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Carbonatite Lava
Carbonatite lava flows at Oldoinyo Lengai
Carbonatite Lava Flows at Oldoinyo Lengai: These carbon dioxide-rich lavas are some of the most fluid in the world. They flow like motor oil.
Earth Science Week

Most Popular
Rock Photo Galleries Rock Photos: Galleries of  igneous, sedimentary and metamorphic rock photos. They work well with computer projection.
What is geology? What Does a Geologist Do?
Learn about the interesting work of geologists in two short videos about the relevance of geology today.
Earth Science What is Earth Science? It is the study of Earth and its neighbors in space. It includes geology, astronomy, meteorology & oceanography.
Maps of over 250 states, countries and provinces   Reference Maps:
  Country Maps
  United States Maps
  Canada Maps
  Satellite Images
  US City Satellite Images
rock tumblers and tumbling instructions Rock Tumblers: Step-by-step guide to tumble-polishing rocks into gemstones. And an article: How to select a tumbler.
meteorites Meteorites: Learn about meteorites from meteorite hunter, Geoffrey Notkin. What are meteorites? irons, stones, stony-irons.
sliding rocks of racetrack playa Sliding Rocks of Racetrack Playa: How these rocks slide across a dry lake bed is a mystery. Learn what is thought to move them. © iStock / S. Hoerold
google map of the San Andreas Fault Google Map - San Andreas Fault: Zoom in to see the approximate location of the San Andreas.
Google map of asteroid impacts. Asteroid Impact Craters! Zoom in on 50 of Earth's largest impact craters with Google Maps.
Diamond Diamond: Articles, news, videos, production data, graphs, and information related to gem and industrial diamond worldwide.
marcellus shale gas Marcellus Shale: The most overlooked resource in the eastern United States!
novarupta the most powerful volcano of the 20th century The Most Powerful Volcanic Eruption of the 20th Century: Many people have never heard of this Alaskan volcano.
Roadside Geology Roadside Geology Guides:
Learn about the geology of your favorite state as seen along the highway. Filled with maps, photos, park locations and detailed descriptions. Get one before your next trip.
blood diamonds What are Blood Diamonds?
Have you seen the movie? Learn what "blood diamond" means.
herkimer diamonds Herkimer Diamonds: Learn how to find these doubly terminated quartz crystals at Herkimer, NY.
sea level rise map Sea Level Rise Map: A Google map that shows what will flood when sea level rises.
Mineral Rights Mineral Rights / Oil & Gas: Who owns the minerals under your land? Have they been sold? Can someone mine without permission?
What is a geyser? What is a Geyser? Photos and information about geysers from around the world.
tsunami diagram What Causes a Tsunami?
Learn how plate motions trigger earthquakes and tsunamis.
google map of highest points in each state Highest Points in All 50 States: Google map of state high points.
nasa articles and images NASA Images and Articles: Spectacular images of planets and galaxies, NASA missions and discoveries.
what is the Moho What is the Moho? Learn about the Mohorovičić Discontinuity.
yosemite rockfall Spectacular Yosemite Rockfall:A photo sequence of the fall and debris avalanche by Herb Dunn.
Volcanoes Volcanoes! A page that links to all of our volcano articles and to the best volcano information that we could find.
uses of gold The Many Uses of Gold: Learn how the unique properties of gold make it extremely suited for a large number of industrial uses.
Mount Vesuvius Mount Vesuvius: Photos, maps, eruption history, geologic hazards, plate tectonics and more. By Jessica Ball.
Sahara Desert satellite image Sahara Desert Satellite Images: Zoom in on pyramids, craters, volcanoes, dunes, Timbuktu.
East Africa Rift The East Africa Rift System: Learn about the Rift from James Wood and Alex Guth Michigan Technological University.
natural gas plays Natural Gas Shales: What's happening across the US in the : Marcellus, Haynesville, Utica, Fayetteville and Barnett Shales.
Uses of copperUses of Copper: One of the first metals widely used by people. Now it is used in almost every industry around the world.
Elements of Geology a classic text Elements of Geology: A classic geology text written in 1871. The entire book republished here.
LandslideLandslides: A USGS fact sheet explains different types of landslides and the kind of events that might trigger them.
Earth Science Records
World's Highest Mountain
Highest Mountain on Each Continent
Deepest Point in the Ocean
World's Largest Lake
World's Highest Waterfall
World's Deepest Lake
World's Largest Desert
World's Deepest Canyon
World's Largest Earthquake
World's Largest Tsunami
World's Largest Meteorite
The present is the key to the past.
Barents Sea Algal Bloom
Barents Sea Algal Bloom: Billions of phytoplankton cause spectacular swirls of color in the Barents Sea. NASA image.
New Earth Science Topics
