Earth

• Where plate hits continent
  • plate submerges and disappears
  • mountains pushed up
    • Rockies, Andes, Himalayas
  • volcanic activity
    • “ring of fire” surrounding Pacific Ocean
  • Earthquakes generated
    • California, Japan
  • Isolated “hot spot” volcanoes (Hawaii)
    • weak spot in crust/plate
    • plate motion leads to island chain Z 58
  • Continental Drift TA 54
    • amateur Wegner (1920’s) saw how nicely E. Coast of S.America fit into W. Coast of Africa -- like a jig-saw puzzle
      • Found similar rocks on the 2 coasts
      • proposed Continental Drift as the reason

Previous slide

Next slide

Back to first slide

View graphic version