Dynamics of the Earth
 
I. Evidence of Crustal Motions: <ul><li>A. ________________  wears down the earth’s crust.____________  _______________ cr...
B. Sedimentary  beds are deposited as _______________ __(_____  _) Horizontal Layers Strata
THIS SEDIMENTARY STRATA  SHOWS NO EVIDENCE OF UPLIFT OR CRUSTAL MOTION LAW OF ORIGINAL HORIZONTALITY
C. Evidence of motions within the Earth’s crust is indicated by: 1._____________ 2._____________ 3._____________ Tilting F...
TILTING
FOLDING
FAULTING: OFF SET LAYERS
FAULTING
 
D.  ______________ provide direct  evidence of crustal movement. Earthquakes
World Distribution
U.S . Distribution
_______  ______ and ________  _______  are 2 changes that can be observed after an earthquake. Fault  lines Uplifted  land...
EARTHQUAKE DAMAGE
 
 
E. ______  ________ are used in mapping surveys and indicate exact positions and elevations. Bench  marks
Changes in ________________ of benchmarks are evidence that the land is either   ___________  or____________ rising sinkin...
F.Displaced  marine  fossils  found in mountains have 2 interpretations: 1. _____________________________ ________________...
G. _____________ is the rising  of the crust _____________  is the sinking  of the crust Uplift Subsidence
II: EARTHQUAKES
<ul><li>1. The movement of ____________ inside </li></ul><ul><li>_______________ </li></ul><ul><li>2. _______________  is ...
<ul><li>B. ________ movement of the crust over long periods of time builds ___________ </li></ul><ul><li>within the rocks....
Increased pressure causes the _______  _______ to break creating a ________.  Rock  strata fault
When faulting occurs  energy radiates through  the earth as  _ _______  _ _______  that cause the ground to ______________...
III.Measuring the Earthquakes: <ul><li>A. There are  2 scales to measure earthquakes: </li></ul><ul><li>1. _______________...
<ul><li>B. _______________ scale is based upon the  observations of people  and damage caused. It </li></ul><ul><li>measur...
Mercalli Scale  – Intensity scale I II III IV V VI
<ul><li>C._______________ </li></ul><ul><li>uses the  seismograp h  to determine the ________________ </li></ul><ul><li>Ma...
<ul><li>Its numerical scale is ____ to ____.  </li></ul><ul><li>Each of the numerical steps represent ____ increase. </li>...
Richter Scale  – Magnitude scale
V. Parts of the Earthquake: <ul><li>A. The place underground where the break or fault occurs is the _______ of the quake. ...
 
<ul><li>The __________ is the location along the surface of the earth just above the focus where the earthquake is felt mo...
A. The 2 most important energy waves are: <ul><li>P-wave or  Primary </li></ul><ul><li>and </li></ul><ul><li>S-wave or  Se...
P-wave Primary Wave S-wave Secondary wave
B. Characteristics of Primary Waves (P) waves: <ul><li>_______________________ </li></ul><ul><li>_______________________ <...
C. Characteristics of Secondary Waves (S) waves: <ul><li>_______________________ </li></ul><ul><li>_______________________...
TYPES OF EARTHQUAKE WAVES
<ul><li>D. Both S and P  waves  travel faster through ___________ </li></ul><ul><li>material. </li></ul>denser
VI. Finding the Epicenter: <ul><li>A. The seismograph records the ________________ and </li></ul><ul><li>_________________...
Seismograph
 
