Structures

• Education
  • Dynamic Earth
  • Earth Evolution
    • Reconstruct Geological History
      • The present is the key to the past
      • Relative Age
      • Index Fossils
      • Absolute Age
    • Solar System Formation
      • Solar System Formation
      • Meteorites
      • Our Unique Earth
      • Habitable Earth
    • Archean
      • Origin of the Earth's Crust
      • Origin of the Continents
      • The Oldest Rock from China
      • The Earliest Atmosphere & Hydrosphere
      • The Earliest Life on Earth
    • Proterozoic
      • The Onset of Plate Tectonics
      • Extensive Carbonate Platforms
      • Stromatolites
      • Dawn of Multicellular Life
    • Early Paleozoic
      • Early Paleozoic Sea
      • Early Paleozoic Geosphere
      • Early Paleozoic Climate
      • Early Paleozoic Biosphere
    • Late Paleozoic
      • Late Paleozoic Geosphere
      • Oxygen of the Atmosphere
      • Life moves onto Land
      • Diversification of early seedless vascular plants
      • Diversification of early seed vascular plants
      • Diversification of Marine Life
    • Mesozoic
      • The Breakup of Supercontinent Pangea
      • The Age of Reptiles
      • Dinosaur World
    • Cenozoic
      • Shaping the Present
      • Continents in Collision
  • Earth Materials
    • Minerals
      • Minerals Properties
      • Minerals Color
      • Variation of Quartz
      • Mineral Pseudomorphs
      • Mineral Uses
    • Rocks
      • Out of Solution
      • Volcanic Products
      • Rock Cycle
  • Geological History of Hong Kong
    • Minerals
    • Rocks and Fossils
    • Structures