The dynamics of the earth's outside

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The dynamics of the earth's outside

  1. 1. THE DYNAMICS OF EARTH’S OUTSIDE
  2. 2. GEOLOGICAL AGENTS <ul><li>THE PROCESSES CREATED: </li></ul><ul><li>- MOTION (MOVEMENT) </li></ul><ul><li>- TRANSPORT </li></ul><ul><li>- SEDIMENTATION </li></ul>
  3. 3. MOTION <ul><li>IT IS THE PROCESS OF CARRYING AWAY THE ORIGINAL MATERIALS </li></ul>
  4. 7. TRANSPORT <ul><li>THE MATERIALS TRANSPORTED BY GEOLOGICAL AGENTS ARE CALLED CLASTS . </li></ul>
  5. 8. According to the way of transporting Clasts HONDOAN ZEHARREKO GARRAIOA
  6. 13. SEDIMENTATION <ul><li>WHEN GEOLOGICAL AGENTS LOSE THEIR STRENGTH, THEY LEAVE THE MATERIALS ALREADY TRANSPORTED </li></ul>
  7. 19. THE CLASSIFICATION OF THE GEOLOGICAL AGENTS <ul><li>WIND </li></ul><ul><li>GLACIERS </li></ul><ul><li>ROUGH WATERS </li></ul><ul><li>RIVERS </li></ul><ul><li>SUBSOIL WATER </li></ul><ul><li>SEA </li></ul>
  8. 20. <ul><li>WIND: in places without plants. In deserts and beaches. </li></ul>
  9. 21. <ul><li>GLACIERS: in polar lands and in the tops of the mountains </li></ul>
  10. 22. <ul><li>ROUGH WATERS: </li></ul><ul><li>especially in floods </li></ul>
  11. 23. <ul><li>RIVERS: </li></ul><ul><li>permanent flow </li></ul>
  12. 24. <ul><li>SUBSOIL WATER: stones dissolve and caves are created </li></ul>
  13. 25. <ul><li>SEA: </li></ul><ul><li>it influences in the cost </li></ul>
  14. 26. WIND <ul><li>ITS MOTION POWER IS NOT STRONG </li></ul><ul><li>IT TRANSPORTS THE LITTLEST MATERIALS </li></ul><ul><li>THE SEDIMENTATION CREATED BY THE WIND IS CALLED DUNE. </li></ul><ul><li>IT CREATES SOME STRUCTURES CALLED LOESS </li></ul>
  15. 32. GLACIERS <ul><li>IN POLAR ZONES AND IN THE TOP OF THE MOUNTAINS </li></ul><ul><li>THE SNOW DOESN’T MELT DURING ALL THE YEAR </li></ul><ul><li>BECAUSE OF GRAVITY, SNOW LAYERS CAN MOVE </li></ul><ul><li>THERE ARE DIFFERENT KIND OF GLACIERS: ICECAPS AND GLACIERS OF THE ALPS </li></ul>
  16. 36. CIRQUE TONGUE
  17. 37. Abrupt relief
  18. 38. Glacier cirque: snow accumulates
  19. 39. The Glaciers’ tongue has the ability to erode and transport
  20. 41. We call moraine to the materials transported and deposited by the glacier
  21. 42. Moraines are stones of different seize and form.
  22. 43. The valleys of the glaciers have a U form
  23. 44. ROUGH WATERS <ul><li>In places with warm climate and little vegetation </li></ul><ul><li>When there’s strong rain, grooves are created in the land </li></ul><ul><li>Valleys and Gullies are created </li></ul><ul><li>Wakes get together and a new river is created. </li></ul>
  24. 49. Maitagarri tximina
  25. 51. RIVERS <ul><li>Rapids are permanent </li></ul><ul><li>Their valleys have V form </li></ul><ul><li>In the rivers there are three very different zones </li></ul>
  26. 53. RIVERS’ UPPER COURSE <ul><li>THERE ARE BIG SLOPES </li></ul><ul><li>VALLEYS ARE NARROW AND THEY HAVE V FORM </li></ul><ul><li>WATER GOES FAST; SO, IT ERODES SO MUCH. </li></ul><ul><li>ROCKS ARE BIG </li></ul><ul><li>RAPIDS, WATERFALLS,… </li></ul>
  27. 60. RIVERS’ MEDIUM COURSE <ul><li>SLOPES ARE NOT SO BIG; THAT IS WHY, WATER GOES SLOWERS. </li></ul><ul><li>THE VALLEY WIDENS: FLOODING PLAIN </li></ul><ul><li>THERE ARE MEANDERS </li></ul><ul><li>THE BIGGEST PROCESS IS THE TRANSPORT </li></ul><ul><li>ROCKS ARE MEDIUM SIZE AND THEY ARE ROUND </li></ul>
  28. 66. MOTION SEDIMENTS
  29. 72. RIVERS’ LOW COURSE <ul><li>MAIN PROCESS: SEDIMENTATION </li></ul><ul><li>WATER GOES SLOWLY </li></ul><ul><li>ESTUARIES AND DELTAS ARE CREATED </li></ul><ul><li>VALLEYS ARE ABSOLUTELY FLAT </li></ul><ul><li>SEDIMENTS: LITTLE SLIMES AND CLAYS </li></ul>
  30. 80. SUBSOIL WATER <ul><li>PART OF THE SURFACE WATER ENTERS THE GROUND. </li></ul><ul><li>THE CARBONE DIOXIDE (ACID) OF THE WATER DISSOLVES CALCITE </li></ul><ul><li>HOLES ARE CREATED IN THE SUBSOIL: CAVES </li></ul><ul><li>WHEN CAVES FALL, SINKHOLES (DOLINES) ARE CREATED </li></ul><ul><li>IN CAVES, WHEN WATER FALLS DROP BY DROP STALACTITES AND STALAGMITES ARE CREATED </li></ul>
  31. 93. SEA <ul><li>THE MOVEMENTS OF THE SEA MAKE THE RELIEFS’ SHAPE CHANGE: WAVES, RAPIDS AND TIDES </li></ul><ul><li>BETWEEN ALL THE SEA FACTORS, WAVES CREATE THE MAIN EROSION </li></ul><ul><li>SEA CLIFFS ARE CREATED </li></ul>
  32. 99. The erosion of the cliffs is not uniform. It depends on the type of the rocks.
  33. 104. <ul><li>The sea transport happens thanks to the waves and the currents </li></ul><ul><li>The sedimentation of the costs is not regular </li></ul><ul><li>The forms created: beaches, coastal bars, spits, tombolos… </li></ul>
  34. 111. Taking into account the direction of the currents marked in the photo of Getaria; which beach will have a thinner sand?

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