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Yellowstone - geysers and supervolcano

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Information about Yellowstone - geysers and supervolcano
Education

Published on August 5, 2008

Author: Silly

Source: authorstream.com

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Yellowstone : Yellowstone Geysers and supervolcano What is a geyser? : What is a geyser? A geyser is a type of hot spring that erupts periodically, ejecting a column of hot water and steam into the air. The name geyser comes from Geysir, the name of an erupting spring at Haukadalur, Iceland; Geyser is geothermal spring, caused by volcanic activity. Where do geysers occur? : Where do geysers occur? Geysers occur only in volcanic regions. There are several such regions on Earth, The five largest geyser fields in the world are: Yellowstone National Park, Wyoming, United States Dolina Geiserov, Kamchatka, Russia El Tatio, Chile, South America Taupo Volcanic Zone,New Zealand Iceland, Europe Other geysers can be found in: California, Peru, Bolivia, Mexico, Dominica, Azores, Kenya and Japan. There are 1000 geysers in the world, more than 200 of them are in Yellowstone. : There are 1000 geysers in the world, more than 200 of them are in Yellowstone. The most famous one is OLD FAITHFUL. The interval of eruption normally ranges between 68 and 93 minutes. It can erupt about 15 times a day. Old Faithful : Old Faithful Slide 6: You can see it on the Old Faithful webcam ! Yellowstone geysers : Yellowstone geysers Iceland : Iceland Chile, El Tatio geysers : Chile, El Tatio geysers Where is Yellowstone ? : Where is Yellowstone ? Yellowstone has so many different things to see and do it is amazing. The park is huge, it is bigger than the states of Delaware and Rhode Island combined. The park covers 2,219,823 acres / 898,714 hectares, 3,472 square miles / 8,987 square km, miles north to south - 63 / 102 km, miles east to west - 54 / 87 km. Slide 12: Under the water stream in Earth crust there is a heat source caused by volcano. In Yellowstone that is the largest supervolcano on Earth with caldera that has capacity of 2500 cubic km. What is a super volcano? : What is a super volcano? What is a caldera? : What is a caldera? The largest and most explosive volcanic eruptions eject tens to hundreds of cubic kilometers of magma onto the Earth's surface. When such a large volume of magma is removed from beneath a volcano, the ground collapses into the emptied space, to form a huge depression called a caldera. Some calderas are more than 25 kilometers in diameter and several kilometers deep. Crater lake caldera : Crater lake caldera The Yellowstone Caldera, sometimes known as the Yellowstone supervolcano, measures 55 kilometers by 72 kilometers .The caldera was discovered based on geological field work conducted by Bob Christiansen of the United States Geological Survey in the 1960s and 1970s. : The Yellowstone Caldera, sometimes known as the Yellowstone supervolcano, measures 55 kilometers by 72 kilometers .The caldera was discovered based on geological field work conducted by Bob Christiansen of the United States Geological Survey in the 1960s and 1970s. Other supervolcanoes on Earth : Other supervolcanoes on Earth Slide 20: Calderas are among the most spectacular and active volcanic features on Earth. Earthquakes, ground cracks, uplift or subsidence of the ground, and thermal activity such as hot springs, geysers, and boiling mud pots are common at many calderas. Yellowstone hot lakes on photos. What else can you see in Yellowstone? : What else can you see in Yellowstone? Mammoth plate hot springs Slide 22: More geysers of course…. Thermal flows : Thermal flows Waterfalls : Waterfalls Yellowstone and Snake river : Yellowstone and Snake river Beautiful landscape : Beautiful landscape Amazing wildlifeBald eagle, ground hog and bison : Amazing wildlifeBald eagle, ground hog and bison Bighorn sheep and Wapiti : Bighorn sheep and Wapiti Coyote, pronghorn and grizzly bear : Coyote, pronghorn and grizzly bear The end : The end

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