Plate Tectonics
... There are following evidences for his theory: (i) Same Fossils (ii) Landforms (iii)Shapes like Jigsaw Puzzle ...
... There are following evidences for his theory: (i) Same Fossils (ii) Landforms (iii)Shapes like Jigsaw Puzzle ...
Plate Tectonics - Aspen View Academy
... Now that you understand how the mantle moves, predict how movement of the mantle could affect what happens on the surface of the earth? Give 3 explanations of events that could occur as a result of this ...
... Now that you understand how the mantle moves, predict how movement of the mantle could affect what happens on the surface of the earth? Give 3 explanations of events that could occur as a result of this ...
Grade 6 Chapter 1 Study Guide
... Know that oceanic crust along the mid-ocean ridge is eventually destroyed at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and tha ...
... Know that oceanic crust along the mid-ocean ridge is eventually destroyed at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and tha ...
Landforms
... • Three types of movement at plate boundaries – Divergent, Convergent, Transform • Divergent (Spreading): crust stretches until it breaks; creating rift valleys and oceanic ridges • Convergent (Collide): Found on ocean floors and continental edges; On ocean floors colliding creates trenches. On cont ...
... • Three types of movement at plate boundaries – Divergent, Convergent, Transform • Divergent (Spreading): crust stretches until it breaks; creating rift valleys and oceanic ridges • Convergent (Collide): Found on ocean floors and continental edges; On ocean floors colliding creates trenches. On cont ...
Study Guide - SUSDIntelEssentialsSection2Downs
... 14. continental drift 15. plate tectonics 16. focus 17. epicenter 18. primary waves 19. secondary waves 20. seismograph 21. transform boundary 22. divergent boundary 23. convergent boundary 24. subduction 25. hot spots 26. convection 27. oceanic-continental subduction 28. continental-continental col ...
... 14. continental drift 15. plate tectonics 16. focus 17. epicenter 18. primary waves 19. secondary waves 20. seismograph 21. transform boundary 22. divergent boundary 23. convergent boundary 24. subduction 25. hot spots 26. convection 27. oceanic-continental subduction 28. continental-continental col ...
Document
... Iceland lies at the intersection of Mid-Atlantic Ridge but also sits on a mantle plume which makes the volcanic material different from the usual basaltic rocks of the mid-oceanic ridges. 30 million years ago ...
... Iceland lies at the intersection of Mid-Atlantic Ridge but also sits on a mantle plume which makes the volcanic material different from the usual basaltic rocks of the mid-oceanic ridges. 30 million years ago ...
Chapter 4 Babbey
... • 3. Glue them into your notebook as they were in Pangaea. See page 146 to help guide you. • When you are finished, answer questions 1-3 on page 148. Write the question & the answer. ...
... • 3. Glue them into your notebook as they were in Pangaea. See page 146 to help guide you. • When you are finished, answer questions 1-3 on page 148. Write the question & the answer. ...
What is Plate Tectonics?
... A continental plate colliding with another continental plate When this happens, collision zones appear. This is where land folds and faulted mountains form __________________________ - Boundary between two plates that are sliding past each other ________________________ happen along faults ...
... A continental plate colliding with another continental plate When this happens, collision zones appear. This is where land folds and faulted mountains form __________________________ - Boundary between two plates that are sliding past each other ________________________ happen along faults ...
plate tectonics
... • Convection currents rise in the asthenosphere and spread out beneath the lithosphere. Causes plates to move. If one plate moves, it makes another move. • As plates move, they collide, pull apart, or grind past each other…..producing Mountains, volcanoes, and Deep Sea Trenches. ...
... • Convection currents rise in the asthenosphere and spread out beneath the lithosphere. Causes plates to move. If one plate moves, it makes another move. • As plates move, they collide, pull apart, or grind past each other…..producing Mountains, volcanoes, and Deep Sea Trenches. ...
QUIZ
... Briefly explain how the steps of the scientific method were applied in the continental drift hypothesis and later to develop plate tectonics. Why is plate tectonics considered the unifying theory of geology? List 3 geological observations or events that are best explained by the theory of plate tect ...
... Briefly explain how the steps of the scientific method were applied in the continental drift hypothesis and later to develop plate tectonics. Why is plate tectonics considered the unifying theory of geology? List 3 geological observations or events that are best explained by the theory of plate tect ...
Marks`s powerpoint presentation (as a pdf), 0
... nickel and remains very hot, even after 4.5 billion years of cooling. • The core is divided into two layers: a solid inner core and a liquid outer core. ...
... nickel and remains very hot, even after 4.5 billion years of cooling. • The core is divided into two layers: a solid inner core and a liquid outer core. ...
Commotion Beneath the Ocean
... the lithosphere • The lithosphere floats on the Asthenosphere • Asthenosphere is undergoing convection • Plates are moving and interact with other plates ...
... the lithosphere • The lithosphere floats on the Asthenosphere • Asthenosphere is undergoing convection • Plates are moving and interact with other plates ...
