Volcano - Lamberth APES
... oceanic crust is subducted (pulled under)beneath a section of continental crust Subduction zone: Ocean plate slides under continental plate and forms a deep-ocean trench and continental volcanic arc ...
... oceanic crust is subducted (pulled under)beneath a section of continental crust Subduction zone: Ocean plate slides under continental plate and forms a deep-ocean trench and continental volcanic arc ...
Name: Date: : Aim#15b: Earth as a Planet
... Earth. Studying the behavior of earthquake waves to gather data about Earth’s interior is similar to using sound waves to see inside the human body. Observing seismic waves allows scientist to infer images of Earth’s interior. Data has shown that seismic waves bend when they encounter sharp changes ...
... Earth. Studying the behavior of earthquake waves to gather data about Earth’s interior is similar to using sound waves to see inside the human body. Observing seismic waves allows scientist to infer images of Earth’s interior. Data has shown that seismic waves bend when they encounter sharp changes ...
PLATE TECTONICS
... 2. Which statement is true about the Earth’s crust? A. Continental rocks are heavier than ocean ...
... 2. Which statement is true about the Earth’s crust? A. Continental rocks are heavier than ocean ...
PHYSICAL GEOLOGY LECTURE TEST # 3
... 19. S Waves move ? than P Waves. A.more slowly B.faster C.S Waves and P Waves move at the same rate of speed 20. There is ? simatic plate material than sialic plate material. A.less B.more C.the amount of sialic versus simatic material is the same 21. Oceanic plates form basins because they have a ? ...
... 19. S Waves move ? than P Waves. A.more slowly B.faster C.S Waves and P Waves move at the same rate of speed 20. There is ? simatic plate material than sialic plate material. A.less B.more C.the amount of sialic versus simatic material is the same 21. Oceanic plates form basins because they have a ? ...
the layers of the earth - NATSCI-A7
... hence called sial. On the other hand, oceanic crust, which is mainly composed of silica and magnesium, is called sima. ...
... hence called sial. On the other hand, oceanic crust, which is mainly composed of silica and magnesium, is called sima. ...
Internal Structure of the Earth and Pangean
... layer with a dense plastic consistency; and finally the thin, brittle and broken crust on which we live. Convective motion in the hot upper mantle moves the pieces of broken crust (called plates). This motion causes various interactions between plates that are collectively called plate tectonics. Th ...
... layer with a dense plastic consistency; and finally the thin, brittle and broken crust on which we live. Convective motion in the hot upper mantle moves the pieces of broken crust (called plates). This motion causes various interactions between plates that are collectively called plate tectonics. Th ...
Plate Boundaries - Westfield School
... A convergent plate boundary is found where a continental plate meets an oceanic plate. The oceanic plate descends under the continental plate because it is denser. As the plate descends it starts to melt due to the friction caused by the movement between the plates. This melted plate is now hot, liq ...
... A convergent plate boundary is found where a continental plate meets an oceanic plate. The oceanic plate descends under the continental plate because it is denser. As the plate descends it starts to melt due to the friction caused by the movement between the plates. This melted plate is now hot, liq ...
Plate Tectonics
... the core is heated and becomes less dense. It slowly rises while cooler rock nearer the surface is more dense and sinks. This forms convection currents just like those in our atmosphere. As these convection currents in the mantle circulate, they cause the continents above them to move. What Wegener ...
... the core is heated and becomes less dense. It slowly rises while cooler rock nearer the surface is more dense and sinks. This forms convection currents just like those in our atmosphere. As these convection currents in the mantle circulate, they cause the continents above them to move. What Wegener ...
Plate Tectonics PPT
... the core is heated and becomes less dense. It slowly rises while cooler rock nearer the surface is more dense and sinks. This forms convection currents just like those in our atmosphere. As these convection currents in the mantle circulate, they cause the continents above them to move. What Wegener ...
... the core is heated and becomes less dense. It slowly rises while cooler rock nearer the surface is more dense and sinks. This forms convection currents just like those in our atmosphere. As these convection currents in the mantle circulate, they cause the continents above them to move. What Wegener ...
the plate tectonic theory - The University of Southern Mississippi
... of active plumes include Iceland, the island of Hawaii, and Yellowstone National Park. As you can see from this listing, mantle plumes can pop up anywhere on Earth's surface, in the middle of a plate in oceanic crust like Hawaii, the middle of a continent like India (Deccan Traps) and Yellowstone Na ...
... of active plumes include Iceland, the island of Hawaii, and Yellowstone National Park. As you can see from this listing, mantle plumes can pop up anywhere on Earth's surface, in the middle of a plate in oceanic crust like Hawaii, the middle of a continent like India (Deccan Traps) and Yellowstone Na ...
Internet Webquest
... in class. You will need to read the information to determine the definition and example locations. There are images for each of the three types, but there is also a link towards the top of the page that is titled Illustration of the Main Types of Plate Boundaries. This will show all of the boundary ...
... in class. You will need to read the information to determine the definition and example locations. There are images for each of the three types, but there is also a link towards the top of the page that is titled Illustration of the Main Types of Plate Boundaries. This will show all of the boundary ...
Plate Boundaries
... plates that fit together like a jigsaw puzzle. These plates are made of rock, but the rock is, in general, lightweight compared with the denser, fluid layer underneath. This allows the plates to "float" on top of the denser material. The fluid dense material is called asthenosphere and in this activ ...
... plates that fit together like a jigsaw puzzle. These plates are made of rock, but the rock is, in general, lightweight compared with the denser, fluid layer underneath. This allows the plates to "float" on top of the denser material. The fluid dense material is called asthenosphere and in this activ ...
plate tectonic mapping
... INTRODUCTION & BACKGROUND: The data below represent worldwide earthquake and volcano locations given by their latitude and longitude. The goal of this investigation is to map the locations of these tectonic events to see what relationships can be deduced. PRE-LAB: Answer the following questions on t ...
