StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Stratovolcano the Composite Cones - Essay Example

Comments (0) Cite this document
Summary
This paper "Stratovolcano – the Composite Cones" focuses on strato-volcanoes that are characterised by periodic explosive eruptions and quiet eruptions, steep upper slopes, gentle lower slopes, concave shape upwards and a small summit crater, a collapsed crater is called a caldera…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.4% of users find it useful
Stratovolcano the Composite Cones
Read TextPreview

Extract of sample "Stratovolcano the Composite Cones"

Stratovolcano – the Composite Cones
A volcano is defined as a hole in the earth’s crust that allows molten rock, steam and gases discharge. On the other hand, a stratovolcano that is also referred to as the composite cones, are tall conical shaped volcano that is built up by a single of strata that is composed of hardened pumice, volcanic ash, tephra and lava. Start-volcanoes are characterised by periodic explosive eruptions and quit eruptions, steep upper slopes, gentle lower slopes, concave shape upwards and a small summit crater, a collapsed crater is called a caldera.
Startovolcanoes are common at subduction zones forming a chain of volcanic features along plate tectonic boundaries where the oceanic crust is drawn under continental crust. The magma that is responsible for stratovolcanoes formation rises when water that is trapped both in the porous basalt rock and in hydrated minerals of the upper oceanic crust layer. It is then released into the mantle rock of the asthenosphere of earth’s crust that is above the sinking oceanic slab. After the occurrence of dewatering at high pressures and temperatures for each mineral, the plate descends to greater depths. The released water from this rock then lowers the melting point by cooling the temperatures of the overlying mantle rock. This in turn makes the rock to undergo partial melting and then rises due to its lighter density relative as compared to the surrounding mantle rock and the pools that form temporarily at the base of the lithosphere. The magma then rises thought the earth’s crust, carrying silica-rich crustal rock leading to a final intermediate composition. On reaching near the top surface, it then forms a pool in the magma chamber within the volcano, due to low pressure, water and other compounds such as chlorine sulphur and carbon dioxide dissolve in the magma to escape from the solution. Once a critical large volume of magma and gases accumulates the rock that acts as an obstacle is then overcame leading to a sudden explosive eruption (Biley ).
Stratovolcanoes are rated as the most hazards to civilians as they cause large numbers of death when they occur. Many deaths are caused by mud and pyroclastic flow that fast-moving mixture of hot volcanic debris ash and gases that can travel at high speed of about 160km/h. The eruption of Mt Pel’ee on Martinique Island in Caribbean, El Chi chon volcano in Mexico which killed thousands of lives, the Pinatubo volcano that erupted in 1991 in manila and the Unzen volcano on the island of Kyushu. Stratovolcanoes mainly form at the convergent plate margins usually where one plate descends beneath an adjacent denser plate at the site of a subduction zone. Connectively, most of these subduction-related stratovolcanoes can be found in many places though more in the rim of the pacific ocean the region commonly known as the ring of fire. That includes the stratovolcanoes forming the Aleutian island in Alaska, Cascade Mountains in the pacific and Andes Mountains in South America. In the world, most of the tallest mountains are as a result of stratovolcanic activity, however, most pronounced are examples of Mt. Mayon in Philippines, Mt Agua in Guatemala, Mt. Fuji in Japan, Mt St Helens (Biley N.P).
Work cited
Biley, A. startovolcano: formation and hazards. 2011, N.P. web, Retrieved from < http://www.geonami.com/stratovolcano-formation-hazards/ >,on 2014-05-08
Geological Survey of Canada. Catalogue of Canadian Volcanoes: Garibaldi volcanic belt: Garibaldi Lake volcanic field. 2009. N.P, Web. Retrieved from < http://wayback.archive.org/web/20090626082839/http://gsc.nrcan.gc.ca/volcanoes/cat/feature_garibaldi_e.php > on 2014-05-08 Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Stratovolcano the Composite Cones Essay Example | Topics and Well Written Essays - 500 words”, n.d.)
Retrieved de https://studentshare.org/geography/1644985-what-is-a-strato-volcano-describe-its-characteristic-shape-and-name-a-geographic-example-detail-see-order-instructions
(Stratovolcano the Composite Cones Essay Example | Topics and Well Written Essays - 500 Words)
https://studentshare.org/geography/1644985-what-is-a-strato-volcano-describe-its-characteristic-shape-and-name-a-geographic-example-detail-see-order-instructions.
“Stratovolcano the Composite Cones Essay Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/geography/1644985-what-is-a-strato-volcano-describe-its-characteristic-shape-and-name-a-geographic-example-detail-see-order-instructions.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Stratovolcano the Composite Cones

Open Topic under Composite Materials

...? COMPOSITE MATERIALS FOR WIND TURBINE BLADES 28 April 28 April Composite Materials for Wind Turbine Blades An increasing demand in the world energy requirements has called for an optimized sustainable energy solution. This has shifted the focus to short timed energy resources like wind energy. To make effect utilization of wind energy, wind turbines have been created (Brondsted, Lilholt, and Lystrup 505). It mainly includes systems that facilitate the movement of turbine in the wind direction, conversion of mechanical movement into electrical energy and related systems of starting, braking and controlling the turbine. As described in Wikipedia, there are two main kinds of wind turbines one is Horizontal Axis Wind Turbine and second...
16 Pages(4000 words)Term Paper

