Compare and contrast divergent, convergent, and transform
... In 1968, J.Tuzo Wilson developed a new theory combined the ideas of continental drift and seafloor spreading. This theory states that the crust and upper mantle are broken into plates and they move around on the mantel. ...
... In 1968, J.Tuzo Wilson developed a new theory combined the ideas of continental drift and seafloor spreading. This theory states that the crust and upper mantle are broken into plates and they move around on the mantel. ...
Objectives: Compare and contrast divergent, convergent, and
... In 1968, J.Tuzo Wilson developed a new theory combined the ideas of continental drift and seafloor spreading. This theory states that the crust and upper mantle are broken into plates and they move around on the mantel. ...
... In 1968, J.Tuzo Wilson developed a new theory combined the ideas of continental drift and seafloor spreading. This theory states that the crust and upper mantle are broken into plates and they move around on the mantel. ...
Tectonic History - Illinois State Geological Survey
... forces that have shaped the long and varied geological history of Illinois. In brief, the theory recognizes that the upper part of the Earth’s crust is composed of rigid tectonic plates (slabs) that slide laterally over a layer of weaker, viscous rock in the underlying upper mantle known as the asth ...
... forces that have shaped the long and varied geological history of Illinois. In brief, the theory recognizes that the upper part of the Earth’s crust is composed of rigid tectonic plates (slabs) that slide laterally over a layer of weaker, viscous rock in the underlying upper mantle known as the asth ...
File - Leaving Certificate Geography
... continental lithosphere Oceanic lithosphere heats and dehydrates as it subsides The melt rises forming volcanism E.g. The Andes ...
... continental lithosphere Oceanic lithosphere heats and dehydrates as it subsides The melt rises forming volcanism E.g. The Andes ...
Plate Tectonics
... • fossil plants could have been spread from one continent to another by winds or ocean current • polar wandering might have been caused by moving poles rather than by moving continents ...
... • fossil plants could have been spread from one continent to another by winds or ocean current • polar wandering might have been caused by moving poles rather than by moving continents ...
Earth`s Interior
... The Lithosphere • The “Plates” (Rocky) • Consists of the crust and the uppermost mantle. (Solid) • Each plate moves as one section of the Earth on top of the asthenosphere. ...
... The Lithosphere • The “Plates” (Rocky) • Consists of the crust and the uppermost mantle. (Solid) • Each plate moves as one section of the Earth on top of the asthenosphere. ...
plates - Tanque Verde School District
... 2. Subduction causes rocks to melt, and magma rises to surface to form volcanoes! 3. Examples: Cascades in US, Andes Mountains in South America. ...
... 2. Subduction causes rocks to melt, and magma rises to surface to form volcanoes! 3. Examples: Cascades in US, Andes Mountains in South America. ...
Inner Earth Vocabulary - Effingham County Schools
... Asthenosphere: The layer in Earth's upper mantle and directly under the lithosphere in which rock is soft and weak because it is close to melting. Crust: A think outer layer of rock above a planet's mantle, including all dry land and ocean basins. Earth's continental crust is 40KM thick on average a ...
... Asthenosphere: The layer in Earth's upper mantle and directly under the lithosphere in which rock is soft and weak because it is close to melting. Crust: A think outer layer of rock above a planet's mantle, including all dry land and ocean basins. Earth's continental crust is 40KM thick on average a ...
theory of plate tectonics
... 4. lithosphere = oceanic and continental crust and rigid upper mantle a. thin outer shell of earth b. less dense than material below which causes movement of plates = broken into sections 1) have identified 30 so far 2) interact together to create major surface features a) move toward each other an ...
... 4. lithosphere = oceanic and continental crust and rigid upper mantle a. thin outer shell of earth b. less dense than material below which causes movement of plates = broken into sections 1) have identified 30 so far 2) interact together to create major surface features a) move toward each other an ...
Seafloor Spreading - Paramus Public Schools
... – Divergent Plate boundaries • Deep Sea Trenches – Narrow Elongated depression in seafloor with very steep sides – Convergent Plate boundaries ...
... – Divergent Plate boundaries • Deep Sea Trenches – Narrow Elongated depression in seafloor with very steep sides – Convergent Plate boundaries ...
History of the Earth and its structure
... theory was not widely accepted because he could not supply a mechanism that accounted for the motion of the continents. In the 1950/60s the evidence came together and scientists concluded that the continents did drift. This process is called plate tectonics. ...
... theory was not widely accepted because he could not supply a mechanism that accounted for the motion of the continents. In the 1950/60s the evidence came together and scientists concluded that the continents did drift. This process is called plate tectonics. ...
