Go directly to Plate Tectonics activity (114K - requires Shockwave) Take a hard-boiled egg and crack its shell. Does the egg remind you of anything? The Earth, perhaps? The egg could be seen as a tiny model of the Earth. The thin shell represents the Earth's crust, divided into plates; within the shell is the firm but slippery mantle. Move the pieces of shell around. Notice how the shell buckles in some places and exposes "mantle" in other places. The same thing happens on Earth, b ...

Intro to Plate Tectonic Theory Plate tectonics is the theory that Earth's outer layer is made up of plates, which have moved throughout Earth's history. The theory explains the how and why behind mountains, volcanoes, and earthquakes, as well as how, long ago, similar animals could have lived at the same time on what are now widely separated continents. You probably wouldn't recognize the Earth if you could see it 225 million years ago. Back then, all the major continents formed ...

Active tectonics of the northern Dead Sea Fault System in Syria and Lebanon We are conducting an interdisciplinary study of the active tectonics of the Dead Sea Fault System (DSFS) in Syria and Lebanon. One motivation for this research is the lack of information on this key plate boundary in the eastern Mediterranean tectonic puzzle. In collaboration with researchers in the region, as well as colleagues in the U.S. and France, this project has several facets: Neotectonic/paleoseismic f ...

ResearchResearch FacilitiesResearch GroupsPhD OpportunitiesPhD Students Research activities within the Department of Geology fall into 3 broad areas encompassing the understanding of the Earth. These are not rigid subdivisions, rather, they represent a general framework to encourage and promote the multi-disciplinary activity fundamental to modern science, while allowing great flexibility to research groups and individuals. A wide range of proxies ...

Skip Navigation The theory of plate tectonics has done for geology what Charles Darwin's theory of evolution did for biology. It provides geology with a comprehensive theory that explains "how the Earth works." The theory was formulated in the 1960s and 1970s as new information was obtained about the nature of the ocean floor, Earth's ancient magnetism, the distribution of volcanoes and earthquakes, the flow of heat from Earth's interior, and the worldwide distribution of plant and a ...

Formation of Denali Layers of the Earth Density and Convection Currents Plate Movements Earthquake Legends Denali Main Page Credits drawing by Jon How Mt. McKinley Was Formed Some of Mt. McKinley, Denali, is made of granite and some is made of other kinds of rock. Over about 70 to 170 million years Mt. McKinley formed to about 20,320 feet high. Land along the edge of the Pacific plate has been pushed, scraped, and carried north to the northern end of the Pacific plate. ...

DEPARTMENT OF GEOLOGICAL SCIENCES People | News | Seminars | Research | Undergraduate Program | Graduate Program | Courses | Resources | Alumni & Friends | GeoClub Tectonics The interaction of tectonic and geomorphic processes governs what we see at the Earth’s surface. Streams flowing from top to bottom in this image are offset by the right-lateral San Andreas fault in the Carrizo Plains of California. Professor Ramón Arrowsmith’s active tectonic research combines detailed geologi ...

Tectonics of Terrain Accretion, Volcanism, and Strike-Slip Faulting, Alaska South-central Alaska has a rich tectonic history that included the collision and accretion of exotic terranes and episodes of regional strike-slip faulting. Research by faculty member Ron Cole and a number of students has focused on unraveling these types of regional tectonic events by studying the record of crustal deformation, volcanism, and basin development. This work has been conducted mostly within Denali N ...

Global Tectonic and Volcanic Activity of the Last One Million Years Paul D. Lowman Jr. Code 921, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 April 1997 Also see "Digital Tectonic Activity Map" Larger version (284k) To obtain a copy of this map please contact the author. Seismic Epicenters (39k) or (129k) Polar Seismicity (30k) or (100k) Polar Tectonics (35k) or (189k) This map is not copyrighted and may be freely reproduced if the source is credited. GLOBAL TE ...

The HartRAO Space Geodesy Programme Participant in Solid Earth Science using VLBI, GPS and SLR Figures: The topo map on the left is adapted from NASA GSFC. The map depicts the regional GPS network which is processed by HartRAO for crustal dynamics studies. The GPS satellite (Block IIF) image is borrowed from the USAF and the laser system image is from SGAPO (Space Geodesy and Altimetry Projects Office). The HartRAO 26 m antenna is shown illuminated by floodlights. Welcome t ...

