No Slide Title - University of South Alabama
... together into a “supercontinent” he called Pangaea ...
... together into a “supercontinent” he called Pangaea ...
02_PlateTectonics-MeltingAGI10th-W2017
... linear after a finite yield strength is overcome. Most real plastics and pseudo-plastics (no yield strength) have decreasing (non-linear and thus non-newtonian) viscosity, as do ketchup, silly putty and mantle rock under the right conditions of stress and rates of applied force. Shear thickening (d ...
... linear after a finite yield strength is overcome. Most real plastics and pseudo-plastics (no yield strength) have decreasing (non-linear and thus non-newtonian) viscosity, as do ketchup, silly putty and mantle rock under the right conditions of stress and rates of applied force. Shear thickening (d ...
Uh... What did you say...? The continents MOVE?
... Can you feel the earth move under your feet? No, of course you can't. A man named Alfred Wegener (1880-1930) also did not feel the earth move under his feet, which makes it even more impressive that he figured out that the continents move! He began his career studying stars, then moved on to rocks, ...
... Can you feel the earth move under your feet? No, of course you can't. A man named Alfred Wegener (1880-1930) also did not feel the earth move under his feet, which makes it even more impressive that he figured out that the continents move! He began his career studying stars, then moved on to rocks, ...
Playful Plates
... boundaries, earthquakes occur as the plates pull away from each other. Volcanoes form between the plates, as magma rises upward from the underlying mantle. Two situations are possible at converging plate boundaries. First, only earthquakes occur when two plates collide (obduct), building a mountain ...
... boundaries, earthquakes occur as the plates pull away from each other. Volcanoes form between the plates, as magma rises upward from the underlying mantle. Two situations are possible at converging plate boundaries. First, only earthquakes occur when two plates collide (obduct), building a mountain ...
Writing and Bell Ringer 2-14-11
... Explain how the motions in the asthenosphere can move tectonic plates around Earth. ...
... Explain how the motions in the asthenosphere can move tectonic plates around Earth. ...
Milky Way Plate Tectonics
... 11. What landform do you see in YOUR Milky Way model right now? (Refer back to how you labeled your last drawing/how you answered question #6) ________________________________________ Based on the land form you just wrote on the line above, which type of convergent boundary do you have? (Circle acco ...
... 11. What landform do you see in YOUR Milky Way model right now? (Refer back to how you labeled your last drawing/how you answered question #6) ________________________________________ Based on the land form you just wrote on the line above, which type of convergent boundary do you have? (Circle acco ...
Drifting Continents
... 1. Convection in the aesthenosphere is thought to cause the plate movements A. Asthenosphere is soft & pliable layer of the mantle that flows and allows the plates to move B. Hot mantle material is less dense & rises, as it cools it sinks again ...
... 1. Convection in the aesthenosphere is thought to cause the plate movements A. Asthenosphere is soft & pliable layer of the mantle that flows and allows the plates to move B. Hot mantle material is less dense & rises, as it cools it sinks again ...
Introduction to Petrology
... concentration of ore minerals which in turn will help us prospect for them. Composition of the crust, mantle and core: Sources of information: As you are well aware, the earth as a whole has a layered structure, and can be broadly divided into a crust, a mantle, an outer core and an inner core (Fig. ...
... concentration of ore minerals which in turn will help us prospect for them. Composition of the crust, mantle and core: Sources of information: As you are well aware, the earth as a whole has a layered structure, and can be broadly divided into a crust, a mantle, an outer core and an inner core (Fig. ...
chapter home
... Plates move toward each other at convergent boundaries. One plate may subduct under the other, as happens at deep-sea trenches, or the two plates ...
... Plates move toward each other at convergent boundaries. One plate may subduct under the other, as happens at deep-sea trenches, or the two plates ...
Plate tectonics from space - Laboratoire de Géologie de l`Ecole
... map) are intended to outline intraplate deformation, i.e. tectonically active zones affected by on-going permanent deformation. In that sense, zones of elastic coupling (sometimes referred to as interplate deformation) are omitted, although they can be quite large (coupling at large transcurrent fau ...
... map) are intended to outline intraplate deformation, i.e. tectonically active zones affected by on-going permanent deformation. In that sense, zones of elastic coupling (sometimes referred to as interplate deformation) are omitted, although they can be quite large (coupling at large transcurrent fau ...
Population unit quiz
... • a/ The Caribbean and North American plates are moving towards each other due to convection currents in the mantle. They meet at a plate boundary where the North American plate is subducted beneath the Caribbean plate . The subducted plate melts and causes magma to rise to the surface to erupt as a ...
... • a/ The Caribbean and North American plates are moving towards each other due to convection currents in the mantle. They meet at a plate boundary where the North American plate is subducted beneath the Caribbean plate . The subducted plate melts and causes magma to rise to the surface to erupt as a ...
