader with key pointers for a spatial analysis of the social, economic and political dynamics at work in Jordan, an exemplary country of the Middle East complexities. . <> The grinding action between the plates at a transform plate boundary results in shallow earthquakes, large lateral displacement of rock, and a broad zone of crustal deformation. The magnitude 7.8 San Francisco Earthquake struck the morning of April 18, 1906. Mid-ocean ridges are divergent boundaries where convection currents in the mantle lift the ocean floor and produce a rift in the lithosphere that follows the crest of the ridge. National Park Service Sites (shown in red) On the east, the North American Plate is subducting westward, forming volcanoes of the Lesser Antilles Island Arc. Point Reyes National Seashore, California. These forces also create a sheared-up landscape that includes spectacularly beautiful coastlines and economically important harbors. endobj Modified from “Parks and Plates: The Geology of our National Parks, Monuments and Seashores,” by Robert J. Lillie, New York, W. W. Norton and Company, 298 pp., 2005, www.amazon.com/dp/0134905172. earthquakes and volcanoes . South American plate and Nazca Plate share the longest convergent boundary on earth, featuring Andes Mountains which extends over 7000km. The main Tectonic Plates boundaries and boundary types The Theory of Plate Tectonics or Continental Drift was not accepted for many years largely due to there not being any credible explanation available of a driving force that would be necessary for powering the movement of land masses that were Continental in scale and which could only be thought of as being of truly immense weight. Draw a picture of the plates with direction arrows similar to the animated diagram to show what is happening at a divergent boundary. 39. In a Divergent Boundary plates are moving _____ from each other. Question 1, with an accompanying map which contains arrows that show relative plate motions, assessed students ability to explain how Plate Tectonics Theory is formulated. Beginning about 30 million years ago, so much of the Farallon Plate was consumed by subduction that the Pacific and North American plates were in contact, forming the San Andreas transform plate boundary in western California. You show the Cascade volcanic arc as extending only where subduction is occurring, parallel to the convergent plate boundary and not past the ends of the convergent plate boundary. _____ [1] Nicolas Coltice, "Plate Tectonics", Geosciences 3D, December 2012. Click on the map and drag the cursor to focus on a continent and the nearest plate boundaries. The data maps used in Discovering Plate Boundaries are, a map of seafloor age, a map showing earthquake location and depth, a map showing locations of recent volcanic activity, and a map showing the Earth's . Transform boundaries - where plates slide passed each other. Divergent Plate Movement 17. • Plate tectonics describes the distribution and motion of the plates. Once you've named most of the plates, draw arrows to show the general plate motions. This map shows the three major plate boundaries in or near California. Whereas conventional maps can be expressed as outward-expanding formulae with well-defined central features and relatively poorly defined edges, Constant Scale Natural Boundary (CSNB) maps have well-defined boundaries that result from ... This is an earthquake. NS = National Seashore By the end of 1967, Earth's surface had been mapped into a series of plates (Figure 10.16). Figure 10.4.14. This volume consists of 10 chapters, including two new ones that deal with the Supercontinent Cycle and on Great Events in Earth history. 4. . This substantially revised edition includes recently published information relating to plate tectonics and continental origin. The broad zone of shearing at a transform plate boundary includes masses of rock displaced tens to hundreds of miles, shallow earthquakes, and a landscape consisting of long ridges separated by narrow valleys. are found at or near the boundary between two tectonic plates. Make a note to point out the arrows on the map and the legend; explain how these arrows do not correspond to the exact points of plate boundaries, but rather overall movement at that point. They were lifted out of the ocean as part of the accretionary wedge of an ancient subduction zone. The Earthquake Trail at Point Reyes weaves back and forth across the fault line. An example of a divergent boundary is the Mid-Atlantic Ridge between the African and South American Plate. In the early 1960s, the emergence of the theory of plate tectonics started a revolution in the earth sciences. Landscape map that shows the US part of the Juan de Fuca plate. The categories that are covered are the type of plate boundary, a picture of the boundary showing direction of movement, the location where each boundary occurs and another name for each boundary. motions.Record your answers in the answer sheet by indicating whether each number boundary is convergent, divergent, or transform. In Mexico, a combinatiion of divergent and transform plate boundary motion is opening the Gulf of California, causing the Baja Peninsula to separate from the rest of Mexico. For example, rocks found today in Point Reyes National Seashore north of San Francisco were originally part of the line of granite rocks formed beneath ancient subduction zone volcanoes. Photo by Robert J. Lillie. Doing some quick math, one can appreciate how dramatically plate-tectonic forces can affect the landscape, even in our lifetimes. This edition includes new data to support his theories, helping to refute the opponents of his controversial views. 64 illustrations. The Peru-Chile Trench marks the boundary between the (1) Pacific Plate and the Antarctic Plate (2) Nazca Plate and the South American Plate (3) North American Plate and the Cocos Plate (4) Caribbean Plate and the Scotia Plate. Nazca plate's melt subducts below the South American plate, causing crustal dilation which then uses the Paleozoic sedimentary rocks to compress and form fold and thrust belt. Geology, tectonic Settings of NPS Sites—Master List a reverse Fault is just one of faults! Indicating the direction of plate boundary... Yeats, R. S. ( )... This is also the real motion. on an arrow to show which way the at! 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Gorda ridges mark the divergent plate boundaries illustrated in the Photo below can appreciate how dramatically plate-tectonic forces affect... Move at a subduction zone as you slide your right hand the intact North plate. Red arrows show whether the plates much of the plate boundaries is which by looking at the plate boundary and... See how the students will use the map as an example boundaries ) are shown in orange show which the!
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