Tectonic Plates
... • Less dense con8nental plate folds up into a mountain • A trench forms at the “elbow” between them ...
... • Less dense con8nental plate folds up into a mountain • A trench forms at the “elbow” between them ...
Review for Seafloor Spreading, Plate Tectonics
... Describe evidence from drilling samples. Describe evidence from magnetic stripes. When was the last time the Earth’s magnetic field changed? Describe subduction and where it happens. What does density have to do with seafloor spreading? What is happening to the Atlantic and Pacific Oceans – describ ...
... Describe evidence from drilling samples. Describe evidence from magnetic stripes. When was the last time the Earth’s magnetic field changed? Describe subduction and where it happens. What does density have to do with seafloor spreading? What is happening to the Atlantic and Pacific Oceans – describ ...
Plate Tectonics and Mountain Building – Study Guide Plate
... 8. A divergent boundary at two oceanic plates can result in a ____. 9. What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate? 10. The San Andreas fault is a geographic example of what type of fault boundary? 11. New ocean cr ...
... 8. A divergent boundary at two oceanic plates can result in a ____. 9. What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate? 10. The San Andreas fault is a geographic example of what type of fault boundary? 11. New ocean cr ...
Correctly define: Asthenosphere, convergent, divergent, epicenter
... Explain how Earth’s interior properties can be inferred from seismic data. Explain how damage could be minimized in the event of an earthquake. Explain the concept of the Richter scale. PLATE TECTONICS: Explain the difference between plate tectonics and continental drift. Give three observations whi ...
... Explain how Earth’s interior properties can be inferred from seismic data. Explain how damage could be minimized in the event of an earthquake. Explain the concept of the Richter scale. PLATE TECTONICS: Explain the difference between plate tectonics and continental drift. Give three observations whi ...
Plate Tectonics - Effingham County Schools
... the continental plate creating a subduction zone – Forms deep-ocean trench, volcanic coastal mountains ...
... the continental plate creating a subduction zone – Forms deep-ocean trench, volcanic coastal mountains ...
KEY
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
The Theory of Plate Tectonics
... – Mid-oceanic ridge forms as seafloor spreading creates new crust and seafloor as magma fills the gap created over geologic time. ...
... – Mid-oceanic ridge forms as seafloor spreading creates new crust and seafloor as magma fills the gap created over geologic time. ...
6th grade Science Unit 1.3 Structures of the Earth and Energy
... My learning targets: 6.7 Matter and energy. The student knows that some of Earth's energy resources are available on a nearly perpetual basis, while others can be renewed over a relatively short period of time. Some energy resources, once depleted, are essentially nonrenewable. 6.10 Earth and space. ...
... My learning targets: 6.7 Matter and energy. The student knows that some of Earth's energy resources are available on a nearly perpetual basis, while others can be renewed over a relatively short period of time. Some energy resources, once depleted, are essentially nonrenewable. 6.10 Earth and space. ...
Plate tectonics Assignment
... You can choose one of the three following topics to research: A: Continental Drift: Find out who came up with the ideas relating to continental drift. Detail the evidence that supported these ideas including (a) matching coastline (b) fossil evidence (c) similar rock structures from one continent to ...
... You can choose one of the three following topics to research: A: Continental Drift: Find out who came up with the ideas relating to continental drift. Detail the evidence that supported these ideas including (a) matching coastline (b) fossil evidence (c) similar rock structures from one continent to ...
The Theory of Plate Tectonics
... Collision 1: two plates of oceanic crust collide, and the more dense plate sinks underneath. Collision 2: a oceanic plate collides with a continental plate, and subduction occurs. Collision 3: two plates of continental crust collide, but neither sinks. Instead, they push up mountain ranges. ...
... Collision 1: two plates of oceanic crust collide, and the more dense plate sinks underneath. Collision 2: a oceanic plate collides with a continental plate, and subduction occurs. Collision 3: two plates of continental crust collide, but neither sinks. Instead, they push up mountain ranges. ...
Guided Notes for Plate Tectonics
... Convergent Boundaries Place where two plates __________________________________ causing a collision resulting in _________________________, ______________________, and ________________________________________________ . Types of Convergent Boundaries: _________________________________ _____ ...
... Convergent Boundaries Place where two plates __________________________________ causing a collision resulting in _________________________, ______________________, and ________________________________________________ . Types of Convergent Boundaries: _________________________________ _____ ...
Document
... • Molten asthenosphere can move • As minerals in the mantle break down (radioactive processes) generate heat • Heat rises upwelling plume • Eventually the warmth will be lost and the cold mantle will sink • MANTLE PLUMES – new term ...
