Plate Tectonics
... • Earthquakes often happen in areas with transform boundaries. • The San Andreas fault in California is a good example of this type of fault • Tend to have the most earthquakes. • Crust is not created or destroyed ...
... • Earthquakes often happen in areas with transform boundaries. • The San Andreas fault in California is a good example of this type of fault • Tend to have the most earthquakes. • Crust is not created or destroyed ...
File
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. ...
... insight to the mechanism for how the continents moved. • The magma which pushes up at the mid-ocean ridge provides the new land pushing the plates, and the subduction zones gobble up the land on the the other side of the plates. ...
Obj - davis.k12.ut.us
... 2. Divergent boundary – are the boundaries that move away from each other. The plate edges are pulled apart which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but do ...
... 2. Divergent boundary – are the boundaries that move away from each other. The plate edges are pulled apart which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but do ...
No Slide Title
... aesthenosphere, they interact among each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) C ...
... aesthenosphere, they interact among each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) C ...
Chapter 03
... aesthenosphere, they interact among each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) C ...
... aesthenosphere, they interact among each other. The result of these interactions is the existence of 3 types of boundaries: (a) Divergent: plates move away from each other, examples: * Divergent oceanic crust: the Mid-Atlantic Ridge * Divergent continental crust: the Rift Valley of East Africa (b) C ...
Dynamic Earth WebQuest
... 8. Plate Tectonics Theory has been widely accepted since the ___________’s. It states that Earth’s outer layer or _________________ is broken up into ________________. These plates hold ______________________ and _____________________. They are constantly _________________. 9. Continents over time B ...
... 8. Plate Tectonics Theory has been widely accepted since the ___________’s. It states that Earth’s outer layer or _________________ is broken up into ________________. These plates hold ______________________ and _____________________. They are constantly _________________. 9. Continents over time B ...
Chapter 7 Notes - Wachter Middle School
... 2. What “drives” the plates? Possible answers include...[See Figure 13 page 177] a. Convection current = the driving force of plate tectonics in which hot, plastic-like material from the mantle rises to the lithosphere, moves horizontally, cools, and sinks back to the mantle 1. The convection curren ...
... 2. What “drives” the plates? Possible answers include...[See Figure 13 page 177] a. Convection current = the driving force of plate tectonics in which hot, plastic-like material from the mantle rises to the lithosphere, moves horizontally, cools, and sinks back to the mantle 1. The convection curren ...
Practice Questions: Plate Tectonics
... D) The present climates at locations X and Y are similar. 17. Which statement best supports the theory of continental drift? A) Basaltic rock is found to be progressively younger at increasing distances from a mid-ocean ridge. B) Marine fossils are often found in deep-well drill cores. C) The presen ...
... D) The present climates at locations X and Y are similar. 17. Which statement best supports the theory of continental drift? A) Basaltic rock is found to be progressively younger at increasing distances from a mid-ocean ridge. B) Marine fossils are often found in deep-well drill cores. C) The presen ...
FREE Sample Here
... composed of high-silica-content minerals. Earth’s lithosphere overlies asthenosphere— distinguished by rock properties/behavior/strength: Lithosphere is more rigid; asthenosphere is more plastic/easily deformed. 2. What does oceanic lithosphere consist of and how thick is it? ANSWER: The top 7 km is ...
... composed of high-silica-content minerals. Earth’s lithosphere overlies asthenosphere— distinguished by rock properties/behavior/strength: Lithosphere is more rigid; asthenosphere is more plastic/easily deformed. 2. What does oceanic lithosphere consist of and how thick is it? ANSWER: The top 7 km is ...
Chapter 30 - Steady Server Pages
... The action in plate tectonics is almost always at the plate boundaries. Two plates moving towards each other form a convergent boundary 1. Ocean crust meets ocean crust 2. Ocean crust meets continental crust 3. Continental Crust meets continental crust Two plates moving away from each other form a d ...
... The action in plate tectonics is almost always at the plate boundaries. Two plates moving towards each other form a convergent boundary 1. Ocean crust meets ocean crust 2. Ocean crust meets continental crust 3. Continental Crust meets continental crust Two plates moving away from each other form a d ...
Guided Notes for Layers of the Earth and Convection
... ___________________ that the _______________ float on. Upper portion of _________________________. ...
... ___________________ that the _______________ float on. Upper portion of _________________________. ...
Plate Tectonics
... A combination of two other theories: 1. Continental Drift 2. Sea Floor Spreading ...
