Earthquake Glossary - Quaternary
Quaternary
The Quaternary is the geologic time period comprising about the last 1.65 million years.
The Quaternary is the geologic time period comprising about the last 1.65 million years.
U.S. Department of the Interior | U.S. Geological Survey
Page URL: http://earthquake.usgs.gov/learn/glossary/?term=Quaternary
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