renewable energyRenewable Energy Trends: The use of solar, wind, geothermal, biofuels and other renewables is rising but the total remains small.
Atlantic Ocean tsunamiAtlantic Ocean Tsunamis: These rare events can cause significant damage and threaten millions who live at low elevations.
Southern Ocean carbon release Southern Ocean Carbon Flow: At the end of the ice age the Southern Ocean may have rapidly released large amounts of CO2.
San Andreas Earthquake Frequency: Big quakes on the San Andreas might be more frequent than previously believed.
Yosemite rock fall hazards Yosemite Rock Fall Hazards: Video that explains what NPS is doing to reduce rock fall hazard withn the Park.
Samoa Tonga earthquake M 8.1 Earthquake Hides Two M 7.8 Quakes: Three huge earthquakes in just two minutes masked two from initial detection.
plant productivity map Plant Growth and Climate Change: Warming doesn't always boost plant growth. It can cause drought that reduces plant productivity.
Obsidian artifacts Obsidian Secrets: A study of artifacts and obsidian characteristics reveals the travel and trade routes of Native Americans.
Hawiian glaciers Hawaiian Glaciers and Climate Change: Processes in the North Atlantic can influence the climate at Mauna Kea.
where did life begin? Where Did Life Begin? The tiny spaces between mica sheets may have served as incubators for Earth's earliest life forms.
New Madrid Fault EarthquakesNew Madrid Mystery: A new theory might explain why large earthquakes occur far from an active plate boundary.
Sliding Rocks NASA at Racetrack Playa: NASA interns and mentors visit Racetrack Playa to solve the mystery of the sliding rocks.
Baffin Island mantle rocks Oldest Piece of Mantle: Researchers may have found a 4.5 billion-year-old slab of mantle under Baffin Island, Canada.
What triggers eruptions at Mount Hood? What Triggers Eruptions at Mount Hood? Reseachers believe that mixing magmas might trigger volcanic eruptions.
Liquefied natural gasWhat is LNG? The use of LNG as an energy source is growing rapidly. Learn about how it is produced, transported and used.
phytoplankton levels are decliningGlobal Phytoplankton Decline: Researchers discover that phytoplankton levels have been declining for over a century.
Geologic Time Updated: USGS has revised "Divisions of Geologic Time," showing rock unit names and age estimates.
Natural Gas Prices: Where are prices headed? It's hard to predict when supplies and uses of this clean-burning fuel are growing.
Finding diamondsImproving the Odds of Finding Diamonds: Information from the deep mantle and plate tectonics can help diamond hunters.
Uses of Natural Gas: Used in a wide variety of ways, natural gas is a clean fuel and a raw material for manufacturing.
Greenland ice melt and rebound Greenland Ice Melt and Uplift: The ice on Greenland is melting so fast that the land in some areas uplifts at a rate of over 1" per year!
Why does Stromboli erupt? Why Does Stromboli Erupt? Why has this volcano been erupting every five to twenty minutes for centuries?
Diamond formation Diamonds from Coal? Diamonds form under a variety of conditions that rarely involve coal as a source of carbon.
Indian Ocean Uneven Sea Level Rise: Indian Ocean sea levels are rising unevenly and threatening densely populated coastal areas.
Clay minerals and earthquakesCreeping and Locked Faults: An ultrathin layer of clay minerals might be the difference between violent and quiet fault movement.
how to pan for goldHow to Pan for Gold: Learn about panning for placer gold by watching the techniques of four experienced panners.
fireworks The Science of Fireworks: Learn how fireworks bursts of different shapes, patterns and colors are produced.
Largest oil spills map Largest Oil Spills Map: A map with the location of 11 large oil spills from war, tanker wrecks and out-of-control wells.
Jupiter impact Something Hit Jupiter: A dark bruise appeared in the southern hemisphere of Jupiter in July, 2009. Was it a comet or asteroid strike?
Santa Maria VolcanoSanta Maria Volcano: Located in Guatemala, it is the site of one of the largest eruptions of the twentieth century.
Gulf of Mexico Oil Spill Gulf Oil Spill: News stories, satellite images and videos that document the oil spill from the Deep Water Horizon accident.
Nile Delta oil and gas Nile Basin Oil and Gas: USGS estimates the volume of oil and natural gas resources in the eastern Mediterranean.
Major oil spills Major Oil Spills: How does the recent oil spill in the Gulf of Mexico compare to major spills of the past?
Ordovician Fossils Ordovician Fossil Discovery: A diverse assemblage of the oldest soft-bodied fossils found to date in Ordovician rocks.
Water ice Where Rocks are Made of Ice: NASA discovers that stream cobbles on Saturn's moon Titan are likely made of water ice.
Mount St. Helens Mount St. Helens - 30 Years: May 18th, 2010 is the 30th anniversary. Two USGS videos review the eruption and its impact.
Oil is found first in the mind.
Earth Science News
Zoom In On An Asteroid Impact Crater:  A Google Map that allows you to zoom...