... A combination of two other theories: 1. Continental Drift 2. Sea Floor Spreading ...
Slideshow
... • Grade C – Describe the structure of the earth and the movement at plate boundaries • Grade B – Explain what is happening at each plate boundary and name the features that are formed. • Grade A - Explain with the use on annotated diagrams what is happening at each plate boundary and name the featur ...
... • Grade C – Describe the structure of the earth and the movement at plate boundaries • Grade B – Explain what is happening at each plate boundary and name the features that are formed. • Grade A - Explain with the use on annotated diagrams what is happening at each plate boundary and name the featur ...
Plate Movement ppt - Armuchee Middle School
... continental drift, (where it was thought that only the continents moved) is now the theory of plate tectonics where it includes the moving sea floor, too. Alfred Wegener (vay-guh-nur) hypothesized that the continents were once joined together as Pangaea 300 million years ago, and had drifted apart W ...
... continental drift, (where it was thought that only the continents moved) is now the theory of plate tectonics where it includes the moving sea floor, too. Alfred Wegener (vay-guh-nur) hypothesized that the continents were once joined together as Pangaea 300 million years ago, and had drifted apart W ...
The Power of the Earth
... An earthquake can happen on land or in the ocean. Earthquakes can rattle walls, cause giant waves, and even bring down buildings. Here is why earthquakes happen. The earth is not one solid rock. If you could drill deep into our planet, you would find four layers. The top layer is the crust. Below th ...
... An earthquake can happen on land or in the ocean. Earthquakes can rattle walls, cause giant waves, and even bring down buildings. Here is why earthquakes happen. The earth is not one solid rock. If you could drill deep into our planet, you would find four layers. The top layer is the crust. Below th ...
Plate Movement ppt
... continental drift, (where it was thought that only the continents moved) is now the theory of plate tectonics where it includes the moving sea floor, too. Alfred Wegener (vay-guh-nur) hypothesized that the continents were once joined together as Pangaea 300 million years ago, and had drifted apart W ...
... continental drift, (where it was thought that only the continents moved) is now the theory of plate tectonics where it includes the moving sea floor, too. Alfred Wegener (vay-guh-nur) hypothesized that the continents were once joined together as Pangaea 300 million years ago, and had drifted apart W ...
Plate Tectonics – Guided Notes
... 1. _________________ ___________________ : Occur where two plates slide past one another. • They move in opposite directions or in the same direction at different rates. Features: _____________________ The ________ ______________ ______________ is part of a transform plate boundary. It has been the ...
... 1. _________________ ___________________ : Occur where two plates slide past one another. • They move in opposite directions or in the same direction at different rates. Features: _____________________ The ________ ______________ ______________ is part of a transform plate boundary. It has been the ...
TeachernotesL1 32.50KB 2017-03-29 12:41:27
... Thinnest, coolest and least dense layer. Rocks are rich in silicon, oxygen, aluminium, potassium and sodium Separated from the mantle by the Mohorovijic (Moho) discontinuity. Varies in thickness from 5 to 70 km Two types of crust: oceanic and continental Oceanic crust is mainly made up of basa ...
... Thinnest, coolest and least dense layer. Rocks are rich in silicon, oxygen, aluminium, potassium and sodium Separated from the mantle by the Mohorovijic (Moho) discontinuity. Varies in thickness from 5 to 70 km Two types of crust: oceanic and continental Oceanic crust is mainly made up of basa ...
OUTDOOR SCIENCE SCHOOL VOC (#1 – Test)
... causes the rigid area of the crust to crack and form the lithospheric plates (b) asthenosphere – liquid, tar-like layer of the upper mantle below the lithosphere creating a convection current movement, which causes the plates to move (c) mesosphere – lower mantle, almost solid-like above the core (d ...
... causes the rigid area of the crust to crack and form the lithospheric plates (b) asthenosphere – liquid, tar-like layer of the upper mantle below the lithosphere creating a convection current movement, which causes the plates to move (c) mesosphere – lower mantle, almost solid-like above the core (d ...
PLATE TECTONICS
... 3. Transform Fault Boundaries • Forms when two plates are sliding past one another. • Scrape and move in series of sudden spurts of activity separated by periods of little or no movement. • Example: San Andreas Fault where the Pacific Plate is sliding past the North American Plate ...
... 3. Transform Fault Boundaries • Forms when two plates are sliding past one another. • Scrape and move in series of sudden spurts of activity separated by periods of little or no movement. • Example: San Andreas Fault where the Pacific Plate is sliding past the North American Plate ...
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.