Earthquake and Earthquake Hazards
... surface that cuts and breaks the continuity of divergent and convergent plate margins. When it transects mid-oceanic ridges, the only active part of the fault where adjacent plates slide past each other is bounded by the axes of the disconnected ridge segment. Earthquakes generated along transform f ...
... surface that cuts and breaks the continuity of divergent and convergent plate margins. When it transects mid-oceanic ridges, the only active part of the fault where adjacent plates slide past each other is bounded by the axes of the disconnected ridge segment. Earthquakes generated along transform f ...
What are the characteristics of a mineral?
... Outer core- liquid part of core, made of molten iron and nickel Inner core – solid part of core, mostly made of solid iron Asthenosphere – a plastic layer of the mantle on which pieces of the lithosphere move Lithosphere- the crust and the rigid upper part of the mantle Seismic waves- earthquake wav ...
... Outer core- liquid part of core, made of molten iron and nickel Inner core – solid part of core, mostly made of solid iron Asthenosphere – a plastic layer of the mantle on which pieces of the lithosphere move Lithosphere- the crust and the rigid upper part of the mantle Seismic waves- earthquake wav ...
Platemargins 1.57MB 2017-03-29 12:41:58
... move parallel or nearly parallel to each other. 2. There is no creation or destruction of crust ...
... move parallel or nearly parallel to each other. 2. There is no creation or destruction of crust ...
Continental Drift
... As the seafloor spreads apart, magma is forced upward and flows from the cracks. It becomes solid as it cools and forms new seafloor. As new seafloor moves away from the mid-ocean ridge, it cools, contracts, and becomes denser. This denser, colder seafloor sinks, helping to form the ridge. The theor ...
... As the seafloor spreads apart, magma is forced upward and flows from the cracks. It becomes solid as it cools and forms new seafloor. As new seafloor moves away from the mid-ocean ridge, it cools, contracts, and becomes denser. This denser, colder seafloor sinks, helping to form the ridge. The theor ...
Plate Motion
... (2) convergent boundaries, where crust is destroyed as one plate dives beneath another; and (3) transform boundaries, where crust is neither produced nor destroyed as the plates slide horizontally past each other. Not all plate boundaries are as simple as the main types discussed above. ...
... (2) convergent boundaries, where crust is destroyed as one plate dives beneath another; and (3) transform boundaries, where crust is neither produced nor destroyed as the plates slide horizontally past each other. Not all plate boundaries are as simple as the main types discussed above. ...
Document
... • Certain land features form where plates collide. Other features form where plates separate. • Mountain ranges, island chains, and enormous valleys are possible signs of a plate boundary. • For example, the Great Rift Valley formed where the Arabian plate is splitting the African plate into two new ...
... • Certain land features form where plates collide. Other features form where plates separate. • Mountain ranges, island chains, and enormous valleys are possible signs of a plate boundary. • For example, the Great Rift Valley formed where the Arabian plate is splitting the African plate into two new ...
TCSS Earth Systems Unit 2 – Plate Tectonics Information
... Plate Tectonic Venn Diagram: This Venn Diagram should be used to compare the two ideas of continental drift and plate tectonics Plate Tectonic Activator: Reading comprehension activity discussing the formation of a mud volcano. Plate Tectonics Puzzle: Activity that will allow students to visualize t ...
... Plate Tectonic Venn Diagram: This Venn Diagram should be used to compare the two ideas of continental drift and plate tectonics Plate Tectonic Activator: Reading comprehension activity discussing the formation of a mud volcano. Plate Tectonics Puzzle: Activity that will allow students to visualize t ...
Subduction Zone—Plate Interaction
... Elastic strain—Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. The energy can be released by elastic strain, gravity, chemical reactions, or even the motion of massive bodies. Of all these the release of elastic strain is the most importan ...
... Elastic strain—Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. The energy can be released by elastic strain, gravity, chemical reactions, or even the motion of massive bodies. Of all these the release of elastic strain is the most importan ...
Evidence
... surface and provides a coherent account of its geological history. This theory is supported by mul(ple evidence streams—for example, the consistent paNerns of earthquake loca(ons, evidence of ocean floor spreading ...
... surface and provides a coherent account of its geological history. This theory is supported by mul(ple evidence streams—for example, the consistent paNerns of earthquake loca(ons, evidence of ocean floor spreading ...
Volcanoes
... Melting and plate tectonics The first two items in the list above show that melting, and consequently volcanic activity, is concentrated along constructive and destructive plate boundaries. Only transform plate boundaries are not associated with active volcanoes. Melting at mid-ocean ridges occurs b ...
... Melting and plate tectonics The first two items in the list above show that melting, and consequently volcanic activity, is concentrated along constructive and destructive plate boundaries. Only transform plate boundaries are not associated with active volcanoes. Melting at mid-ocean ridges occurs b ...
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.