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... f. Australian g. Antarctic 3. Plates are a. In motion b. Continually changing in shape c. Continually changing size 4. Largest plate is the Pacific plate 5. Several plates include an entire continent plus a large area of seafloor 6. Plates move relative to each other at a very slow but continuous ra ...
... f. Australian g. Antarctic 3. Plates are a. In motion b. Continually changing in shape c. Continually changing size 4. Largest plate is the Pacific plate 5. Several plates include an entire continent plus a large area of seafloor 6. Plates move relative to each other at a very slow but continuous ra ...
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... 6. DO NOT push the cookie down on the icing. 7. Gently move the chocolate chip cookie and the graham cracker toward each other until the edge of the chocolate chip cookie is ON TOP of the edge of the graham cracker. 8. This models how the oceanic plate is subducted below the continental plate. When ...
... 6. DO NOT push the cookie down on the icing. 7. Gently move the chocolate chip cookie and the graham cracker toward each other until the edge of the chocolate chip cookie is ON TOP of the edge of the graham cracker. 8. This models how the oceanic plate is subducted below the continental plate. When ...
Station - Scioly.org
... 1. The map below shows the location of the Mid-Atlantic Ridge. Which statement best describes what is occurring at this location? A. Two oceanic plates are converging, forming a transform fault. B. Two oceanic plates are subducting, forming a deep ocean rift valley. C. New oceanic crust is being for ...
... 1. The map below shows the location of the Mid-Atlantic Ridge. Which statement best describes what is occurring at this location? A. Two oceanic plates are converging, forming a transform fault. B. Two oceanic plates are subducting, forming a deep ocean rift valley. C. New oceanic crust is being for ...
Chapter 7
... 5. The part of the Earth that is a liquid is the a. crust. c. outer core. b. mantle. d. inner core. 6. The part of the Earth on which the tectonic plates are able to move is the a. lithosphere. c. mesosphere. b. asthenosphere. d. subduction zone. 7. The San Andreas fault is an example of a a. diverg ...
... 5. The part of the Earth that is a liquid is the a. crust. c. outer core. b. mantle. d. inner core. 6. The part of the Earth on which the tectonic plates are able to move is the a. lithosphere. c. mesosphere. b. asthenosphere. d. subduction zone. 7. The San Andreas fault is an example of a a. diverg ...
Plate tectonics Hydrosphere Magma Fault Outer Core Seismograph
... an instrument that records ground movements caused by earthquakes ...
... an instrument that records ground movements caused by earthquakes ...
6.F Post Assessment
... 1. Old oceanic crust is more dense than new oceanic crust because it is a. hot, new rock b. moving toward a deep-ocean trench c. cooled over time d. closer to the mid-ocean ridge 2. The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of a. ...
... 1. Old oceanic crust is more dense than new oceanic crust because it is a. hot, new rock b. moving toward a deep-ocean trench c. cooled over time d. closer to the mid-ocean ridge 2. The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of a. ...
Extinction Hypothesis B – Continental Drift
... @2001 WGBH Educational Foundation and Clear Blue Sky Productions, Inc. All Rights Reserved ...
... @2001 WGBH Educational Foundation and Clear Blue Sky Productions, Inc. All Rights Reserved ...
Chapter 2
... mantle rise and fall according to differences in temperature and buoyancy. Earth’s convection is driven mainly by colder material sinking from the top. ...
... mantle rise and fall according to differences in temperature and buoyancy. Earth’s convection is driven mainly by colder material sinking from the top. ...
Plate Tectonics
... Recognized that crust of Earth was a shell. Surface could be broken and parts moved about. 2. Alfred Wegener (1912) German meteorologist-geophysicist Proposed theory of Continental Drift. Proposed continents float on a denser underlying interior of the Earth. CONTINENTS periodically break up and ...
... Recognized that crust of Earth was a shell. Surface could be broken and parts moved about. 2. Alfred Wegener (1912) German meteorologist-geophysicist Proposed theory of Continental Drift. Proposed continents float on a denser underlying interior of the Earth. CONTINENTS periodically break up and ...
Plate Tectonic Notes: Lab Science 9
... 5. Which layer of the earth consists of the upper part of the semi-solid mantle? ...
... 5. Which layer of the earth consists of the upper part of the semi-solid mantle? ...
Earth`s Interior
... Once geologists knew only a few facts about Earth. They knew it was a sphere with seven great landmasses, or continents. Now they know that Earth looks different today than it did millions of years ago. Geologists divide the forces that change the surface of Earth into two groups. Constructive force ...
... Once geologists knew only a few facts about Earth. They knew it was a sphere with seven great landmasses, or continents. Now they know that Earth looks different today than it did millions of years ago. Geologists divide the forces that change the surface of Earth into two groups. Constructive force ...
