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News and Information About Geology and Earth Science

ShaleShale Shale - The rock that has quickly transformed the oil and gas industry. BasaltBasalt Basalt - Most of the ocean basin and part of the continents are underlain by basalt. GraniteGranite Granite - The intrusive igneous rock that underlies continents and countertops. OpalsOpal Pictures of Opal - A collection of different types of opal from all around the world and Mars too!
The Brewery Rock ?diatomite The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. Land Below Sea LevelLand Below Sea Level Land Below Sea Level - Did you know that dozens of land locations are below sea level? Geology.com NewsGeology News Geology.com News is updated several times each week. Read it here or receive email updates. RocksRocks Rocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions.
MineralsMinerals Minerals - Descriptions, photos, articles, properties and uses for common minerals. Pavlof VolcanoPavlof Volcano Pavlof Volcano is one of the most active volcanoes in North America and a threat to air traffic. GemstonesGemstones Gemstones - Colorful images and articles about diamonds and colored stones. What Is Earth Science?What Is Earth Science? What Is Earth Science? The study of Earth and its neighbors in space. Learn more!
Mount VesuviusMount Vesuvius Mount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions. Plate TectonicsPlate Tectonics Plate Tectonics - Articles, maps, information about plate tectonics and the interior of Earth. Homeowners InsuranceHomeowners Insurance Homeowners Insurance usually does not cover the most common geologic hazards. TroglobitesTroglobites Troglobites are creatures that have adapted to a permanent life in the darkness of a cave.
AmmoliteAmmolite Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites. DiamondsDiamonds Diamonds - Learn about the properties of diamond, its many uses and diamond discoveries. Uses of GoldUses of Gold The Many Uses of Gold - Unique properties make gold one of the most useful metals. Asteroid Impact MapAsteroid Impact Map Asteroid Impact Map - Explore fifty of the most obvious asteroid impact craters on Earth.
Oil and GasOil and Gas Oil and Gas - Articles about oil and natural gas in the US and around the world. Lunar Rift Systemlunar rift system Lunar Rift System? Gravity maps revise the geologic history of the near side of the moon. Sliding RocksSliding Rocks Sliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley? PeridotitePeridotite Peridotite is a chromite host rock, a source of diamonds and a possible carbon dioxide sink.
Find Minerals & GemsFee Mining Find Minerals and Gems - Dozens of sites where you can dig and keep what you find. Rock ArtRock Art Rock Art - People have been marking on rocks for thousands of years. MisconceptionDiamonds from Coal Diamond Misconception - Lots of people think that diamonds form from coal. Not True! NovaruptaNovarupta Most Powerful Eruption of the 20th Century - One hour later, the blast was heard in Juneau.
VolcanoesVolcanoes Volcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present. Fluorescent MineralsFluorescent Minerals Fluorescent Minerals glow with spectacular colors under ultraviolet light. Cave of the HandsCave of the Hands Cave of the Hands is a cave where ancient people painted hands about 9000 years ago. What is LNG?What is LNG? What is LNG? The use of LNG as an energy source is growing rapidly. Learn more about LNG.
What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. Bear AttacksBear Attacks Bear Attacks - Knowing how to react to a bear encounter or attack could save your life. Tallest TsunamiTallest Tsunami Tallest Tsunami - A wave with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. FossilsFossils Fossils - Learn about fossils and fossil discoveries around the world.
Google Earth - FreeDownload Google Earth Free Free Google Earth software allows you to browse seamless world satellite images. Free. Sea Level Rise MapSea Level Rise Map Sea Level Rise Map - A Google map that shows where flooding will occur as sea level rises. Teacher ResourcesTeacher Resources Teacher Resources - K-12 resources for teaching about earth science. Geologist Toolsgeologist tools Geologist Tools - Visit our store for a large selection of field and laboratory tools.
100+ Gemstonescolored stones 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. Facts About CopperCopper Facts About Copper - Information about copper uses, production, resources and more. AstronomyAstronomy Astronomy - Fantastic images and articles about solar system and deep-space astronomy. Gems from SpaceGems from Space Extraterrestrial Gems - A number of materials from space are used as attractive gems.
EmeraldEmerald Emerald is the most popular green gemstone in the United States and most of the world. LabradoriteLabradorite Labradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-colors MeteoritesMeteorites Meteorites - Rocks that were once parts of planets or large asteroids. SoapstoneSoapstone Soapstone is a metamorphic rock with properties that make it suitable for a variety of projects.
Rare Earth ElementsRare Earth Elements Rare Earths - Special materials used in electronics, defense, medical & many other products. Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity - Rating volcanic eruptions based upon the volume of tephra ejected. TurquoiseTurquoise Turquoise - A blue to bluish-green gem material that has been used for over 6000 years. US Diamond MinesUS Diamond Mines US Diamond Mines - Did you know that diamonds have been found in the United States?
