This website uses cookies to ensure you have the best experience. Learn more

Volcanism Essay

857 words - 4 pages

VOLCANISM
=is the term which covers all kinds of volcanic activities., it also includes the process that gives rise to magma and causes its movements in the earth.
= It also covers expulsion of gases, lava, and solid materials from the opening in the crust.
VOLCANO
=Is a vent, hill, or mountain from which molten or hot rock and gaseous materials are ejected
=In our country we have more than 200 volcanoes they are distributed in five volcanic belt intimately related to subduction or convergent process
MAGMA
=The term magma comes from the Greek word that means “kneaded mixture” like a dough or paste.
=Its geologic application refers to ant hot mobile materials ...view middle of the document...

Distribution of volcanoes
CIRCUM-PACIFIC BELT = it is also called the ring of fire. The Cascade range of volcanoes makes up a small segment of this belt. Continuing America and on the west coast of the South America and Antarctica. Turning north again, the western portion of the Pacific belt include volcanoes in Indonesia, the Philippines and Japan.
MEDITERRANEAN BELT= stretches across the Mediterranean eastward though Asia Minor and Iran to Baluchistan.

Philippine volcanoes
=The Philippines Archipelago has more than 200 volcanoes distributed in five volcanic belt intimately related to seductions/convergent processes
Mayon volcano
=Lies at the eastern portion of Albay about 300 km southeast of Manila and s well-known for its beauty and near perfect cone.
=One of the tourist attractions of the country.
=Reaches up to around 2,462 m above sea level and covers an area of 250 sq. km.
=Its base circumference is 62.8 km.
=Classified as a stratovolcano or composite one.
=Four major types of volcanic activity: airfall deposition, pyroclastic flows, rain-triggered debris flows, and lava flows.
=February 1, 1814 most violent and devastating outburst occurred at the town of Camalig, =Cagsawa, and Budiao were severely damaged, half of Guinobatan was ruined and least 1,200 people.

Taal volcano
=One of the world’s lowest volcanoes
=Is an island located near the center of Taal Lake in Batangas.
=Its highest point, 311 km above sea level, is on the eastern rim of the main crater.
=Covering an area of 23 sq. km.
=This volcano is surrounded by a fresh body of water.
=About two...

Other Papers Like Volcanism

Billyas Paper

1766 words - 8 pages crust and continental crust is based on their modes of formation. Oceanic crust is formed at sea-floor spreading centers, and continental crust is formed through arc volcanism and accretion of terranes through tectonic processes, though some of these terranes may contain ophiolite sequences, which are pieces of oceanic crust considered to be part of the continent when they exit the standard cycle of formation and spreading centers and subduction

Chile Marketing Plan Essay

1853 words - 8 pages . Border Countries: Argentina 5,308 km, Bolivia 860 km, Peru 171 km Notes: * the longest north-south trending country in the world. * Atacama Desert - the driest desert in the world - spreads across the northern part of the country. * The crater lake of Ojos del Salado is the world's highest lake (at 6,390 m). Natural Advantages: Natural Disadvantages: Severe earthquakes; Active volcanism; Tsunamis * Volcanism - significant

What Affects the Earth's Climate or ... Doomsday 2012 Is True?

905 words - 4 pages across the globe. Orbital variations Slight variations (100s of miles) in Earth's orbit lead to changes in the seasonal distribution of sunlight reaching the Earth's surface and how it is distributed across the planet. Types of orbital variations (changes in the tilt angle of Earth's axis of rotation, and precession of Earth's axis), have a large impact on climate. Volcanism Volcanic eruptions, geysers, and hot springs, are examples of

Volcanoes

886 words - 4 pages known for geysers (jets of hot water/steam) in Wyoming, Montana, and Idaho (USA). A gorgeous National Park to visit. 3) Olympus Mons on Mars. All of these volcanoes have similarities and differences. As with any analysis of volcanism, it generally comes down to crustal chemistry and the sources of the magma that erupts. Compare the volcanoes using these questions. Perhaps make up a table... a) How did these volcanoes form? Plate tectonics

