Mount Vesuvius is one of the most notoriously recognized volcanic eruptions known to man to date. As our text states‚ “this famous volcano erupted in the year 79 AD‚ ejecting a huge cauliflower-shaped cloud of ash and debris that rapidly settled to the Earth (Strahler 436).” After doing some outside research on this magnificent volcanic landform‚ I found quite a few things: “Mount Vesuvius is located in Italy‚ near the areas of the Tyrrhenian Sea and the capital of Italy. The volcano also buried
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heating of the rock‚ and the molten rock’s surface tension. What the scientist found was how some volcanoes function on the inside. In past years‚ volcanologists believed that flowing lava sinks back down and settles after an eruption‚ pressing on the magma below and crushing all of the bubbles‚ which makes pressure build up under the compacted lava. This leaves the lava sitting there...Until it explodes. Pow! This hints at why some volcanoes will go through cycles of flowing and explosive eruptions.
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Volcanoes occur when two tectonic plates collide or‚ when there is a hot spot in the crust and constructive forces build a volcano. There are two types of volcanic flows pyroclastic and mud flows. Pyroclastic volcanoes occur when the amount of magma in the chamber collects and the pressure increases causing the volcano to erupt. Mud flows are kind of like pyroclastic accept the lava in the chamber doesn’t collect and cause an eruption it just flows out the top of the volcano. Mount Etna
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Big Bend National Park Report 1. What is the depositional nature of the rocks in the study area and how does their lithologic compositions and sedimentary structures record changing water depths‚ environments of deposition‚ and paleogeography? Big bend national park has complex rocks that are subsided in two seas hundreds of millions of years ago. Fossil data from the mid to Upper Cretaceous period predicts the sequence of rock strata in Big Bend National Park to be from bottom to top: limestone
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schists are at the bottom of the canyon in the Inner Gorge. The inner gorge has a significant amount of metamorphic rocks. The gneiss is a metamorphism of an igneous rock but can be from granites or diorites. The gneiss in the Grand Canyon formed from magma rose that had resulted from the collision of plates and spread into the Granite Gorge and cooled to form Zoroaster Granite. It then metamorphosed into gneiss. The Elves Chasm is the oldest rock in the Grand Canyon. It may be a part of older continental
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CINDER CONE VOLCANO The cinder cone volcano‚ commonly found in volcanic areas‚ are constructed of rocks and ashes. Gas created from the lava is blown into the air which then “cools and solidifies as small rocks or cinders”. Cinder cone eruptions “take place in basaltic volcanic fields” that immensely effect the human population surrounded by it. Cinder cone eruptions majorly impact the environment by distributing volcanic gases‚ volcanic landslides and blasting tephra. One of the long-term impacts
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Name: Kelcie Jolliffe Date: November 17th‚ 2014 Graded Assignment Lab Report Answer the questions below. When you are finished‚ submit this assignment to your teacher by the due date for full credit. In this laboratory experiment‚ you will write a narrative history of a rock section found in the Grand Canyon. You will describe and explain the events starting with the Vishnu Schist forming and ending with the unconformity above the Redwall Limestone in the Mississippian. Your description should include
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eruption in Montserrat was due to subduction‚ but the Atlantic tectonic plate subducts beneath the Caribbean plate. Mt St Helens went on to erupt in a Plinean style‚ spewing out ash and produce pyroclastic flows -currents of hot gas and ash. The magma burst out causing large pyroclastic flow flattening vegetation and buildings for over 230 square miles (600 km²). There were volcanic Mudflows- Due to collapse of northern side mixed with ice‚ snow and water. These flowed many miles down the Toutle
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Dear Principal‚ I really would like to visit Lava Beds National monument located in northeastern California. It holds many new learning experiences‚ many new sights to see‚ and possibly might change their career. A surreal landscape sculpted by molten earth‚ Lava Beds National Monument contains volcanic tablelands punctuated by cinder cones and spatter cones‚ plus more than 700 caves. These strange features were formed when the outer edges of flowing lava began to cool‚ forming tubes. When
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Mount Saint Helen’s Volcano‚ part of the cascade mount range‚ is associated with the subduction zone of the Juan du Fuca plate into the North American plate‚ as is most of the volcanism in this mount range (USGS Geology & History). The eruption intensity is normally quite explosive but Mt. Saint Hellen’s has experienced the peaceful one on occasion (USGS Geology & History). With frequent eruption every couple hundred years (rough estimate at best)‚ Mt. Saint Helen’s is the most active volcano of
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