Volcanoes, Active essays

Volcanoes, Active essays Throughout the world, there are various volcanoes that erupt daily. Scientists called vulcanologists study these volcanoes rigorously. These scientists, from either the United States Geological Survey or other foreign groups, study and observe these volcanoes to ensure that people in close proximity to these natural disasters are not put in any immediate danger. One active volcano is named Shiveluch. This volcano lies on the Kamchatka Peninsula, and is one of Russias largest volcanoes. Along with being one of Russias largest volcanoes, it is also one of the Holocenes (the earliest epoch in the Cenozoic era) most active volcanoes accredited with over 60 large eruptions. Its most recent major eruption was recorded back in 1997. Since then it has emitted several major and minor plumes of smoke, ash, and other volcanic debris. Such expulsions are deemed normal and as such the volcano retains the level-of-concern color code of yellow. Shiveluch is an andesitic volcano. Its mostly made up of plagioclase feldspar, clinopyroxene or orthopyroxene, and a small amount of hornblende. While these are the primary minerals, Andesite lava is also known to contain olivine. The andesitic magma that is usually expelled from stratovolcanoes emerges as thick lava flows that grow to be very large in length. It can also produce massive explosive bursts that turn into pyroclastic flows and surges and enormous eruption columns. The erupting point of Andesite lava tends to fluctuate anywhere from 900 and 1100 degrees Celsius. Shiveluch is a stratovolcano that stands 3,283 meters above sea level. While this volcano has never taken any human lives in the past, there is a small town that sits at the base of the volcano a mere 50 km away. Since this volcano is located along many major aircraft routes across eastern Russia, it is watched and monitored very closely by the Civil Defense Department of Russia. This...