This basaltic magma then moved up the dike from the basaltic chamber 20 km deep into the andesitic and dacitic magma chambers creating magma mixing and rapid vesiculation. The magma then migrated from the 8 km deep chambers to the surface. The mixing can be found in the chemically zoned tephra deposits that include banded pumice of andesitic and dacitic composition [Yoshimoto, 2004]. Historical reports show that seismic activity started on the south flank of Fuji on 3 December 1707, 36 days after the Hoei earthquake, suggesting that magma migration started on or before 3 December 1707 and continued until the eruption on 16 December 1707 [Tsuya, 1955]. The most
This type of eruption is driven by thermal contraction where the temperature difference between the two results in violent water-lava interactions. The eruption usually has bursts of tremors, geothermal activity, mushroom cloud formation, and a large amount of ash. These tremors can result in earthquakes and geothermal activity refers to the melting of the ice. When the volcano erupts, a mushroom cloud can be formed from 30 km wide and 15 km high. In addition, ash is formed by the magma and glacial ice.
We start in North America.North America is 9,540,198 square miles! We will fly over the Grand Canyon.The Grand Canyon is found in the U.S., in state of Arizona many people consider it to be one of the seven wonders of the natural world.The Grand Canyon is 277 miles in length.At its widest point the Grand Canyon stretches 18 miles across! Then over the Atlantic Ocean! The Atlantic Ocean borders on North America, South America, Europe, and Africa. It is the world 's second largest ocean, while the Pacific Ocean is the largest.
Flooding Disaster Flooding - arrive in overwhelming amounts or quantities or large amounts of water. We are going to talk about how flooding destroy people 's lives and homes around the world. One of the country’s worst flooding disasters occurred February 26, 1972, on Buffalo Creek in Logan County in West Virginia. It was about 8.00a.m a coil waste dam collapsed on the Middle Fork of Buffalo Creek releasing 132 millions gallons of water into the city and destroying everything. Next were are going to talk about another bad flood that is the Mississippi river flood of 1927, on September 1 water poured over a dozen streams and flooded towns of Carroll, Iowa to Peoria and Illinois three hundred miles and fifty miles apart.
How glaciers affect the Rocky Mountains Intro The Rocky Mountains are located in the South West Canada and the North West America all through to central New Mexico. The highest peak of the Rocky Mountains is 14,255 ft. above sea level (encyclopedia). A brief history of the rocky mountain is that the way they were formed during the Mesozoic era when an earthquake occurred involving the plate from the ocean and the plate from the continental running into each other. The Oceanic plate is pushed under the continental plate causing volcanos and the land to be pushed inward causing the land to rise forming mountains (United States). Glacier are made from snow that is then compressed over the years that it turns into ice, they can be formed on both
Viruses are the largest single inhabitant of the ocean. In every milliliter of water, there are more than 1 million virus molecules. To give you an idea of the of the sheer amount of virus molecules that live on the earth here is an example. If every single virus molecule was laid in a single file line, they would reach 2,000 times the length of the milky way galaxy. The milky way is 1,000,000,000,000,000,000 km acroos and a single virus molecule takes
3 The Salton Sea is the largest lake in California. It covers approximately 343 square miles and has a maximum depth of only 43 feet. The Salton Sea is a salt water lake that was created by accident, when the salt flat known as the Salton Sink was flooded. In the year 1905, heavy rainfall caused several canals off of the Colorado River to swell, which caused water to flood into the Salton Sink, creating the Salton Sea. For a time, the Salton Sea was a popular tourist attraction with many resort towns around the massive lake.
Day after day, crowds will gather to watch the giant geyser erupt. During eruptions, Old Faithful can reach anywhere from 90 to 184 feet. This famous geyser, which is known world-wide, is not the largest geyser in the park. However, Old Faithful is the most studied geyser in Yellowstone and is the most predictable. Climate at the nation’s first National Park is 35 degrees fahrenheit during the summer night and -40 degrees fahrenheit during the winter night.
Underneath the earth are plate tectonics, and when the earth drifts apart the plate tectonics move and cause many things to happen. Many of our landforms were created because of this. Three examples are volcanos, earthquakes, and mountains. To begin, volcanos are a great example of landforms being created by the movement of plate tectonics. When the plate tectonics move, it causes pressure inside the earth that creates volcanoes.