answers
... 38. The process which occurs during the convergence of two oceanic plates, or an oceaniccontinental plate resulting in old oceanic plate (old sea floor) being recycled back down into the mantle is called: a. sea floor spreading b. convection c. subduction d. elimination 39. The result of two oceanic ...
... 38. The process which occurs during the convergence of two oceanic plates, or an oceaniccontinental plate resulting in old oceanic plate (old sea floor) being recycled back down into the mantle is called: a. sea floor spreading b. convection c. subduction d. elimination 39. The result of two oceanic ...
tectonic plates
... Ocean-Ocean Plate Collision • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocea ...
... Ocean-Ocean Plate Collision • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocea ...
Seafloor Spreading Notes Harry Hess He was a geology Professor
... Magma/Lava oozed up from the Earth’s mantle along the mid ocean ridges into the ocean. This created new Seafloor which then spread away from the ridge in both directions. As spreading continued, the older ocean floor cooled and sank Why Isn’t Earth Growing ? While Hess believed that as the O ...
... Magma/Lava oozed up from the Earth’s mantle along the mid ocean ridges into the ocean. This created new Seafloor which then spread away from the ridge in both directions. As spreading continued, the older ocean floor cooled and sank Why Isn’t Earth Growing ? While Hess believed that as the O ...
Continental Drift and Plate Tectonics
... As with earthquakes, volcanic activity is linked to plate-tectonic processes. Most of the world's active above-sea volcanoes are located near convergent plate boundaries where subduction is occurring, particularly around the Pacific basin. However, much more volcanism, producing about three quarters ...
... As with earthquakes, volcanic activity is linked to plate-tectonic processes. Most of the world's active above-sea volcanoes are located near convergent plate boundaries where subduction is occurring, particularly around the Pacific basin. However, much more volcanism, producing about three quarters ...
Along this axis of the Aleutian Trench lies the subduction zone, in
... One final side-trip: Mythology holds that Alfred Wegener died un-appreciated, and completely un-vindicated in 1930. There’s a delightful story writ in gravity studies of the ocean floor that tells us that this myth is not fully accurate. In the early 1920s, an intrepid Dutch geophysicist, Felix Ven ...
... One final side-trip: Mythology holds that Alfred Wegener died un-appreciated, and completely un-vindicated in 1930. There’s a delightful story writ in gravity studies of the ocean floor that tells us that this myth is not fully accurate. In the early 1920s, an intrepid Dutch geophysicist, Felix Ven ...
Plate Tectonics
... mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere. The asth ...
... mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere. The asth ...
Tectonic Plate Notes (M)
... denser plate back into the mantle forming ocean trenches. The plate is also burned up and produces volcanoes. This usually occurs along coastlines where continental crust meets oceanic crust. 10. Plate movement can alter Earth systems and produce changes in Earth’s surface such as faulting, earthqua ...
... denser plate back into the mantle forming ocean trenches. The plate is also burned up and produces volcanoes. This usually occurs along coastlines where continental crust meets oceanic crust. 10. Plate movement can alter Earth systems and produce changes in Earth’s surface such as faulting, earthqua ...
Tectonic Plate Theory PowerPoint Study Guide
... Oceanic crust slides under continental crust. Subducting crust slides under. Andes Mountains Chain in South America is an example. Mountains formed from volcanoes along the convergent boundary. ...
... Oceanic crust slides under continental crust. Subducting crust slides under. Andes Mountains Chain in South America is an example. Mountains formed from volcanoes along the convergent boundary. ...
Chapter 02 Earth Structure and Plate Tectonics
... 40. Which of Earth's layers contains the greatest volume of material? 41. The deepest portion of the lithosphere is formed from 42. The theory of drifting continents was proposed by 43. The mechanism causing lithospheric plates to move is thought to be 44. Higher seafloor heat flow values are found ...
... 40. Which of Earth's layers contains the greatest volume of material? 41. The deepest portion of the lithosphere is formed from 42. The theory of drifting continents was proposed by 43. The mechanism causing lithospheric plates to move is thought to be 44. Higher seafloor heat flow values are found ...
Plate Tectonics - Galena High School Library
... continental drift, powered by sea floor spreading ...
... continental drift, powered by sea floor spreading ...
Ocean Floor, Plate Tectonics, Water Test Review
... Types of convergent zones - ocean-ocean - ocean-continent (subduction) - continent-continent (collision) Features at plate boundaries Mountain, volcanoes, trenches, valleys and (earthquakes) Plate names (ocean names) African plate Indo-Australian plate Pacific plate Antarctic plate Juan de F ...
... Types of convergent zones - ocean-ocean - ocean-continent (subduction) - continent-continent (collision) Features at plate boundaries Mountain, volcanoes, trenches, valleys and (earthquakes) Plate names (ocean names) African plate Indo-Australian plate Pacific plate Antarctic plate Juan de F ...
Fourth lecture - 16 September, 2015
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
... The leading physicists of his day, however, were able to show that this was physically not possible. The proposed mechanism was thus discredited, so the entire hypothesis was set aside (by most!) as yet more wishful thinking. ...
Power Point - Fort Bend ISD
... more than a dozen slabs of rock called plates that rest on layer of the upper mantle -these plates carry earth’s oceans & continents ...
... more than a dozen slabs of rock called plates that rest on layer of the upper mantle -these plates carry earth’s oceans & continents ...
Plate Tectonics - Net Start Class
... E. Subduction – the sliding of sea floor beneath a continent or island arc 1. If the plate is made up of mostly sea floor it can be subducted down into mantle forming an ocean trench 2. If the leading edge of the palte is made of continental rock, the plate will not subduct. (too bouyant) 3. The am ...
