Plate Tectonics Constructive Plate Margins
... Plate Tectonics Constructive Plate Margins Constructive plate margins, this is where there are two plates moving away from each other causing new oceanic crust to be formed and mid-ocean ridges are created by the build up of molten rock on the sea floor due to the mantle building up. This new crust ...
... Plate Tectonics Constructive Plate Margins Constructive plate margins, this is where there are two plates moving away from each other causing new oceanic crust to be formed and mid-ocean ridges are created by the build up of molten rock on the sea floor due to the mantle building up. This new crust ...
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... The evidence suggested that new basaltic crust must have been generated at the ridge and then been pushed to either side at a later time when the next cycle of lava got squeezed out of the middle of the ridge. As each new cycle of basaltic lava erupted, it cooled and preserved a record the Earth’s m ...
... The evidence suggested that new basaltic crust must have been generated at the ridge and then been pushed to either side at a later time when the next cycle of lava got squeezed out of the middle of the ridge. As each new cycle of basaltic lava erupted, it cooled and preserved a record the Earth’s m ...
4. Plate Tectonics II (p. 46-67)
... The evidence suggested that new basaltic crust must have been generated at the ridge and then been pushed to either side at a later time when the next cycle of lava got squeezed out of the middle of the ridge. As each new cycle of basaltic lava erupted, it cooled and preserved a record the Earth’s m ...
... The evidence suggested that new basaltic crust must have been generated at the ridge and then been pushed to either side at a later time when the next cycle of lava got squeezed out of the middle of the ridge. As each new cycle of basaltic lava erupted, it cooled and preserved a record the Earth’s m ...
Internal Forces that Shape the Earth (Plate Actions)
... Transform Boundary • Two plates slide against each other ...
... Transform Boundary • Two plates slide against each other ...
volcanism
... when the oceanic edge of one plate collides against the oceanic edge of another plate, so forming an island arc, e.g., the Sunda Arc, the Philippines, or when the oceanic edge of one plate collides against the continental edge of another plate, e.g., the Cascade Range ...
... when the oceanic edge of one plate collides against the oceanic edge of another plate, so forming an island arc, e.g., the Sunda Arc, the Philippines, or when the oceanic edge of one plate collides against the continental edge of another plate, e.g., the Cascade Range ...
Ch. 9 Review - 8th Grade Science
... • 1. The layer of the upper mantle that can flow is the: A - Asthenosphere • 2. Most scientists rejected Wegener’s theory of continental drift because the theory failed to explain: D – How the continents move • 3. Subduction of the ocean floor takes place at: D - Trenches • 4. Two plates collide wit ...
... • 1. The layer of the upper mantle that can flow is the: A - Asthenosphere • 2. Most scientists rejected Wegener’s theory of continental drift because the theory failed to explain: D – How the continents move • 3. Subduction of the ocean floor takes place at: D - Trenches • 4. Two plates collide wit ...
Blakeley Jones GEOL 1104 Review 6 – Earth`s Interior and Plate
... 28) The modern-day Red Sea is explained by plate tectonics theory because it is ________. a. a tiny remnant of a once immense ocean that was closed as Africa moved Asia b. the site of a transform fault along which Arabia is moving away from Africa c. a rift zone that may eventually open into a major ...
... 28) The modern-day Red Sea is explained by plate tectonics theory because it is ________. a. a tiny remnant of a once immense ocean that was closed as Africa moved Asia b. the site of a transform fault along which Arabia is moving away from Africa c. a rift zone that may eventually open into a major ...
esga3092 - 4J Blog Server
... 8. Circle the letter of the definition of reverse polarity. a. the loss of magnetism by iron-rich mineral grains when heated b. the gain of magnetism by iron-rich mineral grains when cooled c. what rocks that show the same magnetism as the present magnetic field have d. what rocks that show the oppo ...
... 8. Circle the letter of the definition of reverse polarity. a. the loss of magnetism by iron-rich mineral grains when heated b. the gain of magnetism by iron-rich mineral grains when cooled c. what rocks that show the same magnetism as the present magnetic field have d. what rocks that show the oppo ...
1 - kleung
... the question. 2 points each. 14. Movement of the earth’s crust away from an oceanic ridge is called ____________________________. 15. A thrust fault is a type of ____________________________ fault. 16. Along a strike-slip fault, the rock on either side of the fault plane moves ______________________ ...
... the question. 2 points each. 14. Movement of the earth’s crust away from an oceanic ridge is called ____________________________. 15. A thrust fault is a type of ____________________________ fault. 16. Along a strike-slip fault, the rock on either side of the fault plane moves ______________________ ...
Planet Earth Test Review
... 9. The Andes Mountains are located in Chile. The San Andreas Fault is in California. 10. According to the idea or the “theory of plate tectonics,” the surface of the earth is divided into large sections called what? Tectonic Plates ...
... 9. The Andes Mountains are located in Chile. The San Andreas Fault is in California. 10. According to the idea or the “theory of plate tectonics,” the surface of the earth is divided into large sections called what? Tectonic Plates ...
Name
... Both are predictable Both are influenced by weather Both can occur along plate boundaries All of the above ...
... Both are predictable Both are influenced by weather Both can occur along plate boundaries All of the above ...
Convergent Boundary - Plain Local Schools
... 3. focus – point underground where earthquakes start 4. epicenter - located above the focus at the surface 5. surface waves – do most of the damage Volcanoes 1. can form at both divergent and convergent boundaries 2. melted rock – magma below Earth’s surface lava above Earth’s surface 3. more dense ...
