Geology is the study of the solid earth, its rocks and minerals. Geologists are the 'field hands' of earth science: without ground-based observation to confirm or expand on space-based tools, we would have an incomplete or even inaccurate picture of our planet. Geologists understand how the dynamic forces which shape our earth work, and use this knowledge to predict their affect on mankind.
Earthquakes, volcanoes and soil erosion affect all of us: even if the geological event occurs halfway around the world, we are all touched to a greater or lesser extent. Food grown in Nebraska depends on accurate soil sampling, land erosion monitoring and water drainage information all provided by earth scientists with a geological background. Fishermen who experience a 'drought' of fish look to geologists to explain silting, underwater seismic events or other phenomena in order to react appropriately.
More than just naming rocks and digging up fossilized bones, geologists tell us the story of the earth. That story goes back billions of years, and leaves its impression in the very ground we walk on. Source: NASA
Created by an act of Congress in 1879, the USGS has evolved over the ensuing 125 years, matching its talent and knowledge to the progress of science and technology. Today, the USGS stands as the sole science agency for the Department of the Interior. It is sought out by thousands of partners and customers for its natural science expertise and its vast earth and biological data holdings. The USGS is the science provider of choice in accessing the information and understanding to help resolve complex natural resource problems across the Nation and around the world. Source: U.S. Geological Survey