Organic GemsOrganic Gems Organic Gems are gems formed from or by plants or animals. They might also be fossils. IoliteIolite Iolite is the gem variety of the mineral cordierite. An alternative to sapphire and tanzanite. Salt GlaciersSalt Glaciers Salt Glaciers are masses of salt that flow downslope under their own weight. ObsidianObsidian Obsidian - the volcanic rock that cools so quickly that it becomes a natural glass.
PumicePumice Pumice is a rock formed during explosive volcanic eruptions. It has a wide variety of uses. Mount EtnaMount Etna Mount Etna - The most active volcano in Europe continues an eruption that started in 2001. Crater of DiamondsCrater of Diamonds Crater of Diamonds - The only diamond mine in the world where you can be the miner. Petrified WoodPetrified Wood Petrified Wood is a fossil that forms when dissolved material preciptates and replaces wood.
San Andreas FaultSan Andreas Fault The San Andreas Fault - A feature that separates the Pacific and North American Plates. Largest EarthquakeLargest Earthquake Largest Earthquake ever recorded - Magnitude 9.5. Chile, 1960. SandSand Sand is a diverse material. This gallery includes photos of sand from around the world. CorundumCorundum Corundum is the third hardest mineral. It is also the mineral of ruby and sapphire.
SunstoneSunstone Sunstone is a gem feldspar with aventurescence caused by light reflecting from platy inclusions. What is Geology?What is Geology? What is Geology? - The study of Earth materials, structures, processes and life over time. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions - A description of the most common eruption types. Watch out for Ticks!ticks Ticks are a problem for geologists in some areas. Learn to recognize and avoid them.
Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. Uses of MarbleUses of Marble The Uses of Marble are numerous and diverse. You will be surprised by how it is used. Dowsingdowsing Dowsing is a method used to find underground water that is rejected by most geologists. Horizontal DrillingHorizontal Drilling Horizontal Drilling has opened new resources and significantly improved productivity.
Earthquake MapsEarthquake Maps California Earthquake Maps - A collection of isoseismal maps for earthquakes in California. Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color. MetalsMetals Metals are important mineral products used in manufacturing and construction projects. USA Landslide MapLandslides Landslide Incidence Map - A USGS map showing landslide incidence in the United States.
The Acid TestThe Acid Test The Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals. Ruby and Sapphireruby and sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. Frac SandFrac Sand Frac Sand - The amount of frac sand produced in the USA is up by over 300% since 2009. GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses.
Tallest MountainTallest Mountain Tallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth. Geologic Time ScaleGeologic Time Scale Divisions of Geologic Time - USGS time scale with unit names and age estimates. Volcanoes in SpaceExtraterrestrial Volcanoes Extraterrestrial Volcanoes - Earth is not the only solar system body with volcanic activity. OlivineOlivine Olivine is a rock-forming mineral found in the crust, the mantle, and in some meteorites.
Oil SandsOil Sands Oil Sands contain oil in the form of bitumen. A major oil resource that can be difficult to produce. AmetrineAmetrine Ametrine is a bicolor quartz (amethyst + citrine) and a gemstone of growing popularity. Chatoyant GemsChatoyant Gems Chatoyant Gems look like the eye of a cat. They have a line of light that moves across the stone. Rocks on MarsRocks on Mars Rocks on Mars - Many of the rocks found on Mars are not very different from Earth rocks.
ScoriaScoria Scoria is a dark-colored, extrusive igneous rock with abundant vesicles. Methane HydrateMethane Hydrate Methane Hydrate deposits contain more fuel value than all other fossil fuels combined. Dangerous MinesAbandoned Mine Accidents Abandoned Mine Accidents kill 20 to 30 per year. Many can be prevented with education. Coal Close UpCoal through a microscope Coal Through a Microscope - Coal is more than a black rock. It is THE most interesting rock.
What is a Geyser?What is a Geyser? Photos of Geysers from around the world with information about height, eruption interval, more. Largest DesertLargest Desert Largest Desert - The Sahara is huge but two polar deserts are larger. Largest VolcanoesLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. Dallol VolcanoDallol Volcano Strange Volcanic Landscape! Photos of Dallol Volcano - an explosion crater in Ethiopia.
Hydraulic FracturingHydraulic Fracturing Hydraulic Fracturing - Increases well yield by fracturing the reservoir rock with fluid injection. Eagle Ford ShaleEagle Ford Shale Eagle Ford Shale - One of the most prolific producers of oil and gas in the United States. Salt DomesSalt Domes Salt Domes - Columns of salt that move upwards because of their low specific gravity. MarbleMarble Marble - The rock that forms from the metamorphism of limestone and has a diversity of uses.
       

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