plate tectonics

Plate Tectonics and Hot Spots

crustal plates-AustraliaThe study of seismic(earthquake waves)
are used to identify divisions
within the interior of the Earth into:
inner core,
outer core,
"D",
lower mantle,
transition region,
upper mantle,
and crust ( continental and oceanic  ).
new oceanic crust
Three ways that plate margins can move relative to one another.
i) Moving away from one another
ii) Moving towards each other
iii) Sliding past each other

Seventeen excellent plate tectonics images from the U.S.G.S. (on-site)

  Earth Science Links...
 Major Plates
 Plate overview
  Earth x-sect
 Plate boundary types/locations
  Ocean/continent converge
  Ocean/ocean converge
Continent/continent converge 
 Himalayas1
 Himalayas2
  Continent/continent diverge
Mid-ocean diverge 
  Magnetic reversal-
ocean rift
 Magnetic reversal -
age of oceans
Fossil evidence of drift
Plates slide past 
Pacific Basin in 3D
Hot spot -Hawaii