... INTRODUCTION & BACKGROUND: The data below represent worldwide earthquake and volcano locations given by their latitude and longitude. The goal of this investigation is to map the locations of these tectonic events to see what relationships can be deduced. PRE-LAB: Answer the following questions on t ...
Topic 12 Student Handout copy
... The place on Earth’s surface lying directly above the focus. The interface between Earth’s crust and mantle. The boundary between two colliding plates. The energy waves given off by an earthquake. Major regions of volcanic activity that are usually in the interior of plates away from plate boundarie ...
... The place on Earth’s surface lying directly above the focus. The interface between Earth’s crust and mantle. The boundary between two colliding plates. The energy waves given off by an earthquake. Major regions of volcanic activity that are usually in the interior of plates away from plate boundarie ...
EQTip01 :: Final
... The convective flows of Mantle material cause the Crust and some portion of the Mantle, to slide on the hot molten outer core. This sliding of Earth’s mass takes place in pieces called Tectonic Plates. The surface of the Earth consists of seven major tectonic plates and many smaller ones (Figure 3). ...
... The convective flows of Mantle material cause the Crust and some portion of the Mantle, to slide on the hot molten outer core. This sliding of Earth’s mass takes place in pieces called Tectonic Plates. The surface of the Earth consists of seven major tectonic plates and many smaller ones (Figure 3). ...
Color and Lenses - Thomas C. Cario Middle School
... 8. The _____________ is made up of the crust and upper mantle (100 km deep). ...
... 8. The _____________ is made up of the crust and upper mantle (100 km deep). ...
57. Practice reading seismographs: Can You Read a Quake?
... b. Obsidian – Igneous. Black or banded hard volcanic glass formed from rapidly cooled lava. c. Siltstone – Sedimentary. Clastic sedimentary rock with silt-sized particles. Smaller pores than sandstone and higher clay content. Pore spaces may be empty, filled with chemical cement, or with fine grains ...
... b. Obsidian – Igneous. Black or banded hard volcanic glass formed from rapidly cooled lava. c. Siltstone – Sedimentary. Clastic sedimentary rock with silt-sized particles. Smaller pores than sandstone and higher clay content. Pore spaces may be empty, filled with chemical cement, or with fine grains ...
Plate Tectonics study guide
... 1. Two plates moving toward each other are called Convergent plate boundaries. 2. Continental Crust converging with another continental crust creates Mountains 3. Oceanic crust and continental crust converging creates subduction zones and volcanoes. Use the arrows below 4. Plates moving away from ea ...
... 1. Two plates moving toward each other are called Convergent plate boundaries. 2. Continental Crust converging with another continental crust creates Mountains 3. Oceanic crust and continental crust converging creates subduction zones and volcanoes. Use the arrows below 4. Plates moving away from ea ...
Geology 101
... subducted under North America. 10. Why are there deep sea trenches at the leading edge of a subduction zone? 11. At the mid-oceanic ridges, geologists believe that the Earth’s crust is pulling apart along what we call a divergent plate boundary. If the Earth is under tension in this area (which appe ...
... subducted under North America. 10. Why are there deep sea trenches at the leading edge of a subduction zone? 11. At the mid-oceanic ridges, geologists believe that the Earth’s crust is pulling apart along what we call a divergent plate boundary. If the Earth is under tension in this area (which appe ...
Getting to Know: Why Earthquakes Occur
... The crust is made up of many large pieces, called tectonic plates. Tectonic plates fit together like a giant jigsaw puzzle. Some parts of this puzzle are above sea level and form the continents, and other parts are below sea level, comprising the ocean floor. Because tectonic plates rest on partiall ...
... The crust is made up of many large pieces, called tectonic plates. Tectonic plates fit together like a giant jigsaw puzzle. Some parts of this puzzle are above sea level and form the continents, and other parts are below sea level, comprising the ocean floor. Because tectonic plates rest on partiall ...
The Planet Oceanus
... – hot, slowly flowing layer of the upper mantle • the Mesosphere (Lower Mantle) – rigid layer, similar chemically to the asthenosphere but very different physically • the Outer core – thick liquid layer • the Inner core – solid layer (due to tremendous pressure) ...
... – hot, slowly flowing layer of the upper mantle • the Mesosphere (Lower Mantle) – rigid layer, similar chemically to the asthenosphere but very different physically • the Outer core – thick liquid layer • the Inner core – solid layer (due to tremendous pressure) ...
Inside the Earth Study Guide The format on tests and quizzes is a
... 4. What do the particles in each look like? 5. What is the difference between a solid and a plastic solid? 6. What are the 5 physical layers and how are they different in their physical properties? 7. Even though it is the hottest in the center of the earth, why is the inner core solid, while the ou ...
... 4. What do the particles in each look like? 5. What is the difference between a solid and a plastic solid? 6. What are the 5 physical layers and how are they different in their physical properties? 7. Even though it is the hottest in the center of the earth, why is the inner core solid, while the ou ...
The Appalachian Story sheet
... 16. The layers of mud are now tilted almost ______________________ to their original position. 17. Evidence for the over-riding thrust fault still visible is shown by the presence of crushed rocks, which is referred to by a French name for mixture: "____________________________". 18. The original sp ...
... 16. The layers of mud are now tilted almost ______________________ to their original position. 17. Evidence for the over-riding thrust fault still visible is shown by the presence of crushed rocks, which is referred to by a French name for mixture: "____________________________". 18. The original sp ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.