农村四轮电动车大概多少钱一辆 Geology and Earth Science News, Articles, Photos, Maps and More

Advertising Categories DiamondsEarthquakesFossilsGemstonesGeneral GeologyGeologic HazardsGeology DictionaryGeology NewsGeology.com StoreGoldLandslidesMetalsMeteoritesMineralsOil and GasPlate TectonicsRocksRock TumblersSatellite ImagesTeacher ResourcesU.S.A. MapsVolcanoesWorld MapWorld Records Map Collections Africa MapsAntarctica MapArctic MapAsia MapsAustralia MapCanada MapsCaribbean MapsCentral America MapsEurope MapsNorth America MapsSouth America MapsUnited States MapsWorld Maps Advertising Geology and Earth Science News and Information Categories Diamonds Earthquakes Fossils Gemstones General Geology Geologic Hazards Gold Landslides Metals Meteorites Minerals Oil and Gas Plate Tectonics Rocks Satellite Images Teacher Resources U.S. Maps Volcanoes World Maps World Records E.T. VolcanoesSolar System Volcanoes - Earth is not the only location of volcanic activity. What is a Geyser?What is a Geyser? Photos and information about geysers in many parts of the world. Strawberry QuartzStrawberry Quartz is a red to pink quartz with inclusions that look like strawberry seeds. Gifts That RockGifts That Rock - What are the most popular gift items in the Geology.com store? Fluorescent MineralsFluorescent Minerals and rocks glow with spectacular colors under ultriolet light. Geology NewsGeology News including: Earth science, mining, gemology, maps, metals, archaeology, and more. Petrified WoodPetrified Wood is a fossil that forms when silica replaces and infills the cities of wood. 100+ Gemstones100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. FossilsFossils are remains, traces or imprints of ancient life. They reveal Earth's biological history. Crater of DiamondsCrater of Diamonds - The only diamond mine in the world where you can be the miner. Crystal HabitCrystal Habit is the external shape displayed by a crystal or an aggregate of crystals. Plate TectonicsTeaching Plate Tectonics with easy-to-draw illustrations is fun and effective. Mineral HardnessMohs Hardness Scale is a set of reference minerals used for classroom hardness testing. Types of MapsTypes of Maps - Explore some of the most popular types of maps that he been made. Rock SaltRock Salt is a sedimentary rock composed of the mineral halite. It has many uses! Hardness PicksHardness Picks - Test for hardness with precise and easy-to-use hardness picks. Largest HurricanesLargest Hurricanes Are they determined by wind speed, value of damage, most deaths? Bear MapRange of Bear Species - Where you might encounter different types of bears. Rock and Mineral KitsRock & Mineral Kits The best way to learn about rocks and minerals is with specimens! Cinder ConesCinder Cones are the smallest, simplest, and most common type of volcano. Rocks on MarsRocks on Mars Many of the rocks found on Mars are not very different from Earth rocks. US Diamond MinesUS Diamond Mines - Did you know that diamonds he been mined in the United States? Tallest MountainTallest Mountain - Everest has rivals in tallness, altitude and distance to the center of Earth. Great Rift ValleyThe East Africa Rift System - The extensive fault system that is tearing Africa apart. Hurricane NamesHow Are Hurricanes Named? There is a plan for naming tropical storms. DeLorme AtlasTopo Maps - The DeLorme Atlas is an entire state of topo maps in one convenient book. Rock TumblersRock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler. Uses of GoldThe Many Uses of Gold - Unique properties make gold one of the most useful metals. Fireworks!The Science of Fireworks Metal oxides are what produce the bright colors of fireworks. Ruby and SapphireRuby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. Tallest WaterfallAngel Falls in Venezuela is the tallest waterfall in the world - it is 3212 feet tall. American GemstonesMined in America - Small mines in the United States produce a diversity of beautiful gemstones. TourmalineTourmaline - an extremely colorful mineral and gem material. Fool's GoldFool's Gold is a name used for pyrite when its brassy color fools people looking for gold. CinnabarCinnabar - the only important ore of mercury. Used in pigments until its toxicity was realized. Rare Earth ElementsRare Earths - Special materials used in electronics, defense, medical & many other products. Grape AgateGrape Agate is a popular mineral specimen with the color and the shape of a bunch of grapes. Darvaza Gas CraterThe Doorway to Hell is a flaming sinkhole seeping natural gas that has been burning for decades. Fire OpalFire Opal is a transparent to translucent opal with a yellow, orange or red background color. GeodesGeodes look like ordinary rocks on the outside but can be spectacular inside! Lightning Strikes MapLightning Strikes Map by NASA shows the worldwide distribution of lightning activity. TurquoiseTurquoise - A bluish-green gem material that has been used for over 6000 years. BirthstonesBirthstones are gems assigned to the month of a person's birth. They are popular gifts in the U.S. LabradoriteLabradorite is a feldspar mineral that sometimes exhibits an iridescent play-of-color. ShaleShale - The rock that has quickly transformed the oil and gas industry. Bear AttacksBear Attacks - Knowing how to react to a bear encounter or attack could se your life. MineralsMinerals - Descriptions, photos, articles, properties and uses for common minerals. The British IslesNames Used for Great Britain, British Isles, United Kingdom, and Ireland. What they mean. Gems from SpaceExtraterrestrial Gems - A number of materials from space are used as attractive gems. OlivineOlivine - Abundant in Earth's mantle. A constituent of meteorites. The gem peridot. Herkimer DiamondsHerkimer Diamonds Doubly-terminated quartz crystals used as specimens and gems. AndalusiteAndalusite is a metamorphic mineral and a strongly