Geological History

Geological History

1. Bondbardment

   • An event ( bondbardment ) that occured about 3.8 to 4.1 billion years ago

2. geological time scale

   • The geologic time scale is a system of chronological dating that relates geological strata to time.

3. stratigraphy

   • Stratigraphy is a branch of geology concerned with the study of rock layers and layering.
   • fossil record
     • Fossil Record is a biannual peer-reviewed scientific journal covering palaeontology.

4. Relative dating

   • Relative dating is the science of determining the relative order of past events, without necessarily determining their absolute age.
     • Absolute dating
       • Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.

5. layers of the earth

   • The internal structure of the Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.

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