lecture based

• label

  A) zero adjustment knob

  B) base

  C) counter masses

  D) beams

  E) notch

  F) pointer

  G) zero

  H) pan

  I) zero adjustment knob

  
• plate boundary


  The location where two plates meet is called
• Plate boundaries are

  where geological events occur, such as

  earthquakes

  creation of topographic features

  • mountains
  • volcanoes
  • mid-ocean ridges
  • ocean trenches
• convergent boundary is also called

  destructive
• divergent boundary is also called


  constructive
• transform boundary is also called

  strike-slip fault
• divergent boundary


  moves apart
• force of separation in divergent

  tension zone
• divergent occurs at


  mid-ocean ridges (seafloor spreading) - Oceanic Plates

  continental margins (rift valley) Continental Plates
• piled up mantle


  oceanic ridges
• new mantle material pushes old material

  seafloor spreading
• convergent boundary


  collides
• in convergent boundaries: 


  Oceanic - Continental

  • volcanoes
  • oceanic plates sink because it is denser than continental plate
  • subduction zone

  Oceanic - Oceanic

  • ocean trench
  • older oceanic plate sinks
  • subduction zone

  Continental - Continental

  • mountain ranges
  • no sinking
  • no subduction
• continental-oceanic creates

  trenches - crack between crust underwater

  fault - crack between crust on land

  volcano
• subduction is


  plate diving/sinking under less dense plate. subducting plate melts at the mantle
• hot molten material


  magma
• column of rising magma

  mantle plume
• group of volcanoes


  volcanic island arc
• since magma has pressure due to heat


  it will push the ground above it, forming a volcanoe
• earthquake and tsunamis (harbor wave) occur at

  continental - oceanic (convergent)
• oceanic-oceaniccreates

  •Trench

  • Earthquakes and Tsunamis(Harbor Wave)

  • volcanic arc

  • volcano
• continental-continental creates


  fault (in collision zone)

  shallow earthquake

  mountain ranges
• collision zone


  where plates collide
• tension zone


  gap between two divergent plate boundaries
• transform boundary 


  slides past one another
• crack in transform boundary forms

  undersea canyon

  linear fault valley
• example of fault line

  San Andreas Fault
• types of tectonic plates by movement

  divergent

  convergent

  transform
• label

  layers of earth

  A) crust

  B) upper mantle

  C) lower mantle

  D) outer core (liquid)

  E) inner core (solid)

  
• label

  layers of earth (in-depth)

  A) crust (0-100km)

  B) lithosphere (crust and upper mantle)

  C) mantle

  D) core

  E) asthenosphere

  F) mantle

  G) crust

  H) outer core

  I) inner core

  J) 2900km

  K) 5100km

  L) 6378km

  M) liquid

  N) solid

  
• chemical composition of inner core and outer core

  iron (Fe) and nickel (Ni)
• phase of inner core and outer core

  inner - solid

  outer - liquid
• lithosphere is moving in


  constant slow motion
• movement of lithosphere


  tectonics
• lithosphere is divided into huge slabes called

  tectonic plates
• rigid and brittle outer layer

  lithosphere
• lithosphere floats in


  semi-plastic layers (asthenosphere)
• types of tectonic plate

  continental - less dense, not covered with water

  oceanic - denser, covered with water
• diff of continental and oceanic lithosphere

  continental

  • 30-40km
  • less dense rock
  • granite
  • 2.7g/cm³

  oceanic

  • 7-10km
  • denser rock
  • basalt
  • 3.0g/cm³
• classification of tectonic plates

  • major (primary) - greater than 10M km² (>10M km²)
  • minor (secondary) - less than 10M km², greater than 1M km² (1M km²<x<10M km²
  • micro - less than 1M km² (>1M km²)