Sea Floor Structures
... glaciers cut deep canyons into the exposed land. Once sea level rose, these canyons were submerged and gave rise to much larger submarine canyons. The continental shelf typically extends outward varying distances (from 1/2 mile to 470 miles) at a gentle slope. At the end of this gentle slope, the sh ...
... glaciers cut deep canyons into the exposed land. Once sea level rose, these canyons were submerged and gave rise to much larger submarine canyons. The continental shelf typically extends outward varying distances (from 1/2 mile to 470 miles) at a gentle slope. At the end of this gentle slope, the sh ...
The cold and relatively dry nature of mantle forearcs in subduction
... forearcs could sequester a total of 2.6 × 1010 Tg of H2O globally, or about 2% of the mass of current global ocean water. From the slab dehydration models we estimate that 0.4 × 108 Tg per million years (Myrs) of H2O is released beneath the forearc mantle at depths less than 80 km. This water is der ...
... forearcs could sequester a total of 2.6 × 1010 Tg of H2O globally, or about 2% of the mass of current global ocean water. From the slab dehydration models we estimate that 0.4 × 108 Tg per million years (Myrs) of H2O is released beneath the forearc mantle at depths less than 80 km. This water is der ...
Directed Reading A
... ______ 2. The place where tectonic plates touch is known as the a. continental plate. c. magma zone. b. tectonic boundary. d. tectonic ridge. ______ 3. Which of the following is NOT a type of tectonic plate boundary? a. convergent boundary c. divergent boundary b. fault-block boundary d. transform b ...
... ______ 2. The place where tectonic plates touch is known as the a. continental plate. c. magma zone. b. tectonic boundary. d. tectonic ridge. ______ 3. Which of the following is NOT a type of tectonic plate boundary? a. convergent boundary c. divergent boundary b. fault-block boundary d. transform b ...
Ms Martinez Plate Tectonic Note taking sheet
... The Cascades are a volcanic mountain range that extends from Northern California to Oregon and Washington and even into Southern British Columbia. These are volcanic mountains that are formed by subduction. The subduction zone is caused by two convergent plate boundaries. One convergent boundary exi ...
... The Cascades are a volcanic mountain range that extends from Northern California to Oregon and Washington and even into Southern British Columbia. These are volcanic mountains that are formed by subduction. The subduction zone is caused by two convergent plate boundaries. One convergent boundary exi ...
Chapter Review - Oakman School News
... in the speeds of seismic waves that travel through the Earth’s interior to calculate the density and thickness of each of the Earth’s physical layers. As oceanic crust spreads away from a mid-ocean ridge, the crust carries bands that contain minerals that were aligned with Earth’s magnetic field whe ...
... in the speeds of seismic waves that travel through the Earth’s interior to calculate the density and thickness of each of the Earth’s physical layers. As oceanic crust spreads away from a mid-ocean ridge, the crust carries bands that contain minerals that were aligned with Earth’s magnetic field whe ...
Plate Tectonics
... Whiteboard Practice • What do Convergent Boundaries create when it’s two continental plates? • Mountains! • What do Convergent Boundaries create when its an oceanic and continental plate? • Subduction Zone • What type of boundary created mid-oceanic ridges? • Divergent ...
... Whiteboard Practice • What do Convergent Boundaries create when it’s two continental plates? • Mountains! • What do Convergent Boundaries create when its an oceanic and continental plate? • Subduction Zone • What type of boundary created mid-oceanic ridges? • Divergent ...
Earth Structure - Cal State LA
... The theory --the surface of the Earth is broken into large plates. The size and position of these plates change over time. The edges of these plates, where they move against each other, are sites of intense geologic activity, such as earthquakes, volcanoes, and mountain building. Plate tectonics ...
... The theory --the surface of the Earth is broken into large plates. The size and position of these plates change over time. The edges of these plates, where they move against each other, are sites of intense geologic activity, such as earthquakes, volcanoes, and mountain building. Plate tectonics ...
Theory of Plate Tectonics Cornell Notes
... human activities. Plate movements along diverging plate boundaries cause land subsidence. Forms rift valleys and ocean basins. Sometimes an uplift in one area results in subsidence in another. Ex: Texas to North Canada about 65-70 million yrs ago – the sea covered this entire area! A volcano is a we ...