pleochroic gem. EmeraldEmerald is the most popular green gemstone in the United States and most of the world. Largest VolcanoesLargest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. ChalkChalk is a variety of limestone formed from fine-grained marine sediment known as ooze. GraniteGranite - The intrusive igneous rock that underlies continents and countertops. VolcanoesVolcanoes - Articles about volcanoes, volcanic hazards and eruptions past and present. Plate TectonicsPlate Tectonics - Articles and maps about plate tectonics and the interior of Earth. TanzaniteTanzanite was unknown until a few decades ago but it has erupted into wide popularity. RhodochrositeRhodochrosite - a manganese mineral used as an ore, a pink gem and an ornamental stone. MeteoritesMeteorites - Rocks that were once parts of planets or large asteroids. Canadian DiamondsCanadian Diamond Mines produce some of the largest and highest quality diamonds! Lapis LazuliLapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history. IlmeniteIlmenite - The primary ore of titanium and source of most titanium dioxide. Hawaiian Hot SpotHow did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot. The Acid TestThe Acid Test - Geologists use dilute hydrochloric acid to identify carbonate minerals. Teacher ResourcesTeacher Resources - K-12 resources for teaching about earth science. RhyoliteRhyolite An extrusive igneous rock with a high silica content, produced from granitic magma. Ce of the HandsCe of the Hands is a ce where ancient people painted hands about 9000 years ago. Lab-Grown DiamondsLab-Grown Diamonds? What are they? Can people really make diamonds? Are they real? ChalcopyriteChalcopyrite - The most important ore of copper for over five thousand years. GemstonesGemstones - Colorful images and articles about diamonds and colored stones. RocksRocks - Galleries of igneous, sedimentary and metamorphic rock photos with descriptions. Google Earth - FreeFree Google Earth software allows you to browse seamless world satellite images. Free. QuartziteQuartzite is metamorphic rock formed when sandstone is subjected to heat and pressure. Earthquake MapsCalifornia Earthquake Maps - A collection of isoseismal maps for earthquakes in California. Rock ArtRock Art - People he been marking on rocks for thousands of years. San Andreas FaultWhat is the San Andreas Fault? Map, photos and description of the fault. The Brewery Rock ?The Rock Used to Make Beer - Geologists are beer experts and should know about this rock. Map of the OceansMap of the Oceans - showing the Atlantic, Pacific, Indian, Arctic, and Southern Oceans. Types Of EruptionsTypes of Volcanic Eruptions - A description of the most common eruption types. Colored DiamondsColored Diamonds are diamonds with a noticeable body color. They can sell for over $1M/carat. Wall MapsWall Maps - Wall maps of the world, continents, states and the USA. DiamondsDiamonds - Learn about the properties of diamond, its many uses, and diamond discoveries. Uses of TalcTalc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products. Great LakesGreat Lakes : Map of the Great Lakes with surrounding states and provinces. Blue FlamesBlue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano. Gem SilicaGem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony. CorundumCorundum is the third hardest mineral. It is also the mineral of ruby and sapphire. Spinel13 Gemmy Facts About Spinel - Is spinel the world's most overlooked gem? ZirconZircon is the primary ore of zirconium and a gemstone that is ailable in many colors. ObsidianObsidian - the volcanic rock that cools so quickly that it becomes a natural glass. Geology BooksGeology Books - A variety of books for reference, field trips, reading and more. Mount VesuviusMount Vesuvius - geology, history, maps, facts and more about the Vesuvius eruptions. Sand Photo CollectionSand from Around the World . A photo gallery showing the diversity of the material we call "sand". Tallest TsunamiTallest Tsunami - A we with a run-up height of 1720 feet occurred in Lituya Bay, Alaska. HematiteHematite - The most important ore of iron. A source of mineral pigment since prehistory. What is Geology?What is Geology? The study of Earth materials, structures, processes and life over time. OpalsPictures of Opal - A collection of different types of opal from all around the world and Mars too! What Is Earth Science?What Is Earth Science? The study of Earth and its neighbors in space. Learn more! MineraloidsMineraloids are amorphous naturally-occurring inorganic solids that lack crystallinity. MisconceptionDiamond Misconception - Many people think that diamonds form from coal. Not True! SoapstoneSoapstone is a metamorphic rock with properties that make it suitable for a variety of projects. Gold PansGold Pans and Panning Kits - classifiers, snuffer bottles. Learn how to pan for Gold. Ethiopian OpalEthiopian Opal - The new opal heyweight that might give Australia a run. What Is The Moho?What Is The Moho? The Mohorovicic Discontinuity is the mantle/crust boundary. Sliding RocksSliding Rocks Mystery - What causes these rocks to slide across a playa in Death Valley? June 6th 1912Novarupta - The most powerful volcanic eruption of the 20th century occurred in the U.S.A. Field CoursesField Courses - Over 80 field courses for undergraduate geology students. Greatest Ocean DepthDeepest Point in the Ocean The deepest point in the ocean is in the Mariana Trench. Largest EarthquakeLargest Earthquake ever recorded - Magnitude 9.5. Chile, 1960. Underwater VolcanoHawaii's Next Island could be growing in the Pacific Ocean right now. Its name is Lo'ihi. © 2005-2025 Geology.com. All Rights Reserved. Images, code, and content on this website are property of Geology.com and are protected by copyright law. Geology.com does not grant permission for any use, republication, or redistribution.