SF = San Francisco 300 km LV = Las Vegas 390 km LA = Los Angeles 189 km Seismic Stations TRIANGULATION TO FIND THE EPICENT...
Skip Page 4 in your out line! Start with VIII: The Layers of the Earth
VIII. THE LAYERS OF THE EARTH: <ul><li>A. The crusts thickness______ </li></ul><ul><li>It is _________________  </li></ul>...
<ul><li>Continental crust is mostly_______________, ____________density & __________________ </li></ul><ul><li>The ocean b...
B. Inferred characteristics of Earth’s Interior: <ul><li>1. Studying the _____________ </li></ul><ul><li>of _____________ ...
S-waves can not pass through liquid
P-waves are bent as they pass through the different layers Based on the density of the layer
<ul><li>2. The _____________ of a seismic wave changes with the __________ of the material it travels through. </li></ul><...
<ul><li>We know that P-waves can be transmitted through </li></ul><ul><li>________  _______  & ______ </li></ul><ul><li>S-...
<ul><li>3. Earth Quake Shadow Zones: </li></ul><ul><li>When an earthquake occurs both </li></ul><ul><li>____________ are r...
S-waves can not pass through liquid
<ul><li>____________ occurs at the  ___________ (boundaries) </li></ul>refraction interfaces
 
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  • Earthquake Srevised Sci8