9 Geography Investigating Australia`s Physical Environments Term 1
... Many fossils have been found which link continents together and support the idea that the continents were once joined together. They show that a plant or animal lived on the edge of two (or more) continents. This shows that the two areas would have had to have a similar climate (and so a similar lat ...
... Many fossils have been found which link continents together and support the idea that the continents were once joined together. They show that a plant or animal lived on the edge of two (or more) continents. This shows that the two areas would have had to have a similar climate (and so a similar lat ...
plate tectonics
... Most transform boundaries are found near mid-ocean ridges. One well-known transform boundary is the San Andreas fault system in California. It is located where the Pacific and North American plates slide past each other. ...
... Most transform boundaries are found near mid-ocean ridges. One well-known transform boundary is the San Andreas fault system in California. It is located where the Pacific and North American plates slide past each other. ...
earth-_ch_6_tectonic_plates_study_guide
... 14. What type of boundary is formed when plates slide past each other? 15. According to the continental drift theory, a single, huge continent once existed called TECs1.3.1 16. What type of boundary is formed when plates separate? ...
... 14. What type of boundary is formed when plates slide past each other? 15. According to the continental drift theory, a single, huge continent once existed called TECs1.3.1 16. What type of boundary is formed when plates separate? ...
File
... I’m an area of volcanic activity that often forms island chains and develops over rising plumes of magma A 100 ...
... I’m an area of volcanic activity that often forms island chains and develops over rising plumes of magma A 100 ...
Plate Tectonics
... Over millions of years, the erupted lava and volcanic debris pile up on the ocean floor until a submarine volcano rises above sea level to form an island volcano. Such volcanoes are typically strung out in chains called island arcs. Island arcs are generally curved. Examples include the Marianas and ...
... Over millions of years, the erupted lava and volcanic debris pile up on the ocean floor until a submarine volcano rises above sea level to form an island volcano. Such volcanoes are typically strung out in chains called island arcs. Island arcs are generally curved. Examples include the Marianas and ...
Sea Floor Spreading Plate Tectonics Review Game
... This diagram shows what kinds of plates colliding/converging to form a mountain? A.Two oceanic plates B.One oceanic plate and one continental plate C.Two continental plates ...
... This diagram shows what kinds of plates colliding/converging to form a mountain? A.Two oceanic plates B.One oceanic plate and one continental plate C.Two continental plates ...
Mechanisms of Plate Motion
... AND HOT SPOTS • Hot spots are created by mantle plumes. • Mantle plumes are hot currents that rise all the way from the core through the mantle. • Mantle plumes can come up under the crust and burn their way through to create hot spot volcanoes. ...
... AND HOT SPOTS • Hot spots are created by mantle plumes. • Mantle plumes are hot currents that rise all the way from the core through the mantle. • Mantle plumes can come up under the crust and burn their way through to create hot spot volcanoes. ...
crust, mantle
... form at the edge of a tectonic plate. How can you explain folded mountain ranges located in the middle of a tectonic plate? At the time they formed, the folded » mountains must have been on the edge of a » tectonic plate. New material was later added » to the tectonic plate, causing the folded » mou ...
... form at the edge of a tectonic plate. How can you explain folded mountain ranges located in the middle of a tectonic plate? At the time they formed, the folded » mountains must have been on the edge of a » tectonic plate. New material was later added » to the tectonic plate, causing the folded » mou ...
The Structure of the Earth and Plate Tectonics
... underneath the continental lithosphere Oceanic lithosphere heats and dehydrates as it subsides The melt rises forming volcanism E.g. The Andes ...
... underneath the continental lithosphere Oceanic lithosphere heats and dehydrates as it subsides The melt rises forming volcanism E.g. The Andes ...
Plate tectonics
... Sea to become wider than ever before. • Convergent: Himalayas are caused by the Indian plate crashing into the Asian plate. • Transform: San Andres Fault, California. ...
... Sea to become wider than ever before. • Convergent: Himalayas are caused by the Indian plate crashing into the Asian plate. • Transform: San Andres Fault, California. ...
無投影片標題
... isostatic equilibrium, a process analogous to a ship floating in water. • Some seismic waves – energy associated with earthquakes – can pass through the Earth. Analysis of how these waves are changed, and the time required for their passage, has told researchers much about conditions inside Earth. ...
... isostatic equilibrium, a process analogous to a ship floating in water. • Some seismic waves – energy associated with earthquakes – can pass through the Earth. Analysis of how these waves are changed, and the time required for their passage, has told researchers much about conditions inside Earth. ...
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.