Assignment - 1
... 2.6. Summarize the various lines of evidence that we incorporated into the theory of plate tectonics? A: Wegener's lines of evidence ...
... 2.6. Summarize the various lines of evidence that we incorporated into the theory of plate tectonics? A: Wegener's lines of evidence ...
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... together as Pangaea. ……..a supercontinent. 200 million years ago Pangaea began to break apart. Pangaea divided into Laurasia and Gondwanaland… They further divided into the continents we know today…. ...
... together as Pangaea. ……..a supercontinent. 200 million years ago Pangaea began to break apart. Pangaea divided into Laurasia and Gondwanaland… They further divided into the continents we know today…. ...
topic 4 – the moving crust
... Converging plates – two plates that are pushing together 10. What is the Theory of Plate Tectonics? P.390 - The theory that Earth’s crust is broken up into pieces called plates. These plates are always moving on Earth’s mantle. 11. Who is Tuzo Wilson? P.390 - A Canadian scientist that contributed to ...
... Converging plates – two plates that are pushing together 10. What is the Theory of Plate Tectonics? P.390 - The theory that Earth’s crust is broken up into pieces called plates. These plates are always moving on Earth’s mantle. 11. Who is Tuzo Wilson? P.390 - A Canadian scientist that contributed to ...
History of the Earth Chapter 2: The Hadean
... “If we are to believe Wegener’s Hypothesis, we must forget everything which has been learned in the last 70 years and start over again.” –Critic of Continental Drift in ...
... “If we are to believe Wegener’s Hypothesis, we must forget everything which has been learned in the last 70 years and start over again.” –Critic of Continental Drift in ...
Plate tectonics study guide blank File
... 36. Describe the core: 37. What is the lithosphere? 38. What is the asthenosphere? 39. What is the mesosphere? 40. What is the outer core? 41. What is the inner core? 42. What was Rodinia? 43. Where is old crust destroyed? 44. Where is new crust created? 45. Describe the three ways mountains are for ...
... 36. Describe the core: 37. What is the lithosphere? 38. What is the asthenosphere? 39. What is the mesosphere? 40. What is the outer core? 41. What is the inner core? 42. What was Rodinia? 43. Where is old crust destroyed? 44. Where is new crust created? 45. Describe the three ways mountains are for ...
Chapter 3 Plate Tectonics Study Guide – Test Friday Oct 21
... Two plates slip past each other at a __________ boundary ...
... Two plates slip past each other at a __________ boundary ...
Name____________________________
... Mid-Ocean Ridge: An ocean floor feature resembling a mountain ridge on land. Trench: Deep canyon on the ocean floor formed by subduction. Hot Spot: A volcanic area that forms as a tectonic plate moves over a point heated from deep within the Earth's mantle. 1. Draw the three different types of plate ...
... Mid-Ocean Ridge: An ocean floor feature resembling a mountain ridge on land. Trench: Deep canyon on the ocean floor formed by subduction. Hot Spot: A volcanic area that forms as a tectonic plate moves over a point heated from deep within the Earth's mantle. 1. Draw the three different types of plate ...
The Earth`s Interior & Plate Tectonics
... The mantle extends about half way to the centre. It's made of solid rock and behaves like an extremely viscous liquid (This is the tricky bit... the mantle is a solid which flows) The convection of heat from the centre of the Earth is what ultimately drives the movement of the tectonic plates and ca ...
... The mantle extends about half way to the centre. It's made of solid rock and behaves like an extremely viscous liquid (This is the tricky bit... the mantle is a solid which flows) The convection of heat from the centre of the Earth is what ultimately drives the movement of the tectonic plates and ca ...
Introduction to Earthquakes EASA
... mid-ocean ridges and Earth is not expanding, somewhere material must be removed from the surface. It turns out that old ocean floor is “subducted” into the mantle at subduction zones. ...
... mid-ocean ridges and Earth is not expanding, somewhere material must be removed from the surface. It turns out that old ocean floor is “subducted” into the mantle at subduction zones. ...
Plate Tectonics Vocabulary Word Search
... ______________ 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. ...
... ______________ 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. ...
Richard Bailey “How Did Continents Begin?” COLLOQUIUM
... The plate tectonic revolution which began a half century ago solved some of the major puzzles of geology: why most mountains exist, why the ocean floor is so young, why the continents drift. But there are problems which plate tectonics sensu strictu does not solve. Why did a continental collision ma ...