    1. 1. Dynamics of the Earth
    2. 3. I. Evidence of Crustal Motions: <ul><li>A. ________________ wears down the earth’s crust.____________ _______________ creates new mountains. </li></ul>Weathering & Erosion ( Uplift ) Plate tectonics
    3. 4. B. Sedimentary beds are deposited as _______________ __(_____ _) Horizontal Layers Strata
    4. 5. THIS SEDIMENTARY STRATA SHOWS NO EVIDENCE OF UPLIFT OR CRUSTAL MOTION LAW OF ORIGINAL HORIZONTALITY
    5. 6. C. Evidence of motions within the Earth’s crust is indicated by: 1._____________ 2._____________ 3._____________ Tilting Folding Faulting
    6. 7. TILTING
    7. 8. FOLDING
    8. 9. FAULTING: OFF SET LAYERS
    9. 10. FAULTING
    10. 12. D. ______________ provide direct evidence of crustal movement. Earthquakes
    11. 13. World Distribution
    12. 14. U.S . Distribution
    13. 15. _______ ______ and ________ _______ are 2 changes that can be observed after an earthquake. Fault lines Uplifted land (displaced strata)
    14. 16. EARTHQUAKE DAMAGE
    15. 19. E. ______ ________ are used in mapping surveys and indicate exact positions and elevations. Bench marks
    16. 20. Changes in ________________ of benchmarks are evidence that the land is either ___________ or____________ rising sinking elevation
    17. 21. F.Displaced marine fossils found in mountains have 2 interpretations: 1. _____________________________ _______________________________ 2. _____________________________ ________________________________ Higher sea levels covered mountains Rocks were uplifted from a previous ocean bottom
    18. 22. G. _____________ is the rising of the crust _____________ is the sinking of the crust Uplift Subsidence
    19. 23. II: EARTHQUAKES
    20. 24. <ul><li>1. The movement of ____________ inside </li></ul><ul><li>_______________ </li></ul><ul><li>2. _______________ is the movement of rock along a surface where the rocks are broken. </li></ul>A. 2 processes that cause earthquakes: magma volcanoes faulting
    21. 25. <ul><li>B. ________ movement of the crust over long periods of time builds ___________ </li></ul><ul><li>within the rocks. </li></ul>Slow stress
    22. 26. Increased pressure causes the _______ _______ to break creating a ________. Rock strata fault
    23. 27. When faulting occurs energy radiates through the earth as _ _______ _ _______ that cause the ground to _______________ Seismic waves vibrate
    24. 28. III.Measuring the Earthquakes: <ul><li>A. There are 2 scales to measure earthquakes: </li></ul><ul><li>1. ________________ </li></ul><ul><li>2. ________________ </li></ul>Mercalli Richter
    25. 29. <ul><li>B. _______________ scale is based upon the observations of people and damage caused. It </li></ul><ul><li>measures ___________ </li></ul><ul><li>of the earthquake from </li></ul><ul><li>____ to ____ </li></ul>Mercalli intensity 1 12
    26. 30. Mercalli Scale – Intensity scale I II III IV V VI
    27. 31. <ul><li>C._______________ </li></ul><ul><li>uses the seismograp h to determine the ________________ </li></ul><ul><li>Magnitude is the total </li></ul><ul><li>______ released by the earthquake. </li></ul>Richter Scale magnitude energy
    28. 32. <ul><li>Its numerical scale is ____ to ____. </li></ul><ul><li>Each of the numerical steps represent ____ increase. </li></ul>1 10 31X
    29. 33. Richter Scale – Magnitude scale
    30. 34. V. Parts of the Earthquake: <ul><li>A. The place underground where the break or fault occurs is the _______ of the quake. </li></ul>focus
    31. 36. <ul><li>The __________ is the location along the surface of the earth just above the focus where the earthquake is felt most strongly. </li></ul>epicenter
    32. 37. A. The 2 most important energy waves are: <ul><li>P-wave or Primary </li></ul><ul><li>and </li></ul><ul><li>S-wave or Secondary </li></ul>
    33. 38. P-wave Primary Wave S-wave Secondary wave
    34. 39. B. Characteristics of Primary Waves (P) waves: <ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul>Faster than S waves Recorded first travels through both solids and fluids
    35. 40. C. Characteristics of Secondary Waves (S) waves: <ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul><ul><li>_______________________ </li></ul>Slower than P waves Recorded after P-wave Can not travel through fluids
    36. 41. TYPES OF EARTHQUAKE WAVES
    37. 42. <ul><li>D. Both S and P waves travel faster through ___________ </li></ul><ul><li>material. </li></ul>denser
    38. 43. VI. Finding the Epicenter: <ul><li>A. The seismograph records the ________________ and </li></ul><ul><li>________________________________________ </li></ul>magnitude Records arrival time of seismic waves Use reference table page 11
    39. 44. Seismograph
    40. 46. SF = San Francisco 300 km LV = Las Vegas 390 km LA = Los Angeles 189 km Seismic Stations TRIANGULATION TO FIND THE EPICENTER SF LV LA 300 km
    41. 47. Skip Page 4 in your out line! Start with VIII: The Layers of the Earth
    42. 48. VIII. THE LAYERS OF THE EARTH: <ul><li>A. The crusts thickness______ </li></ul><ul><li>It is _________________ </li></ul><ul><li>under the oceans and </li></ul><ul><li>_________ under continents. </li></ul>varies thinner thicker
    43. 49. <ul><li>Continental crust is mostly_______________, ____________density & __________________ </li></ul><ul><li>The ocean basins are mostly ________ and ______ or ___________ </li></ul>granitic dark dense basaltic low light
    44. 50. B. Inferred characteristics of Earth’s Interior: <ul><li>1. Studying the _____________ </li></ul><ul><li>of _____________ ________ allows us to make inferences about the structure and composition of the Earth’s interior. </li></ul>transmission Earth Quake Waves
    45. 51. S-waves can not pass through liquid
    46. 52. P-waves are bent as they pass through the different layers Based on the density of the layer
    47. 53. <ul><li>2. The _____________ of a seismic wave changes with the __________ of the material it travels through. </li></ul><ul><li>Waves are also ___________ (bent) as they travel through different densities </li></ul>velocity density refracted
    48. 54. <ul><li>We know that P-waves can be transmitted through </li></ul><ul><li>________ _______ & ______ </li></ul><ul><li>S-Waves can be transmitted through ONLY </li></ul><ul><li>________________ </li></ul>solid liquid gas solid
    49. 55. <ul><li>3. Earth Quake Shadow Zones: </li></ul><ul><li>When an earthquake occurs both </li></ul><ul><li>____________ are received from most of the earth. </li></ul><ul><li>Opposite sides of the earth where the epicenter is, receives </li></ul><ul><li>____ but NO _______ because S-waves can not penetrate the _______ outer core. </li></ul>S and P waves S P liquid
    50. 56. S-waves can not pass through liquid
    51. 57. <ul><li>____________ occurs at the ___________ (boundaries) </li></ul>refraction interfaces
    52. 59. L et’s Draw This Diagram in our Notebook :
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