|Spectacular Fossils of the Green River Formation. Some of the world's best- fossil fish from an intermountain lake. |
|What Does a Geologist Do? |
Learn about the interesting work of geologists in two short videos about the relevance of geology today.
|What is Earth Science?It is the study of Earth and its neighbors in space. It includes geology, astronomy, meteorology & oceanography.|
|Roadside Geology Guides: A great way to learn about the geology of your home area and the perfect road trip companion. |
|Fluorescent Minerals glow with spectacular colors when illuminated in the dark with an ultraviolet lamp.|
||Meteorites: An introduction to rocks from outer space from meteorite hunter, Geoffrey Notkin.
|Diamond: Articles, news, videos, production data, and information related to gem and industrial diamond worldwide.
|Marcellus Shale: The most overlooked resource in the eastern United States!|
| Herkimer Diamonds: Learn how to find these doubly terminated quartz crystals at Herkimer, NY.|
|What Are Minerals? They are part of nearly everything that we use: vehicles, medicine, coins, pencils, cell phones, food and more.|
|The Many Uses of Gold: Learn how the unique properties of gold make it extremely suited for a large number of industrial uses. |
|Landslides: A USGS fact sheet explains different types of landslides and the kind of events that might trigger them.|
|Mohs Hardness Scale is a set of reference minerals used to estimate the relative hardness of mineral specimens.|
|Petrified Wood is a fossil that forms when dissolved solids in groundwater preciptate and replace woody material.|
|The Acid Test: Geologists use dilute hydrochloric acid to identify carbonate minerals and detect their presence in rocks.||
|Rocks on Mars: A number of different types of rocks have been identified on Mars. Many of them are very similar to Earth rocks.
|United States Gemstones: A diversity of gemstones are produced in the U.S. - mostly from very small mines and by rockhounds.|
|Fee Mining sites are mines that you can enter, pay a fee, and keep any gold, gems or minerals that you find. :-)|
|Largest Landslides: The Heart Mountain Slide and Storegga Slide are the largest known subaerial and submarine landslides.|
|Sunstone is a gem feldspar that exhibits aventurescence caused by the reflection of light from inclusions within the stone.|
|What is a Maar? The second most common volcanic landscape feature on Earth. Do you know how they form?|
|Salt Glaciers are masses of salt that erupt onto Earth's surface and flow downslope under their own weight.
|Salt Domes are mounds or columns of salt that have risen above their parent rock unit because of the salt's low specific gravity.|
|Pavlof Volcano on the Alaska Peninsula is one of the most active volcanoes in North America and a threat to air traffic.|
|Volcanic Explosivity: Rating recent and historic volcanic eruptions based upon the volume of tephra ejected.|
|Triboluminescence is a flash of light produced when a mineral is subjected to friction, impact or breakage. |
|Life on Europa? This moon of Jupiter with a subsurface ocean is now a prime target in the search for life beyond Earth.|
|Mount Cleveland is one of the most active volcanoes in Alaska's Aleutian Island Arc and its ash plumes are a threat to air traffic.|
|Troglobites are small creatures that have adapted completely to a permanent life in the darkness of a cave.||
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Look up definitions in our free geology dictionary. Hundreds of geology term definitions at your fingertips.
|Homeowners Insurance usually does not cover damage caused by floods, landslides, earthquakes and other geohazards.|
|Opals: Gem quality opal is one of the most spectacular gemstones. A single stone can flash with every color of the spectrum.|
|Gold: A survey of how gold has been an important metal for thousands of years. Learn about uses, prospecting, mining, more.|
|Supersize Topo Maps: The folks at Mytopo.com are now printing topo maps up to 5'x8' or 8'x5' in size. You can also get smaller maps and aerial photos. We are MyTopo affiliates.|
|Geology Tools: Visit the Geology.com store for rock hammers, hand lenses, field books and other tools for the geologist.|