Geological processes and formations.
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Volcano vs. Supervolcano 1. Volcano: Common volcanos such as Láscar and Uturuncu are formed when water is released from oceanic plates in subduction zones. Supervolcanos are also found near subduction zones, or above mid-plate hotspots.
Volcanic explosivity index
Explosions Volcanic, Volcanic Explosions, Volcanic Eruption, Widely Known Explosions
The Volcanic Explosivity Index is used to compare the size of explosive volcanic eruptions. Image; The spheres in the illustration represent the volume of erupted tephra for some of the most widely-known explosive volcanic eruptions. Although most people believe that Vesuvius (79 AD - the Pompeii eruption), Mount St. Helens (1980) and Mount Pinatubo (1991) were enormous, they are very small compared to ancient eruptions such as Wah Wah Springs, Toba, Yellowstone or Long Valley Caldera.
Comparison of major United States supereruptions (VEI 7 and 8) with major historical volcanic eruptions in the 19th and 20th century. From left to right: Yellowstone 2.1 Ma, Yellowstone 1.3 Ma, Long Valley 6.26 Ma, Yellowstone 0.64 Ma . 19th century eruptions: Tambora 1815, Krakatoa 1883. 20th century eruptions: Novarupta 1912, St. Helens 1980, Pinatubo 1991.
Вулканичен експлозивен индекс — Уикипедия
Quartz with blue fluorite inclusions.
Con Inclusion, Blue Fluorite, Gorgeous Stones, Crystals Beautiful, Minerals Friends, Blue Diamonds, Quartz, Fluorite Inclusive, Cuarzo Con
Cuarzo con inclusiones azules de Fluorita
Quartz with blue fluorite inclusions. / Mineral Friends
**this is a gorgeous stone Quartz with blue fluorite inclusions.
Tectonic Plates on Earth
Geology, Call, Earthquake Ar, Earth Plates, Plate Tectonics, Geography Plates, Tectonics Plates, Plates Tectonics, Deadliest Earthquake
Geology - DEEPSEA CHALLENGE and Ocean Science
earth's plates or, as I like to call it, why Iran is screwed.
The Top 5 Deadliest Earthquakes In History - 5top.com
pangea national geographic | Geography Plate Tectonics
The Geological Time Spiral
Data Visual, Geology Time, Graphics Design, Earth, Illustration Art, Infographic, Nature History, Science, Time Spirals
amazing detail in illustration art
Stunning Infographics and Data Visualization
This Geologic Time Spiral Infographic shows the geologic timeline of the Earth, which is 4.6 billion years old. It attempts to visualize a very difficult concept, the idea of how long 4.6 billion years really is. Because of human's large number bias and inability to comprehend such large numbers, we cannot really grasp how long 4.6 billion years really is. If the time of earth was put onto a 12-hour clock, human existence would equate to less than one-tenth of a second.
Time Spiral - Places & Spaces: Mapping Science
Beautiful lies - infographics inspirations: natural history infographics
Ethiopian kryptonite (opal) | via Jeff Schultz on Flickr
Gemme Pierre, Incredibles Opals, Nature, Ethiopian Kryptonite, Precious, Beautiful Stones, Kryptonite Opals, Photos Shared, Jeff Schultz
Ethiopian Kryptonite - An Incredible Opal - Flickr - Photo Sharing!
Gallium: A metal with a melting point of a little over 27 degrees centigrade. Meaning it melts from solid state to liquid state in your hand
Gallium, Hands, Gift Ideas, Metals, Geek Gift, Originals Gift, Gift Cards, Melted, Science
Victoria Secret Original Gift Card - http://p-interest.in/ Manufactured Gallium (element) crystal melting in the palm of a hand. pinkenbrandt
Great geeky gift ideas- Gallium is a silvery metal with atomic number 31. It's used in semiconductors and LEDs, but the cool thing about it is its melting point, which is only about 85 degrees Fahrenheit. If you hold a solid gallium crystal in your hand, your body heat will cause it to slowly melt into a silvery metallic puddle. Pour it into a dish, and it freezes back into a solid.
