Geology Revision

Geology Revision

1. Revision

   • Plate Tectonics
     • Constructive
       • "Plates move away from each other."
     • Conservative
       • "Plates move past each other."
     • Destructive
       • Oceanic-Oceanic
         • "Cooler, denser plate subducts under opposite when they meet."
       • Oceanic-Continental
         • "Denser oceanic lithosphere forced under buoyant continental lithosphere."
       • Continental-Continental
         • "Neither plate can subduct, both low density, they both collide."
     • "Mantle heated below. In hotter areas, rises upwards. Cooler areas, opposite."
       • Convection Current
   • Theory of Continental Drift
     • Fossils of Land Animals
       • E.g. "Couldn't swim to other places because of the mass of water."
     • The countries fit together like a jigsaw.
   • Continents
     • "Carried slowly about Earth's surface because plates beneath are moving."
   • Folding
     • Strike
       • "Direction of line formed by intersection of a fault."
     • Apparent Dip
       • "Drift of geologic beds. Seen from any *vertical cross-section* that's not horizonital to the strike of geologic beds."
     • True Dip
       • "When * is perpendicular to strike of beds."