US Geological Survey
Usgs: Trends in Ground Water Use, 1950 2005
This site from USGS describes the importance of ground-water, provides a map of ground-water use (by state), a map of the percent of total withdrawals coming from ground water, and a map of the percent of public-supplied population...
US Geological Survey
Usgs: Manganese
A detailed listing of available government reports on magnesium ores and minerals. Lots of information is accessible through thee links.
US Geological Survey
Usgs: Aluminum Statistics and Information
This site provides a brief overview of aluminum, as well as reports and publications dating back to 1995 concerning the usage of aluminium in the mineral industry.
US Geological Survey
Usgs: Perlite Statistics and Information
The USGS presents Perlite statistics and information. Includes annual publications, contacts, and resources.
US Geological Survey
Usgs: Erosion of a Sea Stack Over 100 Years
This series of photos dramatically illustrates the process of mechanical weathering known as rock abrasion. Taken over a 100 year span, you can see the effects of rock abrasion on Jump-off Joe, a sea stack at Nye Beach in Oregon. The...
US Geological Survey
Usgs: How Much Water Is There on (And In) the Earth?
The USGS gives an overview of the amount of water on Earth and where it is located. It gives a few interesting facts about the Earth's supply of water. Click Home to access the site in Spanish.
US Geological Survey
Usgs: A National Look at Nitrate Contamination of Ground Water
This site features a map of the United States which indicates areas with the highest risk of nitrate contamination in ground water. Links to a description of ground water contamination in U.S.
US Geological Survey
Usgs: Water Science School:water Quality
Learn about the importance of water quality and environmental influences that reduce it.
US Geological Survey
Usgs: Dinosaurs: Fact and Fiction
A comprehensive series of pages that answers a number of commonly asked questions about dinosaurs.
US Geological Survey
Usgs: Effects of Human Activities
This site reviews the effects of agricultural development, urban and industrial development, drainage of the land surface, modifications to river valleys, and modifications to the atmosphere have on ground water and surface water.
US Geological Survey
Usgs: Determining the Depth of an Earthquake
Provides insight on how scientists determine the depth of an earthquake. Offers links to locating earthquakes as well as earthquake facts and lists.
US Geological Survey
Usgs: Historical Perspective
A graphic map of Lauraisia is provided at this site on continental drift and the history of the Earth. You can also search text to find reference to Laurasia.
US Geological Survey
Usgs: Materials Flow and Sustainability [Pdf]
This site is a fact sheet that uses illustrations to review the steps minerals go through to be made into useable products, and also how some materials can be recycled and returned to the environment.
US Geological Survey
USGS: Urbanization and Water Quality
This website focuses on water quality issues in relation to urbanization. There are helpful links to brief articles on topics like storm runoff, wastewater, and the underground water table. Click "Water Science School HOME" to access the...
US Geological Survey
Cvo: Craters of the Moon, Idaho
Site enables users to learn more about the volcanoes of North America. Offers links to visit a volcano as well as other items of interest.
US Geological Survey
Usgs: Major Tectonic Plates of the Earth
A map of major tectonic plates of the Earth showing where the Eurasian and Indo-Australian plates are located.
US Geological Survey
Usgs: Volcano Watch
Read what the scientists at the Hawaiian Volcano Observatory have recently observed about the state of Hawaii's volcanoes in the the weekly "Volcano Watch" newsletter. Issues of the newsletter from 1994 forward are archived on this site.
US Geological Survey
Usgs: Desert Ecosystems
What elements are present in a desert ecosystem? What impact might humans have upon it? Learn more about the processes that affect desert ecosystems by visiting this site. Contains only one large illustration.
US Geological Survey
Usgs: Earth Surface Dynamics (Research Activities)
This site from USGS provides several activities to help understand the interrelationships among earth surface processes, ecological systems, and human activities. Also included are links to new findings and programs concerning Earth...
US Geological Survey
Usgs: Mid Oceanic Ridge
This site from USGS provides a map of the mid-oceanic ridge in the sea floor of oceans.