In geologic terms, a plate is a large, rigid slab of solid rock. The word tectonics comes from the Greek root "to build." Putting these two words together, we get the term plate tectonics, which refers to how the Earth's surface is built of plates. The theory of plate tectonics states that the Earth's outermost layer is fragmented into a dozen or more large and small plates that are moving relative to one another as they ride atop hotter, more mobile material. Before the advent of plate t ...

Site Map Earth History Climate History Research Software Order Form Credits Animations Goal of the PALEOMAP Project The goal of the PALEOMAP Project is to illustrate the plate tectonic development of the ocean basins and continents, as well as the changing distribution of land and sea during the past 1100 million years. In the Earth History section of this website are full-color paleogeographic maps showing the ancient mountain ranges and shorelines, active plate boundaries ...

Plate Tectonics Lesson at a glance, Key Concepts, and Lesson Outcomes are available by clicking here. Click here for a list of references about plate tectonics. Click here for a list of activities and teaching suggestions about plate tectonics. Introduction Plate tectonics is a relatively new theory that has revolutionized the way geologists think about the Earth. According to the theory, the surface of the Earth is broken into large plates. The size and position of these plate ...

Plate Tectonics The evolution of species on the land is linked to and driven by various climatological and geological changes that operated on the land surface of the earth. As we will discuss later, the earth currently has significant climate variations on a timescale of 100,000 years. In addition, over the last 200-250 million years the earth is experiencing an era go global tectonic motion which makes the land surface a Dangerous Place to Live: Map of recent earthqu ...

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Geology : Plate Tectonics The progress of the earth sciences and the advancement of technologies associated with the understanding of our planet during the 1940's and 50's have led geologists to develop a new way of looking at the world and how it works. This exhibit explains the history of our new understanding of the Earth and provides a brief overview of the theories behind it. The history behind Plate Tectonics The mechanisms driving Plate Tectonics Plate tectonics animations Quicktim ...

Plate Tectonics It is now uniformly agreed that the crustal plates of the Earth are in horizontal motion. This is called continental drift colloquially, and plate tectonics (see also this summary) in technically more precise language. This is newly won knowledge. Although the idea has been around for almost a century, it was not generally accepted (indeed, was often considered crackpot) until the last few decades. The following animation illustrates the drift of the continental pl ...

The University of Edinburgh Department of Geology and Geophysics Research in Tectonics and Earth History This interdisciplinary group brings the observational and analytical elements of field geology, palaeontology, sedimentology, structural geology and geophysics to bear on the processes and dynamics of sedimentary basins, plate boundaries and continental margins. For many years it has used the Mediterraneanean region as a natural laboratory in which to study the opening and closure of the ...

Visit the Department of Geology and Geophysic's website! This site is maintained by Catherine.Hanks@gi.alaska.edu Last updated on June 2006

Visit the Department of Geology and Geophysic's website! This site is maintained by Catherine.Hanks@gi.alaska.edu Last updated on June 2006

Scientists now have a fairly good understanding of how the plates move and how such movements relate to earthquake activity. Most movement occurs along narrow zones between plates where the results of plate-tectonic forces are most evident. There are four types of plate boundaries: Divergent boundaries -- where new crust is generated as the plates pull away from each other. Convergent boundaries -- where crust is destroyed as one plate dives under another. Transform boundaries -- w ...

Latest Quakes EQ Facts & Lists Hazards & Preparedness For Kids Only Regional Websites Science & Technology HOME|ABOUT US|EQ GLOSSARY|FOR TEACHERS|PRODUCTS & SERVICES|DID YOU FEEL IT?|FAQ|SEARCH EQ Facts & Lists Plate Tectonics Earthquakes and Plate Tectonics The world's earthquakes are not randomly distributed over the Earth's surface. They tend to be concentrated in narrow zones. Why is this? And why are volcanoes and mountain ranges also found in these zones, too ...

Plate-Tectonics Theory According to the now generally accepted "plate-tectonics" theory, scientists believe that the Earth's surface is broken into a number of shifting slabs or plates, which average about 50 miles in thickness. These plates move relative to one another above a hotter, deeper, more mobile zone at average rates as great as a few inches per year. Most of the world's active volcanoes are located along or near the boundaries between shifting plates and are called "plate-boundar ...

Weldon Beauchamp Cornell University-Department of Geological Sciences Tectonic Evolution of the Atlas Mountains, North Africa Research Objectives: Studies of the tectonic history of the Atlas mountains, using a geographical information system (GIS) to integrate:geophysics ,field geology and remote sensing data. This research is in collaboration with : ONAREP- Office National de Recherches et d'Exploitations Petrolieres, Rabat, Morocco Moroccan Geological Survey-Ministere de ...

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