... E. Subduction – the sliding of sea floor beneath a continent or island arc 1. If the plate is made up of mostly sea floor it can be subducted down into mantle forming an ocean trench 2. If the leading edge of the palte is made of continental rock, the plate will not subduct. (too bouyant) 3. The am ...
Testing the plate tectonics model Evidence for the plate tectonics
... convergent plate boundary • Subduction (Cont’d) • Oceanic-oceanic convergence • Two oceanic slabs converge and the older, denser one descends beneath the younger, more buoyant one. • Forms volcanoes on the ocean floor • Volcanic Island Arcs forms as volcanoes emerge from the sea • Examples include t ...
... convergent plate boundary • Subduction (Cont’d) • Oceanic-oceanic convergence • Two oceanic slabs converge and the older, denser one descends beneath the younger, more buoyant one. • Forms volcanoes on the ocean floor • Volcanic Island Arcs forms as volcanoes emerge from the sea • Examples include t ...
Milky Way Plate Boundary Simulation
... Where an oceanic plate collides with a continental plate, the oceanic plate tips down and slides beneath the continental plate forming a deep ocean trench (a long, narrow, deep basin). An example of this type of movement, called subduction, caused the big earthquake, nuclear plant disaster, and deva ...
... Where an oceanic plate collides with a continental plate, the oceanic plate tips down and slides beneath the continental plate forming a deep ocean trench (a long, narrow, deep basin). An example of this type of movement, called subduction, caused the big earthquake, nuclear plant disaster, and deva ...
Plate Tectonics Theory and Boundary Tree Map
... Plate Tectonicstheory that states the Earth’s Lithosphere is divided into tectonic plates that are able to move on top of the liquid-like rock making up the Asthenosphere. Plate Boundarylocation where tectonic plates touch. Boundary ...
... Plate Tectonicstheory that states the Earth’s Lithosphere is divided into tectonic plates that are able to move on top of the liquid-like rock making up the Asthenosphere. Plate Boundarylocation where tectonic plates touch. Boundary ...
Plate Tectonics Vocabulary Continental Drift The
... The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the m ...
... The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust The theory that pieces of Earth’s lithosphere are in constant motion , driven by convection currents in the m ...
Study questions for Quiz 8 Plate Tectonics – more questions on
... What two lines of paleomagnetic data support the idea of seafloor spreading? What does it mean that there have been magnetic reversals in the Earth’s past? What pattern do we see in the age of rocks and sediments moving away from the central rift valleys of the ocean ridges? Approximately how old is ...
... What two lines of paleomagnetic data support the idea of seafloor spreading? What does it mean that there have been magnetic reversals in the Earth’s past? What pattern do we see in the age of rocks and sediments moving away from the central rift valleys of the ocean ridges? Approximately how old is ...
Earthquake Unit Assessment Retake Preparation
... Reference materials: Lab 15:1, Lab 15.2, Lab 15.3b, Notes on Plate Movement, Plate Movement Checkpoint, textbook pgs. 174-5 and 182-3 3) Draw diagrams of the three types of plate boundaries: convergent (C-C, O-C, O-O), divergent (O-O, transform (any combination); then, write the characteristics of e ...
... Reference materials: Lab 15:1, Lab 15.2, Lab 15.3b, Notes on Plate Movement, Plate Movement Checkpoint, textbook pgs. 174-5 and 182-3 3) Draw diagrams of the three types of plate boundaries: convergent (C-C, O-C, O-O), divergent (O-O, transform (any combination); then, write the characteristics of e ...
Notes
... When 2 oceanic crusts collide they form an ocean _____________________. Ocean trenches are extremely_____________________ they have some amazing types of _______________ in them. 4. A t a ________________________________ boundary the plates ________________________ past each other. The name of the ...
... When 2 oceanic crusts collide they form an ocean _____________________. Ocean trenches are extremely_____________________ they have some amazing types of _______________ in them. 4. A t a ________________________________ boundary the plates ________________________ past each other. The name of the ...
Plate Tectonics Theory and Boundary Tree Map
... Plate Tectonicstheory that states the Earth’s Lithosphere is divided into tectonic plates that are able to move on top of the liquid rock making up the Asthenosphere. Plate Boundarylocation where tectonic plates touch. Boundary ...
... Plate Tectonicstheory that states the Earth’s Lithosphere is divided into tectonic plates that are able to move on top of the liquid rock making up the Asthenosphere. Plate Boundarylocation where tectonic plates touch. Boundary ...
Unit 4.2 Test Review Layer Composition Thickness State of Matter
... 10. At a convergent boundary of an oceanic and a continental plate, the oceanic plate will subduct under the continental plate. What will form above the subduction zone? __________________ a deep-ocean trench___________________________________________________________ 11. At a convergent boundary, a ...
... 10. At a convergent boundary of an oceanic and a continental plate, the oceanic plate will subduct under the continental plate. What will form above the subduction zone? __________________ a deep-ocean trench___________________________________________________________ 11. At a convergent boundary, a ...
Plate Tectonics_notes student
... A _____________ that all the continents were once joined together in ____________ _________________________. Pangaea is the name Wegener gave to the supercontinent. The word comes from the Greek word meaning, “_________________.” It was centered where _______________ is today and reached from pole t ...
... A _____________ that all the continents were once joined together in ____________ _________________________. Pangaea is the name Wegener gave to the supercontinent. The word comes from the Greek word meaning, “_________________.” It was centered where _______________ is today and reached from pole t ...
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.