an event thought to have occurred approximately 4.1 to 3.8 billion years
ago. at a time corresponding to the Neohadean and Eoarchean eras on
Earth.
Geological Time Scale
The geologic time scale (GTS) is a system of chronological dating that relates
geological strata (stratigraphy) to time. It is used by geologists, paleontologists,
and other Earth scientists to describe the timing and relationships of events that
have occurred during Earth's history
Layers of the Earth
The Four Layers. ]The Crust. The Mantle. Convection Currents. Outer Core. Inner Core.
Stratigraphy
the analysis of the order and position of layers of archaeological remains.
Fossil Record
Fossil record, history of life as documented by fossils, the remains or imprints of the organisms from earlier geological
periods preserved in sedimentary rock.
Relative Dating
elative dating is the science of determining the relative order of past events
Absolute Dating
Absolute dating is the process of determining an age on a specified chronology in archaeology and
geology