Earth`s Structure
... • Split into two continents – Laurasia and Gondwana (thousands of years ago). • Split into today's continents. • Continents sometimes collided, forming mountain ranges and volcanoes. ...
... • Split into two continents – Laurasia and Gondwana (thousands of years ago). • Split into today's continents. • Continents sometimes collided, forming mountain ranges and volcanoes. ...
Document
... • Movement along faults results in earthquake activity • Example: mid-ocean ridges volcanic activity produces new seafloor as plates drift apart -- seafloor spreading • Examples: E. African Rift, mid-Atlantic ridge ...
... • Movement along faults results in earthquake activity • Example: mid-ocean ridges volcanic activity produces new seafloor as plates drift apart -- seafloor spreading • Examples: E. African Rift, mid-Atlantic ridge ...
Plate Tectonics - Paul J. Goodenough
... o Combined theory of Continental Drift & Seafloor Spreading. o Earth’s crust & upper mantle (lithosphere) are broken into plates and move around on a plastic-like layer of the mantle (asthenosphere.) o Seven Major Plates: Pacific (largest), Atlantic, African, North American, South American, Eurasian ...
... o Combined theory of Continental Drift & Seafloor Spreading. o Earth’s crust & upper mantle (lithosphere) are broken into plates and move around on a plastic-like layer of the mantle (asthenosphere.) o Seven Major Plates: Pacific (largest), Atlantic, African, North American, South American, Eurasian ...
Study Guide ANSWERS
... 19. Describe sea-floor spreading and the landforms that are created. Sea-floor spreading occurs at mid-ocean ridges where new oceanic crust is created through volcanic activity. Sea-floor spreading creates new oceanic crust and rift valleys. ...
... 19. Describe sea-floor spreading and the landforms that are created. Sea-floor spreading occurs at mid-ocean ridges where new oceanic crust is created through volcanic activity. Sea-floor spreading creates new oceanic crust and rift valleys. ...
chapter 15B - plate tectonics 2
... • Originate at great depth, perhaps at the mantle-core boundary • Since plate moves, but plume does not, it allows us to measure rate of plate motion. ...
... • Originate at great depth, perhaps at the mantle-core boundary • Since plate moves, but plume does not, it allows us to measure rate of plate motion. ...
Vocab-Chapter 7 - Wachter Middle School
... ____________________________ 1. A fault in which the two fault blocks move past each other horizontally. ____________________________ 2. A piece of the lithosphere that moves around on top of the asthenosphere. ____________________________ 3. The theory that the Earth’s lithosphere is divided into t ...
... ____________________________ 1. A fault in which the two fault blocks move past each other horizontally. ____________________________ 2. A piece of the lithosphere that moves around on top of the asthenosphere. ____________________________ 3. The theory that the Earth’s lithosphere is divided into t ...
The Plate Tectonics Theory
... ____________________ are in constant, slow motion, driven by ___________________________________ in the mantle. The lithosphere is broken into large, continent sized sections called __________________________. There are about 30 tectonic plates on the Earth’s surface The plates of the lithosphere fl ...
... ____________________ are in constant, slow motion, driven by ___________________________________ in the mantle. The lithosphere is broken into large, continent sized sections called __________________________. There are about 30 tectonic plates on the Earth’s surface The plates of the lithosphere fl ...
Document
... Plates consist of crust and lithospheric mantle Any individual plate contains oceanic and/or continental crust Each plate relatively rigid, little internal deformation Plate boundaries defined by active seismic and volcanic activity Dynamic: new ones form, boundaries change character, etc. ...
... Plates consist of crust and lithospheric mantle Any individual plate contains oceanic and/or continental crust Each plate relatively rigid, little internal deformation Plate boundaries defined by active seismic and volcanic activity Dynamic: new ones form, boundaries change character, etc. ...
Guided Reading on Sections 23.3 and 23.4
... landmasses, particularly around the edges of the Pacific (Figure 23.12). 13. So, some of the deepest parts of the ocean are actually near some of the ________________, and out in the middle of the oceans the water is relatively ________________ because of the underwater mountains. 14. With this new ...
... landmasses, particularly around the edges of the Pacific (Figure 23.12). 13. So, some of the deepest parts of the ocean are actually near some of the ________________, and out in the middle of the oceans the water is relatively ________________ because of the underwater mountains. 14. With this new ...
Landforms - Rankin County School District / Homepage
... • Three types of movement at plate boundaries – Spread, Collide, Move Laterally • Spreading: crust stretches until it breaks; creating rift valleys and oceanic ridges • Collide: Found on ocean floors and continental edges; On ocean floors colliding creates trenches. On continental boundaries, collid ...
... • Three types of movement at plate boundaries – Spread, Collide, Move Laterally • Spreading: crust stretches until it breaks; creating rift valleys and oceanic ridges • Collide: Found on ocean floors and continental edges; On ocean floors colliding creates trenches. On continental boundaries, collid ...
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.