Explore Geology

Tour of Park Geology

Plate Tectonics


diagram of convergent plates
Diagram of convergent plates (USGS)

Divergent Plate Boundaries

  • Continential Rifts
    • Active
    • Ancient
  • Passive Continential Margins

Convergent Plate Boundaries

  • Ocean-Ocean Subduction Zones
  • Collisional Mountain Ranges
  • Ocean-Continent Subduction Zones
    • Active Volcanic Arc
    • Ancient Arc
    • Accretionary Wedge
    • Low-Angle Subduction
diagram of transform plate buondary
Diagram of relative motion of plates along the transform San Andreas fault

Transform Plate Boundaries

  • Continential
  • Oceanic
Hot Spots
  • Continential
  • Oceanic
Accreted Terrains

Divergent Plate Boundaries

Convergent Plate Boundaries



Transform Plate Boundaries

Hot Spots geyser in Yellowstone

Accreted Terrains

This page lists parks that have a common geologic theme. If you would like to contribute images or materials for park pages, please contact The National Park Service

Source: Robert J. Lillie

updated on 01/04/2005  I   http://www2.nature.nps.gov/geology/tour/platetec.cfm   I  Email: Webmaster
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