The debate is not the first of this kind in geologic history.

These studies provided a deep geologic history for the region reaching back some 100,000 years.

The state's geologic history can be divided into three periods.

Either way, this break in the geologic history of the area spans about 165 million years.

The flood is believed to be the second largest in known geologic history.

However, the evidence becomes more sparse further back in geologic history.

No record exists for the next 1,200 million years of Jerome's geologic history.

At various times during geologic history, the bank has been an island - depending on sea level rise and fall.

This process has happened over and over in the geologic history of the Earth.

It is the quieter, normal events of our geologic history we don't yet understand.