Study Guide Geology 303, SDSU Spring PEOPLE for TEST 1: 1
... the asthenosphere; there are a dozen large plates and many smaller ones) spread apart to open ocean basins, and then the oceanic plates are reabsorbed into the mantle at subduction zones (marked by trenches at Earth’s surface). Plate tectonics is the description of the movements of plates and the ef ...
... the asthenosphere; there are a dozen large plates and many smaller ones) spread apart to open ocean basins, and then the oceanic plates are reabsorbed into the mantle at subduction zones (marked by trenches at Earth’s surface). Plate tectonics is the description of the movements of plates and the ef ...
PLATE TECTONICS - Part I
... Convergent Transform 1) Divergent = Constructive: creation of new oceanic plate 2) Convergent = Destructive: destruction of old oceanic plate 3) Transform = Conservative: no creation or destruction of plates ...
... Convergent Transform 1) Divergent = Constructive: creation of new oceanic plate 2) Convergent = Destructive: destruction of old oceanic plate 3) Transform = Conservative: no creation or destruction of plates ...
plate tectonics
... • The theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. • These plates cover the entire Earth’s surface. • Some plates are under the ocean (ocean plates). • Other plates, known as continental plates, are under the Ea ...
... • The theory of plate tectonics suggests that Earth’s surface is divided into a dozen or so slow-moving plates, or pieces of Earth’s crust. • These plates cover the entire Earth’s surface. • Some plates are under the ocean (ocean plates). • Other plates, known as continental plates, are under the Ea ...
Plate Tectonics - teachearthscience.org
... •Only shallow earthquakes found near oceanic ridge •Deep earthquakes found only near oceanic trenches •Largest earthquakes near trenches ...
... •Only shallow earthquakes found near oceanic ridge •Deep earthquakes found only near oceanic trenches •Largest earthquakes near trenches ...
Volcano Types KEY
... crust that allows magma to rise up through to become a volcano. Seafloor spreading at midocean ridges is an another example. ...
... crust that allows magma to rise up through to become a volcano. Seafloor spreading at midocean ridges is an another example. ...
The Origin of Earth
... they revolve. 5. Most of the planets rotate in the same direction as the sun 6. Seven of the nine planets have moons. ...
... they revolve. 5. Most of the planets rotate in the same direction as the sun 6. Seven of the nine planets have moons. ...
Unit 3: Formation of Earth and Geology
... underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
... underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
Plate Tectonics Reading
... move apart, forming new crust along one plate edge, the crust on another edge of the plate is slowly forced back down into Earth’s mantle where it becomes molten rock again. This type of area, known as a subduction zone, forms when continental land masses collide with ocean plates or when two ocean ...
... move apart, forming new crust along one plate edge, the crust on another edge of the plate is slowly forced back down into Earth’s mantle where it becomes molten rock again. This type of area, known as a subduction zone, forms when continental land masses collide with ocean plates or when two ocean ...
22.4 Plate Tectonics
... There are about a dozen major tectonic plates. Most major plates contain both continental and oceanic crust. The edges of plates meet at plate boundaries. As the plates move apart, collide, or slide past each other, they cause changes in Earth’s surface. ...
... There are about a dozen major tectonic plates. Most major plates contain both continental and oceanic crust. The edges of plates meet at plate boundaries. As the plates move apart, collide, or slide past each other, they cause changes in Earth’s surface. ...
Passing Plates II
... horizontally past each other without much upward or downward movement. There is also no crust destroyed or produced by the movement of these plates. This boundary is also referred to as a strike-slip fault or fracture zone. The famous San Andreas Fault along the coast of California and northwestern ...
... horizontally past each other without much upward or downward movement. There is also no crust destroyed or produced by the movement of these plates. This boundary is also referred to as a strike-slip fault or fracture zone. The famous San Andreas Fault along the coast of California and northwestern ...
Arduino Lecture Lithospheric Structure of the North American Plate
... Seismic data on the North American continent are unevenly distributed and in some cases discrepancies exist between published models. In order to construct a consistent 3D crustal model with three layers in the crystalline crust, the following sequence of steps have been implemented: 1. Definition o ...
... Seismic data on the North American continent are unevenly distributed and in some cases discrepancies exist between published models. In order to construct a consistent 3D crustal model with three layers in the crystalline crust, the following sequence of steps have been implemented: 1. Definition o ...
Classroom Activities KS2 A3
... 5. Cut out and use this map to describe the location of Italy within the belts of earthquakes around the Earth. ...
... 5. Cut out and use this map to describe the location of Italy within the belts of earthquakes around the Earth. ...
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.