An introduction to plate tectonics continental drift, sea-floor spreading, and plate tectonics презентация
Содержание
- 2. Lecture 1. An Introduction to Plate Tectonics Continental Drift, Sea-Floor Spreading, and Plate Tectonics Since the
- 3. Lecture 1. An Introduction to Plate Tectonics Alfred Wegener, a German meteorologist, proposed the continental drift
- 4. Lecture 1. An Introduction to Plate Tectonics Continental Drift, Sea-Floor Spreading, and Plate Tectonics How the
- 5. Lecture 1. An Introduction to Plate Tectonics Continental Drift, Sea-Floor Spreading, and Plate Tectonics Wegener proposed
- 6. Lecture 1. An Introduction to Plate Tectonics Continental Drift, Sea-Floor Spreading, and Plate Tectonics Alfred Wegener
- 7. C: Lehmann–Bullen discontinuity – the inner-outer core bound. Lecture 1. An Introduction to Plate Tectonics Structure
- 8. Lecture 1. An Introduction to Plate Tectonics Structure of the Earth
- 9. Lecture 1. An Introduction to Plate Tectonics Two types of the Earth Crust Sedimentary layer 10
- 10. Lecture 1. An Introduction to Plate Tectonics Two types of the Earth Crust Oceanic crust Sediments
- 11. Lecture 1. An Introduction to Plate Tectonics Recently formed pillow lava (basalt), off Hawaii Oceanic crust
- 12. Lecture 1. An Introduction to Plate Tectonics Oceanic crust A dolerite is the medium-grained equivalent of
- 13. Lecture 1. An Introduction to Plate Tectonics Oceanic crust Gabbro from ocean crust. The gabbro is
- 14. Lecture 1. An Introduction to Plate Tectonics Oceanic crust Serpentinized peridotite Peridotite is classified as an
- 15. Lithosphere & Astenosphere 1300°С Lecture 1. An Introduction to Plate Tectonics Earth's lithosphere = the crust
- 16. Lithosphere & Astenosphere Lecture 1. An Introduction to Plate Tectonics Astenosphere is the highly viscous, mechanically
- 17. Convection of Mantle The asthenosphere is ductile and can be pushed and deformed like silly putty
- 18. Convection of Mantle Lecture 1. An Introduction to Plate Tectonics Ridge push happens at spreading centers
- 19. Plate Motion - Movements deep within the Earth → - carry heat from the hot interior
- 20. Plate Motion There are many evidence that supports the theory of plate tectonics: сontinental drift, earthquakes,
- 21. Divergent & Convergent boundaries Lecture 1. An Introduction to Plate Tectonics
- 22. Divergent Plate boundaries. 1. Continent – Continent Rifting (Diverging) Lecture 1. An Introduction to Plate Tectonics
- 23. Divergent Plate boundaries. 2. Ocean – Ocean Divergence (Rifting). Lecture 1. An Introduction to Plate Tectonics
- 24. Convergent Plate boundaries. 1 stage. Conversion of oceanic crust to continental crust. Lecture 1. An Introduction
- 25. Convergent Plate boundaries. 2 stage. Converging Plate Boundary - Continent to Ocean Lecture 1. An Introduction
- 26. Convergent Plate boundaries. 3 stage. Converging - Continent to Continent Lecture 1. An Introduction to Plate
- 27. Lecture 1. An Introduction to Plate Tectonics HEAT FLOW The average continental heat flow is about
- 28. Plates of the Earth Lecture 1. An Introduction to Plate Tectonics
- 29. Plates of the Earth: What Is A Plate? Lecture 1. An Introduction to Plate Tectonics Plates
- 30. Lecture 1. An Introduction to Plate Tectonics Plates of the Earth Primary plates These seven plates
- 31. Plates of the Earth Lecture 1. An Introduction to Plate Tectonics Secondary plates Arabian Plate; Caribbean
- 32. Rate of Plate Movement San Andreas Fault - 5.5 cm/yr Mid-Atlantic Ridge Iceland - 1.8 cm/yr;
- 33. Tectonic Rate Map Lecture 1. An Introduction to Plate Tectonics
- 34. Hot Spots A volcano hotspot is a region on the Earth’s surface that has experienced volcanism
- 35. Hot Spots Lecture 1. An Introduction to Plate Tectonics Much remains unknown about the nature of
- 36. Hot Spots Lecture 1. An Introduction to Plate Tectonics
- 37. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics The "geomagnetic" field is generated by motions
- 38. Lecture 1. An Introduction to Plate Tectonics Magnetic Anomalies The Earth's magnetic filed provides some valuable
- 39. Magnetic Anomalies Magnetic reversal time scale over the past 70 million years. Black intervals had normal
- 40. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics
- 41. Magnetic Anomalies Normal (+) and reversed (-) magnetization of the seafloor about the mid-ocean ridge. Note
- 42. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics The youngest regions are shown in red
- 43. Lecture 1. An Introduction to Plate Tectonics Increasing the thickness of lithosphere with time.
- 44. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics
- 45. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics
- 46. Magnetic Anomalies Lecture 1. An Introduction to Plate Tectonics
- 47. Cycles of Plate Tectonics Lecture 1. An Introduction to Plate Tectonics Wilson Cycle: Rifting of continents
- 48. Cycles of Plate Tectonics Numerous cycles of breakup and collision have preceded Wegener's Pangea Late Precambrian
- 49. Cycles of Plate Tectonics Lecture 1. An Introduction to Plate Tectonics GONDWANA, ancient supercontinent that incorporated
- 50. Lecture 1. An Introduction to Plate Tectonics UNDEFORMED MARINE SEDIMENTS Horizontal layering Conformably of layering Permanent
- 51. DEFORMATION Deformation- Modification of Rocks by Folding and Fracturing Lecture 1. An Introduction to Plate Tectonics
- 52. FAULTS Lecture 1. An Introduction to Plate Tectonics
- 53. CONTINENTAL SLOPE Lecture 1. An Introduction to Plate Tectonics A passive margin is the transition between
- 54. CONTINENTAL SLOPE Passive margin Lecture 1. An Introduction to Plate Tectonics
- 55. CONTINENTAL SLOPE Passive margin Lecture 1. An Introduction to Plate Tectonics
- 56. CONTINENTAL SLOPE Active margin Lecture 1. An Introduction to Plate Tectonics Active continental margins, i.e., when
- 57. The END
- 58. Lecture 1. An Introduction to Plate Tectonics Myths on Plate Tectonics Myth 1: Plates Are Rigid
- 59. Myth 2: Spreading Ridges Push The thought (and footage) of red-hot lava rising at the deep
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