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News and Information About Geology and Earth Science

PumicePumice Pumice is a rock formed during explosive volcanic eruptions. It has a wide variety of uses. Earthquake MapsEarthquake Maps California Earthquake Maps : A collection of isoseismal maps for earthquakes in California. IoliteIolite Iolite is the gem variety of the mineral cordierite. An alternative to sapphire and tanzanite. Teacher ResourcesTeacher Resources Teacher Resources : K-12 resources for teaching about earth science.
MineralsMinerals Minerals Descriptions, photos, articles, properties and uses for common minerals. Geology.com NewsGeology News Geology.com News is updated several times each week. Read it here or receive email updates. Rare Earth ElementsRare Earth Elements Rare Earths Special materials used in electronics, defense, medical & many other products. Find Minerals & GemsFee Mining Find Minerals and Gems : Dozens of sites where you can dig and keep what you find.
RocksRocks Rocks Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used. Organic GemsOrganic Gems Organic Gems are gems formed from or by plants or animals. They might also be fossils.
SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects. New Eruptions on IoSolar System Volcanoes Eruptions launch lava hundreds of miles above the surface of Io, a moon of Jupiter. Oil and GasOil and Gas Oil and Gas Articles about oil and natural gas in the US and around the world. Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free.
What is a Geyser?What is a Geyser? Photos of Geysers from around the world with information about height, eruption interval, more. ScoriaScoria Scoria is a dark-colored, extrusive igneous rock with abundant vesicles. Sea Level Rise MapSea Level Rise Map Sea Level Rise Map A Google map that shows where flooding will occur as sea level rises. US Diamond MinesUS Diamond Mines US Diamond Mines : Did you know that diamonds have been found in the United States?
Rocks on MarsRocks on Mars Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood. CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire. Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards.
GemstonesGemstones Gemstones Fantastic images and articles about diamonds and colored stones. Sliding RocksSliding Rocks Sliding Rocks Mystery What causes these rocks to slide across a playa in Death Valley? Dangerous MinesAbandoned Mine Accidents Abandoned Mine Accidents take 20 to 30 lives per year. Many can be prevented with education. DiamondsDiamonds Diamonds Learn about the properties of diamond, its many uses and diamond discoveries.
Frac SandFrac Sand Frac Sand The amount of frac sand produced in the USA is up by over 300% since 2009. Geologist Toolsgeologist tools Geologist Tools Visit our store for a large selection of field and laboratory tools. Tallest TsunamiTallest Tsunami Tallest Tsunami A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. Salt DomesSalt Domes Salt Domes are columns of salt that move upwards because of the salt\'s low specific gravity.
Mount EtnaMount Etna Mount Etna The most active volcano in Europe continues an eruption that started in 2001. Plate TectonicsPlate Tectonics Plate Tectonics Articles, maps, information about plate tectonics and the interior of Earth. Gems from SpaceGems from Space Extraterrestrial Gems A number of materials from space are used as attractive gems. Bear AttacksBear Attacks Bear Attacks Knowing how to react to a bear encounter or attack could save your life.
FossilsFossils Fossils Learn about fossils and fossil discoveries around the world. OlivineOlivine Olivine is a rock-forming mineral found in the crust, the mantle, and in some meteorites. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map Explore fifty of the most obvious asteroid impact craters on Earth. GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses.
Coal Close UpCoal through a microscope Coal Through a Microscope Coal is more than a black rock. It is THE most interesting rock. Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them. Largest VolcanoesLargest Volcanoes Largest Volcano That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. AmmoliteAmmolite Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.
Fireworks & ScienceFireworks The Science of Fireworks Their shapes and colors are produced through chemistry, physics & art. Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. AstronomyAstronomy Astronomy Fantastic images and articles about solar system and deep-space astronomy. Fluorescent MineralsFluorescent Minerals Fluorescent Minerals glow with spectacular colors under ultraviolet light.
SandSand Sand is a diverse material. This gallery includes photos of sand from around the world. SunstoneSunstone Sunstone a gem feldspar with aventurescence caused by light reflecting from platy inclusions. LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago.
Land Below Sea LevelLand Below Sea Level Land Below Sea Level Did you know that dozens of land locations are below sea level? The Acid TestThe Acid Test The Acid Test Geologists use dilute hydrochloric acid to identify carbonate minerals. MisconceptionDiamonds from Coal Diamond Misconception Lots of people think that diamonds form from coal. Not True! AmetrineAmetrine Ametrine is a bicolor quartz (amethyst + citrine) and a gemstone of growing popularity.
Uses of GoldUses of Gold The Many Uses of Gold Unique properties make gold one of the most useful metals. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions A description of the most common eruption types. EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world. San Andreas FaultSan Andreas Fault The San Andreas Fault A feature that separates the Pacific and North American Plates.
Flaring from SpaceFlaring from Space at Night Flaring from Space at Night Views of Earth show oil field illumination and gas flaring. TurquoiseTurquoise Turquoise - A blue to bluish-green gem material that has been used for over 6000 years. Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity.
Facts About CopperCopper Facts About Copper Information about copper uses, production, resources and more. Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing Increases well yield by fracturing the reservoir rock with fluid injection. Rock ArtRock Art Rock Art People have been marking on rocks for thousands of years. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color.
Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity Rating volcanic eruptions based upon the volume of tephra ejected. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. USA Landslide MapLandslides Landslide Incidence Map A USGS map showing landslide incidence in the United States. VolcanoesVolcanoes Volcanoes Articles about volcanoes, volcanic hazards and eruptions past and present.
Pavlof VolcanoPavlof Volcano Pavlof Volcano is one of the most active volcanoes in North America and a threat to air traffic. Dallol VolcanoDallol Volcano Strange Volcanic Landscape! Photos of Dallol Volcano - an explosion crater in Ethiopia. Salt GlaciersSalt Glaciers Salt Glaciers are masses of salt that flow downslope under their own weight. Tallest MountainTallest Mountain Tallest Mountain Everest has rivals in tallness, altitude and distance to the center of Earth.
Eagle Ford ShaleEagle Ford Shale Eagle Ford Shale One of the most prolific producers of oil and gas in the United States. Largest DesertLargest Desert Largest Desert The Sahara is huge but two polar deserts are larger. Largest EarthquakeLargest Earthquake Largest Earthquake The largest earthquake ever recorded: Chile, 1960, Magnitude 9.5. What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG.
Oil SandsOil Sands Oil Sands contain oil in the form of bitumen. A major oil resource that can be difficult to produce. MetalsMetals Metals are important mineral products used in manufacturing and construction projects. PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink. NovaruptaNovarupta Most Powerful Eruption of the 20th Century - One hour later, the blast was heard in Juneau.
       

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