Red Hill from the Loop Trail, Painted Hills Unit, John Day Fossil Beds Nat'l Monument, Oregon

Notes on Geologic Time


Geologic time can be beyond human comprehension. Sure, geologists have broken it into units: periods, epochs and stages, but it is still mind-numbingly vast. And at the same time, just a bit facile. Let’s use the Oligocene Epoch as an example. On the one hand, in terns of the history of the planet, the period…