Epoch, in geology, a subdivision of geologic time. Geologists divide the earth's history into eras, which are subdivided into periods. Each period, in turn, is subdivided into epochs.
Epoch (Geology)
Cite This!
Please copy/paste the following text to properly cite this HowStuffWorks article:
"Epoch (Geology)" 15 September 2009. HowStuffWorks.com. <http://science.howstuffworks.com/environmental/earth/geology/epoch-earth-info.htm> 10 February 2012.
Cite
You Might Also Like
How are fossil replicas made?
Sometimes dinosaur fossils are too large and heavy to display without damaging them. How are those enormous models built? And what makes them look so realistic?
What can archaeology teach us about humanity?
We've been scribbling our thoughts down on stone and paper for a while now. But the job of assembling a history for all of humanity gets a lot harder once those written records disappear. Luckily, archaeologists are happy to tackle the job.