... 3. focus – point underground where earthquakes start 4. epicenter - located above the focus at the surface 5. surface waves – do most of the damage Volcanoes 1. can form at both divergent and convergent boundaries 2. melted rock – magma below Earth’s surface lava above Earth’s surface 3. more dense ...
Introduction to Plate Tectonics
... A hypothesis by Hess that states the following: In this process, new ocean floor forms along Earth's mid-ocean ridges, slowly moves across ocean basins, and finally sinks below the mantle in the deep ocean trenches. ...
... A hypothesis by Hess that states the following: In this process, new ocean floor forms along Earth's mid-ocean ridges, slowly moves across ocean basins, and finally sinks below the mantle in the deep ocean trenches. ...
Unit 7 Review Because of the weight of the rock above, pressure
... 20. Wegener’s idea that the continents slowly moved over Earth’s surface became known as ____________________ ____________________. Pg 327 21. Wegner supported his hypothesis with evidence from __________, ______________ and ________________. Pg 328-329 ...
... 20. Wegener’s idea that the continents slowly moved over Earth’s surface became known as ____________________ ____________________. Pg 327 21. Wegner supported his hypothesis with evidence from __________, ______________ and ________________. Pg 328-329 ...
Chapter 8 Study Guide – Earthquakes 1. What is an
... 13 Why is the inner core a solid at a higher temperature than the outer core at a lower temperature? 14. Describe the characteristics of Earth’s mantle. 15. What is the boundary between the outermost layer of the earth and the mantle called? Who is it named after? 16. What are the two types of crust ...
... 13 Why is the inner core a solid at a higher temperature than the outer core at a lower temperature? 14. Describe the characteristics of Earth’s mantle. 15. What is the boundary between the outermost layer of the earth and the mantle called? Who is it named after? 16. What are the two types of crust ...
Plate Tectonics
... Mountain ranges and rock sequences Unique organisms Glacial debris 200 million years ago ...
... Mountain ranges and rock sequences Unique organisms Glacial debris 200 million years ago ...
High rates of arc consumption by subduction processes: Some
... According to global estimates, ;21 km3 of oceanic crust is subducted each year beneath active margins (Crisp, 1984; Parsons, 1981). In addition to the oceanic crust, pelagic and terrigenous sediment as well as arc crustal material are dragged with the subducting plate (e.g., Scholl et al., 1977; Clo ...
... According to global estimates, ;21 km3 of oceanic crust is subducted each year beneath active margins (Crisp, 1984; Parsons, 1981). In addition to the oceanic crust, pelagic and terrigenous sediment as well as arc crustal material are dragged with the subducting plate (e.g., Scholl et al., 1977; Clo ...
Ch 1A Study Guide side 1
... water from nearby oceans or rivers may fill the valley and form a _____________ or ____________. 6) A ______ ____________ can provide a fixed point for measuring the speed & direction of plate movements because it generally stays in one place where the magma rises in a plume from the mantle. 7) Tect ...
... water from nearby oceans or rivers may fill the valley and form a _____________ or ____________. 6) A ______ ____________ can provide a fixed point for measuring the speed & direction of plate movements because it generally stays in one place where the magma rises in a plume from the mantle. 7) Tect ...
here - GeoCoops
... fluids sweated out percolate upward, helping to locally melt the overlying solid mantle above the subducting plate to form pockets of liquid rock (magma). 13. The newly generated molten mantle (magma) is less dense than the surrounding rock, so it rises toward the surface. Most of the magma cools an ...
... fluids sweated out percolate upward, helping to locally melt the overlying solid mantle above the subducting plate to form pockets of liquid rock (magma). 13. The newly generated molten mantle (magma) is less dense than the surrounding rock, so it rises toward the surface. Most of the magma cools an ...
What is Plate Tectonics?
... It is where 2 plates are moving away from each other and new crust is forming from magma that rises to the Earth’s surface between the 2 plates. ...
... It is where 2 plates are moving away from each other and new crust is forming from magma that rises to the Earth’s surface between the 2 plates. ...
2 - Tectonic Plates - UTEP Geological Sciences
... -Plates move away from one another. -Most divergent boundaries occur along the crests of oceanic ridges - New oceanic lithosphere is formed at the opening rift. These geologic regions are called Mid-Ocean ridges. ...
... -Plates move away from one another. -Most divergent boundaries occur along the crests of oceanic ridges - New oceanic lithosphere is formed at the opening rift. These geologic regions are called Mid-Ocean ridges. ...
Plate tectonics
... it heats rock in the mantle. This rock rises as it is less dense When it reaches near the top of the mantle the rock starts to cool and will eventually become denser and start to sink. The lithosphere is moved by these convection currents ...
... it heats rock in the mantle. This rock rises as it is less dense When it reaches near the top of the mantle the rock starts to cool and will eventually become denser and start to sink. The lithosphere is moved by these convection currents ...
The Birth of a Theory
... along the axis of the oceanic ridge system and are associated with seafloor spreading, which occurs at rates between about 2 and 15 centimeters per year. New divergent boundaries may form within a continent (for example, the East African rift valleys), where they may fragment a landmass and develop ...
... along the axis of the oceanic ridge system and are associated with seafloor spreading, which occurs at rates between about 2 and 15 centimeters per year. New divergent boundaries may form within a continent (for example, the East African rift valleys), where they may fragment a landmass and develop ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.