Melting of Oregon's Largest Glacier:  "An Oregon State University research program has returned...

Views of the National Parks - Teaching Resource:  "The National Park Service's Views program, targeted to...

The Dinosaur that Terrorized Europe:  "Paleontologists have discovered that a close relative of...

Video: Perseid Meteor Shower:  This video shows a compilation of events seen...

EPA WaterSense:  The Environmental Protection Agency has "WaterSense" – an...

New Hump-Back Species of Dinosaur Discovered:  A new species of dinosaur, named Concavenator corcovatus,...

Detecting Volcanoes on Distant Planets:  "Now that astronomers are finding rocky worlds orbiting...

Impressive Debris Flow - Hunza, Pakistan:  This is one of the most impressive debris...

Hypoxia in US Coastal Waters:  "The occurrence of hypoxia, or low dissolved oxygen,...

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For Teachers
links between dinosaurs and birds questioned
Teacher resources Earth Science Teaching Ideas: Links to some of our own ideas and the best that we could find on the web.
plate tectonics drawing Teaching Plate Tectonics: Ideas for teaching plate tectonics with easy-to-draw illustrations.
Mineral identification chart Mineral Identification Chart Printable mineral ID chart by Art Crossman in MS Excel format.
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Category Pages
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Rock Photo Collections
hematite
Rock Photo Galleries:  Igneous Rocks, Metamorphic Rocks, Sedimentary Rocks.
Geologist Information
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Worldwide GeoSurveys

google earth map of plate tectonics Zoom in on Plate Boundaries! Explore them with Google maps.
geology dictionary Geology Dictionary:
Look up definitions in our free geology dictionary. Hundreds of geology term definitions at your fingertips.
geologic time scale Geologic Time Scale: Printable time scale in MS Word format for teacher or student use.

Interesting
gemstones from the U.S. United States Gemstones: What states produce the most gems?
Ticks and Lyme Disease Avoiding Ticks and Lyme Disease: Geologists and others who work in the field should know about ticks and Lyme disease.
coal through a microscope Coal Through a Microscope: Coal is more than a black rock. It's THE most interesting rock.
download google earth Download Google Earth Free!
High resolution 3D satellite views of Earth. Download it Free.
uses of granite Uses of Granite: The rock used for everything from kitchen counters to street curbing to the facing stone of skyscrapers.
pictures of the universe Pictures of the Universe: Views of the most interesting objects in our universe by NASA.
monitoring volcanoes from space Monitoring Volcanoes From Space: Learn how NASA keeps an eye on remote volcanoes.
homeowners policy Homeowners Insurance: The typical homeowners policy does't cover natural hazards. It is simply a fire and liability policy.
map of the arctic Who Owns the Arctic? USGS estimates that 25% of all new oil & gas will be found in the Arctic.
Observing Earth from Space Observing Earth from Space: Amazing satellite images that help us learn about Earth, appreciate its beauty and discover how it works.
expansive soil Expansive Soil: Causes more damage than earthquakes, floods, hurricanes & tornadoes combined.
rock tumbling instructions Rock Tumbler Instructions: Tumbling is a popular hobby. Here is a set of step-by-step instructions.
Geology underlies it all.

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