... • Molten asthenosphere can move • As minerals in the mantle break down (radioactive processes) generate heat • Heat rises upwelling plume • Eventually the warmth will be lost and the cold mantle will sink • MANTLE PLUMES – new term ...
DCA-geoscience-exam-3-study-guide-key
... 17. What 2 processes can transform igneous rock into sedimentary rock? erosion, and sedimentation. 18. What 2 processes can transform sedimentary rock into igneous rock? ____________melting and cooling_______ 19. All igneous rocks begin as __magma____. 20. Heat and pressure inside the Earth's crust ...
... 17. What 2 processes can transform igneous rock into sedimentary rock? erosion, and sedimentation. 18. What 2 processes can transform sedimentary rock into igneous rock? ____________melting and cooling_______ 19. All igneous rocks begin as __magma____. 20. Heat and pressure inside the Earth's crust ...
compleate chap 10 lecture
... carrying plates along, and then decend at subduction zones where oceanic plates dive into the mantle. Continents, being less dense, are not subducted. Evidence for this is shown by higher heat flows measured at oceanic ridges. ...
... carrying plates along, and then decend at subduction zones where oceanic plates dive into the mantle. Continents, being less dense, are not subducted. Evidence for this is shown by higher heat flows measured at oceanic ridges. ...
4 layers of Earth and Plate Activity notes
... forms a ridge • When plates collide they create mountains this is called a collision zone • Appalachian mountains – Africa collided with North America during formation of Pangea • Destroy sea floor- ocean plates more dense than land plates, when they converge ocean plates slide under land plates ...
... forms a ridge • When plates collide they create mountains this is called a collision zone • Appalachian mountains – Africa collided with North America during formation of Pangea • Destroy sea floor- ocean plates more dense than land plates, when they converge ocean plates slide under land plates ...
Plate Tectonics Study Guide
... 27. Where do plates sink into trenches and back into the mantle? Convergent boundary, subduction zone ...
... 27. Where do plates sink into trenches and back into the mantle? Convergent boundary, subduction zone ...
Theory of plate tectonics - 8th Grade Social Studies
... crust is generated as the plates pull away from each other Convergent boundaries – where crust is destroyed as one plate dives under another Transform boundaries – where crust is neither produced nor destroyed as the plates slide horizontally past each other Plate boundary zones – broad belts in whi ...
... crust is generated as the plates pull away from each other Convergent boundaries – where crust is destroyed as one plate dives under another Transform boundaries – where crust is neither produced nor destroyed as the plates slide horizontally past each other Plate boundary zones – broad belts in whi ...
Magma Supply Vs Magma Plumbing
... 2. Transform faults and fracture zones (adjacent transform faults are parallel). 3. Continuous plate boundaries 4. Volcanic Island chains - plates moving over fixed mantle plume (melt source) 5. Topography variations consistent with aging plates. ...
... 2. Transform faults and fracture zones (adjacent transform faults are parallel). 3. Continuous plate boundaries 4. Volcanic Island chains - plates moving over fixed mantle plume (melt source) 5. Topography variations consistent with aging plates. ...
STUDY SHEET FOR PLATE TECTONICS CONTINENTAL DRIFT 1
... COOLED MATERIAL BECOMES MORE DENSE. 6. Where does the material in a convection current go when it is cooled? COOLED MATERIAL SINKS. PLATE BOUNDARIES Draw arrows to explain how plates move at each of the four following boundaries: 1. DIVERGENT: 2. TRANSFORM: 3. COLLISION: 4. SUBDUCTION: 5. What plate ...
... COOLED MATERIAL BECOMES MORE DENSE. 6. Where does the material in a convection current go when it is cooled? COOLED MATERIAL SINKS. PLATE BOUNDARIES Draw arrows to explain how plates move at each of the four following boundaries: 1. DIVERGENT: 2. TRANSFORM: 3. COLLISION: 4. SUBDUCTION: 5. What plate ...
Crust - SharpSchool
... One plate of oceanic crust subducts (sinks) beneath another plate of oceanic crust Older plate is colder and denser, and sinks below younger plate Creates two features: ◦ Deep ocean trenches – deep canyons in ocean floor example: mariana trench ◦ Island arcs – chains of volcanic islands that form on ...
... One plate of oceanic crust subducts (sinks) beneath another plate of oceanic crust Older plate is colder and denser, and sinks below younger plate Creates two features: ◦ Deep ocean trenches – deep canyons in ocean floor example: mariana trench ◦ Island arcs – chains of volcanic islands that form on ...
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.