the hot lava fragments and clouds of dust erupting from Vulcano came from Vulcan’s forge as he beat out thunderbolts for Jupiter‚ king of the gods‚ and weapons for Mars‚ the god of war. 2. What is the difference between magma and lava? •Molten rock below the surface of the Earth that rises in volcanic vents is known as magma‚ but after it erupts from a volcano it is called lava 3. What are the main types of volcanoes? •cinder cones‚ composite volcanoes‚ shield volcanoes‚ and lava domes.
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travel down slope from a volcano. The Mount St. Helens pyroclastic flow spread as far as five miles north of the crater. The hot lava flows and suffocating ash falls destroying plant and animal life. The eruptions are over‚ but consequences go on. What happens to the surrounding environment after such an eruption? The Earth repairs itself from the destructive effects of the lava‚ gases and ash spewed by the eruption of Mount St. Helens. It is the short-term hazards posed by volcanoes that are balanced
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there’s no lava supply in the magma chamber beneath the volcano. There are approximately 1‚500 active volcanoes in the world today and 75 percent of them are located in the Pacific Ring of Fire. On average‚ 50-70 volcanoes erupt every year. Nyamuragira – D.R. Congo -Africa’s most active volcano‚ Mount Nyiragongo is located in Virunga National Park in the Democratic Republic of Congo. The main crater is 2km wide and‚ since 1882‚ it has erupted at least 34 times. Nyiragongo’s emits more lava than almost
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erupted in February‚ then continued on March 16th on which was reported caused two small lava flows from its new crater‚ then continued into April‚ causing frequent explosions to eject small plumes of fire. The last eruption we’ll talk about was in 1992. This explosion’s strongest activity point occurred on November 12‚ when Krakatoa started "shooting" lava-bombs out of its crater onto the north coast and some lava flowed into the sea. While we know volcanoes erupt‚ how do they erupt? After some
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build up very high resulting in an explosion. When magma reaches earth’s surface it is called lava. It may pour out in gentle streams called lava flows or erupt violently into the air. Rocks ripped loose from the inside of the volcano or torn apart by the gas may be shot into the air with the lava. These rocks are blown out of a volcano and are called volcanic bombs. Along with these bombs dust‚ ash‚ lava and cinder are released into the air. Volcanic activity is classified by how often a volcano
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spewing more the 1000 km3 of ash‚ pumice‚ or lava when it erupts. -according to the US geological survey‚ Volcano eruptions are measured using a unit called the VEI. To be exact‚ the VEI is used to represent the explosiveness‚ amount of material ejected‚ and height of column from a volcano. To be a super volcano‚ a volcano must have a VEI of 8. A volcano with this much power doesn’t usually look like an average volcano. Instead of a cone shape‚ the lava in a super volcano resides underneath the earth
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ash and half of your house is destroyed by lava. Many citizens living near Mount Fuji could have lived in constant fear hoping that Mount Fuji wouldn’t erupt. Its last eruption was December 16‚ 1707- January 1‚ 1708 still an active volcano today. Mount fuji was present about 10‚000 years ago. Mount Fuji is a symbol of Japan and it’s a inspirational modern art. Mount Fuji has made an impact on people and wildlife. This volcano is was formed from repeated lava. Mount Fuji is an active stratovolcano made
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describe how volcanoes affect our environment. They both positively and negatively impact our world. I lived on the big island of Hawaii for a while‚ and got to experience firsthand the power of the volcanoes. I walked through lava tubes‚ dormant craters‚ and even watched red hot lava slither down the side of Kilauea and into the Pacific Ocean. They have fascinated me ever since. What is a volcano? “Volcanoes are awesome manifestations of the fiery power contained deep within the Earth.” (National Geographic)
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eye o Texture: small crsytals (can’t see) dull o Cooling: cooled quickly; Extrusive • Phaneritic: all materials are visible to the naked eye o Texture: large crystals; shiny‚ sparkly o Cooling: cooled slowly; Intrusive Know the texture‚ magma/lava composition‚ rock forming
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hardens. After doing this for a long time‚ the hardened lava forms an island‚ like the Hawaiian islands (Volcanoes Online).<br><br>The Kilauea volcano is one of the most active volcanoes on earth. It’s current eruption started in January 1983‚ and there is no signs that the current eruption is slowing or will come to an end anytime soon. The U.S. Geological Observatory monitors the daily activities of the volcano‚ for example-movement of lava flows‚ earthquakes‚ surface deformation‚ and gas production
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