| The first is a simplified depiction of the geologic time scale. |
| Yes, it has a season that is best measured by the geologic time scale. |
| This concept of time-rock correlation is fundamental to this biblical geologic time scale and reflects the non-uniform effect of historical events on the geology of earth. |
| A standardized geologic time scale is the framework for deciphering and understanding the long and complex history of our planet Earth. |
| A geologic time scale combines absolute age determinations, in years, with relative age based on sequences of rock strata. |
| The geologic time scale, which defines geological periods, began to take its modern form only in the 19th century. |