... human activities. Plate movements along diverging plate boundaries cause land subsidence. Forms rift valleys and ocean basins. Sometimes an uplift in one area results in subsidence in another. Ex: Texas to North Canada about 65-70 million yrs ago – the sea covered this entire area! A volcano is a we ...
Plate Tectonics PowerPoint
... – Subduction occurs when one of the two converging plates descends beneath the other. – A subduction zone forms when one oceanic plate, which has become denser as a result of cooling, descends below another plate creating a deep-sea trench. – The subducted plate descends into the mantle and melts. – ...
... – Subduction occurs when one of the two converging plates descends beneath the other. – A subduction zone forms when one oceanic plate, which has become denser as a result of cooling, descends below another plate creating a deep-sea trench. – The subducted plate descends into the mantle and melts. – ...
Name Jordan Sullivan Date October 6, 2014 Period 1 Plate
... Roll your mouse over the image to find the definitions of the words below: Continental Crust – the Earth’s crust that makes up the continents Mountain – a high, large mass of Earth and rock that rises above the earth’s surface with steep or sloping sides 2. At divergent boundaries, tectonic plates a ...
... Roll your mouse over the image to find the definitions of the words below: Continental Crust – the Earth’s crust that makes up the continents Mountain – a high, large mass of Earth and rock that rises above the earth’s surface with steep or sloping sides 2. At divergent boundaries, tectonic plates a ...
Divergent plate boundaries are locations where plates are moving
... Effects of a convergent boundary between an oceanic and continental plate include: a zone of earthquake activity that is shallow along the continent margin but deepens beneath the continent, sometimes an ocean trench immediately off shore of the continent, a line of volcanic eruptions a few hundred ...
... Effects of a convergent boundary between an oceanic and continental plate include: a zone of earthquake activity that is shallow along the continent margin but deepens beneath the continent, sometimes an ocean trench immediately off shore of the continent, a line of volcanic eruptions a few hundred ...
File
... Roll your mouse over the image to find the definitions of the words below: Subduction Zone – The area where one plate is being pulled under the edge of another Magma – Molten rock, gases, and solid crystals and minerals Trench – a steep-sided depression in the ocean floor Volcano – a vent in the ear ...
... Roll your mouse over the image to find the definitions of the words below: Subduction Zone – The area where one plate is being pulled under the edge of another Magma – Molten rock, gases, and solid crystals and minerals Trench – a steep-sided depression in the ocean floor Volcano – a vent in the ear ...
Sea Floor Spreading Barrows
... underwater mountains that extend into all of Earth’s oceans. They are more than 50,000 km long Most are under hundreds of meters of water They reach the surface in a few places such as Iceland. Rift Valley - A steep sided valley splits the top of some mid-ocean ridges. ...
... underwater mountains that extend into all of Earth’s oceans. They are more than 50,000 km long Most are under hundreds of meters of water They reach the surface in a few places such as Iceland. Rift Valley - A steep sided valley splits the top of some mid-ocean ridges. ...
No Slide Title
... • are folded, faulted and metamorphosed • making a chaotic mixture of rocks termed a mélange ...
... • are folded, faulted and metamorphosed • making a chaotic mixture of rocks termed a mélange ...
Endogenetic processes and landforms
... faulting and vulcanicity. They take place mainly along the plate boundaries, which are the zones that are not stable. Endogenetic processes cause many major landform features. ...
... faulting and vulcanicity. They take place mainly along the plate boundaries, which are the zones that are not stable. Endogenetic processes cause many major landform features. ...
File - Mariana Gil
... Roll your mouse over the image to find the definitions of the words below: Continental Crust – the earth’s crust that makes up the mountains Mountain – a high, large mass of earth and rock that rises above the earth’s surface with steep or sloping sides. 2. At divergent boundaries, tectonic plates a ...
... Roll your mouse over the image to find the definitions of the words below: Continental Crust – the earth’s crust that makes up the mountains Mountain – a high, large mass of earth and rock that rises above the earth’s surface with steep or sloping sides. 2. At divergent boundaries, tectonic plates a ...