... The plate tectonic revolution which began a half century ago solved some of the major puzzles of geology: why most mountains exist, why the ocean floor is so young, why the continents drift. But there are problems which plate tectonics sensu strictu does not solve. Why did a continental collision ma ...
Jeopardy - MrsHoranAcademicStrategies
... What type of rock make up the majority of continental crust? Which type of crust, oceanic or continental, is generally older? ...
... What type of rock make up the majority of continental crust? Which type of crust, oceanic or continental, is generally older? ...
oceanic ridges
... Collison zones form where both sides of a convergent boundary consist of continental (buoyant) material. Modern example: Himalayas ...
... Collison zones form where both sides of a convergent boundary consist of continental (buoyant) material. Modern example: Himalayas ...
Study Guide: Unit ESS2-1 and ESS2
... 5. Pull-apart rift zones are generally associated with a divergent plate boundary. 6. The temperature below which magnetic material can retain a permanent magnetization is called the currie point. 7. A very long-lived magma source located deep in the mantle is called a hot spot. 8. Linear, magnetic ...
... 5. Pull-apart rift zones are generally associated with a divergent plate boundary. 6. The temperature below which magnetic material can retain a permanent magnetization is called the currie point. 7. A very long-lived magma source located deep in the mantle is called a hot spot. 8. Linear, magnetic ...
Plate Tectonic Notes
... Scientists discovered Convection currents – movement of partly molten rock in the Asthenosphere, driven by, heated, rising material from mantle. The currents put friction on overlying layers of crust & cause plates to move. ...
... Scientists discovered Convection currents – movement of partly molten rock in the Asthenosphere, driven by, heated, rising material from mantle. The currents put friction on overlying layers of crust & cause plates to move. ...
Chapter 4.2 Plate Tectonics Theory
... Lithosphere—the oceanic and continental crust and the rigid upper mantle. Asthenosphere—a layer of slowly flowing, deformable rock under the lithosphere. Lithosphere is broken into separate plates that “float” on the denser asthenosphere. The continents and oceans are carried along on the moving l ...
... Lithosphere—the oceanic and continental crust and the rigid upper mantle. Asthenosphere—a layer of slowly flowing, deformable rock under the lithosphere. Lithosphere is broken into separate plates that “float” on the denser asthenosphere. The continents and oceans are carried along on the moving l ...
Plate Tectonics Review Worksheet
... 4. Two pieces of evidence for plate tectonics? Locations of earthquakes and volcanoes show the plate boundaries and ocean floor features. 5. What are the layers of the earth? Inner core – Iron Fe, outer core, mantle, crust – oxygen O and silicone ...
... 4. Two pieces of evidence for plate tectonics? Locations of earthquakes and volcanoes show the plate boundaries and ocean floor features. 5. What are the layers of the earth? Inner core – Iron Fe, outer core, mantle, crust – oxygen O and silicone ...
Layers of the Earth
... 2. hypothesis that the continents have moved 1. largest layer of Earth's surface,composed slowly to their current locations mostly of silicon,oxygen,magnesium,and iron 6. rigid layer of Earth's surface made up of the 2. outermost layer of Earth's surface crust and a part of the upper mantle ...
... 2. hypothesis that the continents have moved 1. largest layer of Earth's surface,composed slowly to their current locations mostly of silicon,oxygen,magnesium,and iron 6. rigid layer of Earth's surface made up of the 2. outermost layer of Earth's surface crust and a part of the upper mantle ...
A. Direction of Forces and the Movements B. Effects of Diastrophism
... Slab pull: Denser, colder plate sinks at subduction zone, pulls rest of plate behind it. Mantle convection: Hotter mantle material rises beneath divergent boundaries, cooler material sinks at subduction zones. So: moving plates, EQs, & volcanic eruptions are due to Earth‟s loss of internal heat. ...
... Slab pull: Denser, colder plate sinks at subduction zone, pulls rest of plate behind it. Mantle convection: Hotter mantle material rises beneath divergent boundaries, cooler material sinks at subduction zones. So: moving plates, EQs, & volcanic eruptions are due to Earth‟s loss of internal heat. ...
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.