Maths investigation Mathimatical modeling volumes of cones

In other words, the central angle of the original sector remains same for obtaining the maximum volume of the cone. The actual maximum value of the volume, of course, depends on the radius of the original circle.
...
3 Pages(750 words)Essay

Composite Role Rating

...Composite Role Rating The faculty evaluation process is routinely adopted by universities for evaluating performance and improving the teaching effectiveness of its faculty members. A successful evaluation system commonly involves obtaining valid and reliable inputs from students, peers and department chair. However, according to Arreola (2007), the evaluation process is necessarily subjective but, for consistency of conclusions, it needs to be made objective through the strategy of controlled subjectivity. The evaluation procedure essentially consists of a numerical rating provided by the sources in several pre-defined areas (roles and components) of teacher performance. Measurement tools viz., rating forms, observational...
2 Pages(500 words)Essay

Types of composite materials

... Types of composite materials Introduction Composite materials refer to materials or naturally occurring materials that constitute two or more integral materials which have dissimilar physical or chemical properties and remain detached and separate in the finished assembly (Attaf 4). The constituent materials are divided into two; the matrix and the reinforcement. There should be at least one portion of each in order to make a composite material. The matrix surrounds the reinforcement material in the composite; therefore acting as a supporting agent. The reinforcement material on the other hand gives the finished structure superior mechanical and physical properties. This research paper will particularly look at mud bricks, laminate...
6 Pages(1500 words)Research Paper

Composite Cycle Frame Manufacturing Methods

...Composite Cycle Frame Manufacturing Methods Composite Cycle Frame Manufacturing Methods Introduction This is a method that offers the most durable materials for manufacturing bicycles. The name composite in this case shows that it has several materials. The materials that make up the bicycles are resin and carbon fibres. The carbon fibres are man-made and they produce quality bicycles unlike isotropic materials. There are mainly two methods in the manufacturing process of bicycles under this technique. The first method is the Resin transfer. It is used in lugged construction in which tubes made of carbon are bonded. The bonding is done to internal lugs or external then held together using glue. The second method is the closed mould...
9 Pages(2250 words)Research Paper

Carbon-Fibre Composite Materials

...Carbon-Fibre Composite Materials Advantages of CFRP Automobiles are machines utilized for locomotion. Externally, they are seen as a single homogenous machine. Internally, they are actually complex combinations of both small and big parts. The multifarious combinations of nitty-gritty parts contribute to the total functionality of automobile. The various parts of automobile are made up various materials where their strength depends upon the raw materials used to produce them. The myriad of interconnections of the various parts, whether small or large, contributes to the overall functionality of an automobile. There are different types of automobile. A car is the most common type of automobile comprising largely in the usability...
5 Pages(1250 words)Coursework

Polymer composite materials in automotive industry

...Polymer composite materials in automotive industry The use of polymer composite materials in automotive industry has been part of this industry since 1953. The Carbon fibre composite materials have been in used in applications with low production volumes, because of their shortened lead times and lower investment costs relative to conventional steel fabrication. The important drivers of the growth of polymer composites have been the reduced weight and parts consolidation opportunities the material offers, as well as design flexibility, corrosion resistance, material anisotropy, and mechanical properties. (Bunsell, 1998) One of the advantages of carbon fibre composite materials that makes them dominant for use in the automotive industry...
5 Pages(1250 words)Coursework

The Inseparability of Markets and Regulations - Georgia Composite Medical Board

...Inseparability of Markets and Regulations The Georgia Composite Medical Board (GCMB) offers licenses to acupuncturists, physicians’ assistants, physicians, Auricular detoxification experts, and Respiratory care specialists within Georgia. The board investigates medical professionals who dishonor the Medical Practice Act or other related regulations and takes corrective actions (GCMD, 2014). The board certifies that only professionals who have fulfilled the protocols stipulated by the state participate in the provision of medical services. It formulates and implements policies stipulating how medical practitioners should act in different conditions and/or situation. As such, it protects healthcare consumers by ensuring that the services...
1 Pages(250 words)Essay

Antibacterial and biomedical applications of gold nanoparticles and graphene composite

... six-atom carbon rings. Graphene oxide (GO) is used to in imaging and delivery of drugs (p.365). Georgakilas et al. says that the existences of carbon nano-structures in graphene enables it to form organic polimers which are very important in the formation of polimer composites which are important in biomedical application (p.4). also supports Yang et al. on the issue (n.d, p.1-59) T Yang et al. (2013), continue to say that the properties of graphene is also useful making of biological, pathogenic and pharmacological processes that make it necessary delivering therapeutic drugs since its used for the detection of specific proteins through the “sand witch ” immunoassay which is useful in the binding of proteins and secondary antibody...
4 Pages(1000 words)Essay

Recent Advances in High Performance Fibers for Composite Applications

...Recent Advances in High Performance Fibers for Composite Applications Introduction High-performance fibers were initially manufactured during the sixties with their high price restraining their use to good military upper atmosphere and space system. The price of these fibers were placed as high as $400 to $500 and findings from untimely military composite research and development agendas that could be currently viewed in systems fielded by every military service (Gu 69). For instance, an extra 350 pieces of the F-22 raptor, making up 25% of the structural mass are non-carbon composites. Additionally, the advancement joint strike fighter will be amid 25 and 30% composite by mass (Edie 163). The United States army currently applies carbon...
11 Pages(2750 words)Research Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic Stratovolcano the Composite Cones for FREE!

Contact Us