Slide 1
... common in this region. These earthquakes are often accompanied by uplift of the land by as much as a few meters. Mount Saint Helens is along the subduction zone of the Juan de Fuca plate (an oceanic plate) and the North American plate (a continental plate). ...
... common in this region. These earthquakes are often accompanied by uplift of the land by as much as a few meters. Mount Saint Helens is along the subduction zone of the Juan de Fuca plate (an oceanic plate) and the North American plate (a continental plate). ...
Unit 7 Chapter 23 Powerpoint
... • The Continental Slope and the Continental Rise Continental Slope • The continental slope begins at the shelf edge where depth increases rapidly. Continental Rise • The continental rise is several kilometers thick, descends gradually from the continental slope to the ocean floor. Turbidity Currents ...
... • The Continental Slope and the Continental Rise Continental Slope • The continental slope begins at the shelf edge where depth increases rapidly. Continental Rise • The continental rise is several kilometers thick, descends gradually from the continental slope to the ocean floor. Turbidity Currents ...
Plate tectonics
... • Oceanic-oceanic convergence • Definition: Two oceanic slabs converge and one descends beneath the other • How they move: Often forms volcanoes on the ocean floor • Land formation results: Volcanic island arcs forms as volcanoes emerge from the sea • Examples: include the Aleutian, Mariana, and Ton ...
... • Oceanic-oceanic convergence • Definition: Two oceanic slabs converge and one descends beneath the other • How they move: Often forms volcanoes on the ocean floor • Land formation results: Volcanic island arcs forms as volcanoes emerge from the sea • Examples: include the Aleutian, Mariana, and Ton ...
Station - Scioly.org
... D. Heat from within the mantle creates convection currents and causes one plate to move below another at point A. E. Pressure from the volcano is pushing plate A down into the mantle as an equal and opposite force. 3. *The map below shows a group of islands in the Pacific Ocean. The islands have man ...
... D. Heat from within the mantle creates convection currents and causes one plate to move below another at point A. E. Pressure from the volcano is pushing plate A down into the mantle as an equal and opposite force. 3. *The map below shows a group of islands in the Pacific Ocean. The islands have man ...
Plate Tectonics
... study in detail. They will have the remainder of the class period (approx. 10 minutes and half of next class). Findings must be presented in a written bulleted list: - their region - the number & type of icons - 3 specific facts found by clicking on those specific icons. - the location of their regi ...
... study in detail. They will have the remainder of the class period (approx. 10 minutes and half of next class). Findings must be presented in a written bulleted list: - their region - the number & type of icons - 3 specific facts found by clicking on those specific icons. - the location of their regi ...
Chapter 7, Section 3 Answer Key
... A ___ 11. When rock is heated, it becomes less dense and tends to a. rise. b. sink. c. move sideways. d. erupt. B ___ 12. When rock cools, it becomes more dense and tends to a. rise to the surface. b. sink below the surface. c. move sideways. d. push against the surface. 13. Density changes in the a ...
... A ___ 11. When rock is heated, it becomes less dense and tends to a. rise. b. sink. c. move sideways. d. erupt. B ___ 12. When rock cools, it becomes more dense and tends to a. rise to the surface. b. sink below the surface. c. move sideways. d. push against the surface. 13. Density changes in the a ...
Plate Tectonics - Galena Park ISD
... that supports plate tectonic theory. the student is expected to relate plate tectonics to the formation of crustal features (ex. folded mountain, rift valley, trench, volcanic mountains, and island arcs). Teaching Target: ...
... that supports plate tectonic theory. the student is expected to relate plate tectonics to the formation of crustal features (ex. folded mountain, rift valley, trench, volcanic mountains, and island arcs). Teaching Target: ...
Numerical models of slab migration in continental collision zones
... depth. A 40-km-deep continental crust is characterized by positive buoyancy, which creates a resisting force to subduction when the continental block inside the subducting plate arrives at the trench. The oceanic lithosphere is modelled without oceanic crust, since it does not affect the subduction ...
... depth. A 40-km-deep continental crust is characterized by positive buoyancy, which creates a resisting force to subduction when the continental block inside the subducting plate arrives at the trench. The oceanic lithosphere is modelled without oceanic crust, since it does not affect the subduction ...
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.