Geek gift: Gallium- melting point is 85 degrees, melts in your hand. purchase link http://www.mcssl.com/store/gallium-source/gallium-metal
Fire Opal in matrix, Mexico | via Jeff Schultz on Flickr
Clouds, Orange, Fire Opals, Mexico, Colors, Sunsets, Gem, Stones, Rocks
Beautiful Fire Opal – A Sunset Within a Gem Captured by Jeff Schultz, this fire opal is simply breathtaking. It is much like getting a glimpse of what a sunset might look like from above the clouds. The vibrant orange color when the light hits it and the cloud-like appearance at the bottom of the stone is really what makes it so gorgeous.
This is a rare "Fire Opal" or Girasol, found in Mexico. It looks like there are little clouds inside. This looks like a sunset in a rock. amazing!!!!!!!!
In this beautiful close up by gemstone hobbyist Jeff Schultz, we see a stunning Mexican fire opal. When illuminated just right, it looks like a sunset above the clouds. Fire opals are transparent to translucent with warm body colors of yellow, orange, orange-yellow or red. The most popular source of fire opals is the state of Querétaro in Mexico.
Helpful gem chart
Crystals, Charts, Gemstones, Precious Stones, Gem Stones, Stones Jewelry, Rocks Collection, Gem Chart, Minerals
Gem, stones, and crystals chart
Precious stones chart.
Crystals & Stones: #Gem #Chart.
gem chart.. I'll have to go thru my old rock collection!
Gemstone guide #crystals #minerals
Crystals & Stones: Gemstone Chart
Amethyst Crystal Ball
Amethysts Crystals, Rocks And Minerals Blue, Crystal Ball, Crystals Stones, Minerals Magic, Rocks Gem Minerals, Crystals Ball, Crystals Gem, Agates Geode
Chalcedony & Agate Geode
themagicfarawayttree: Amethyst Crystal Ball
2.4" Amethyst Geode Sphere, Crystal Ball
Opals Beautiful, Nature Boulder, Opals Australia, Queensland Australia, Preshong Jewelry, Boulder Opals Jewelry, Colors Gemstones, Australian Boulder, Australian Opals Jewelry
Blog - Laura Preshong Jewelry ~ roughly 95 percent of the world's opals come from Australia
Australian Boulder opal
Natural Boulder Opal
Boulder Opal ~Queensland, Australia.
Blog - Laura Preshong Jewelry
Veszelyite. One of the minerals called phosphates. All phosphates have the phosphate group, PO4, in their chemical composition. Many phosphates form from the chemical alteration of other minerals in the presence of oxygen. Group: Phosphates. Image Number: 97-35129. Catalog Number: 148368. M. Stuart
Geology, Nature'S Gem, Beautiful Gem, Veszelyit 148368, National Minerals, Rocks Fossils Minerals, Copper Minerals, Minerals Collection, Crystals Gemstones Minerals
Veszelyite (148368) from the National Mineral Collection
Veszelyite: (Cu,Zn)2ZnPO4(OH)3•2(H2O) Found with secondary copper minerals.
Smithsonite. The mineral was named after James Smithson, the British chemist and mineralogist who first recognized it as a distinct mineral, different from calamine(hemimorphite). It is mined for zinc. James Smithson (1754-1829) was the founder of the Smithsonian Institution. Group: Carbonates, Image Number: MSA 62
Distinctive Minerals, Semiprecious Stones, Smithsonian Institution, Image Numbers, James Smithson, Gorgeous Green, Smithson 1754 1829, Gem Minerals, British Chemist
Liddicoatite. Slice from a single crystal of liddicoatite. The colour-zoning reveal the crystal's history, just as the rings in a tree records its past. Crystals may start and stop growing many times. In most cases, there is no way of knowing how long each phase lasted. This particular crystal changed color as it grew. The pink portion of the liddicoatite formed when the solution feeding it was manganese rich. The green part grew when the solution became iron rich.
Geology, National Minerals, Liddicoatit Tourmaline, Minerals Gallery, Pink Tourmaline Crystals, Beautiful Stones, Gems Gemstones, Crystals Gems Rocks, Minerals Collection
Liddicoatite from the National Mineral Collection.
Triangle Growth Pattern on a Liddicoatite Tourmaline Crystal (from Madagascar)
Liddicoatite - Mineral Gallery - Smithsonian Institution
Rare Nipomo marcasite in agate, from California.