Canada vs. France

955 words - 4 pages storms, drought, and fires for Frances, and continuous permafrost, cyclonic storms, and volcanism for Canada. * France and Canada also have similar current environmental issues; forest damage from acid rain, air pollution, vehicle emissions, and water pollution from urban wastes, and agricultural runoff. PEOPLE * Both countries comprise of several ethnic groups and share French as an Official language. * Although English is also

If Current Carbon Dioxide Emission Trends Continue, Shells of Marine Organisms Will Start Dissolving in Some Parts of the Ocean Sometime Around Mid-Century

1246 words - 5 pages widespread increases in volcanism which contributed huge amounts of greenhouse gases to the atmosphere. However, this was only twice the amount of the baseline natural output - and it was small enough for the earth to recover through the natural uptake of carbon, through weathering and deposition of carbonate shells. The ocean prevented our planet from producing a runaway greenhouse effect. In stark contrast, anthropological actions have

Deep Sea Drilling

1122 words - 5 pages rising plume of mantle material is located beneath the island of Hawaii as the ascending mantle plume enters the low pressure environment at the base line of the lithosphere melting occurs. The surface manifestation of this activity is a hot spot. Hot spots are areas of volcanism high heat flow and crustal uplifting that are few hundred kilometers across the chains of volcanic structures known as hot spot tracks trace the direction of plate motion

The Geology of the Kilauea Volcano (Hawaii)

2744 words - 11 pages into the atmosphere and pouring out red-hot molten lava in fountains and streams.” Mount Kilauea is one of the world’s largest active volcanoes, yet its effusive eruptions generally pose little threat to residents of Hawaii (Cook, 1982). It is located in the Hawaiian Islands of the United States of America, precisely 19.421° N and 155.287° W (Global Volcanism Program, 2009). Its low, broad shape resembles a warrior`s shield (NASA, 2009

Study Of A 3rd World Country, Ethiopia

2681 words - 11 pages PHYSICAL:Relief: Ethiopia consists mainly of Desert and Mountains. Many valleys and plateau's also can be found in the country. Due to these landform types the percentage of farm land is approximately 5.7% of the total amount of land in Ethiopia. The amount of arable land is 10% of the 5.7% total. Ethiopia has an area of 1 221 900 sq. km. Ethiopia does not receive any problems such as volcanism, tidal waves, etc., but it does receive great winds

Book Report

2605 words - 11 pages radioactive decay and this source is strong enough to prevent shrinking and to drive tectonic processes. The chapter further remarks on the structures and processes of the movement of rocks using the concepts of continental drift, hot spot, and plates. (Chapter 2, P.61) After all the fundamental information then comes to the influences of tectonic processes include Volcanism, Earthquakes, Tsunamis, Living in rifts and Living on small islands. The

Physical

2036 words - 9 pages impact due to the uncharacteristic low viscous nature of the lava, despite the volcanism being a result of subduction activity. It was this feature which caused the 1991 eruption to last for 2 years as the lava was able to travel a large distance threatening a considerable population on Etnas slopes and the town of Zafferana. Magnitude is another factor regarding the impact of volcanic events, the eruption of Mt. St. Helens on May 18th 1980 was

Related Essays

We Want More Essay

1549 words - 7 pages future scientific study. Several hypotheses will be considered in the following readings: ▪ Continental Drift ▪ Asteroid Impact ▪ Volcanism ▪ Mammal Competition Hypothesis: Continental Drift It is difficult to imagine a process more slow than continental drift. But some scientists say that, slow or not, this moving of the world’s continents was a disaster for dinosaurs. As continents moved

Nv5 Development Essay

590 words - 3 pages the geologically recent Himalaya mobile belt forms its northern margin. North America and South America are separate continents, the connecting isthmus being largely the result of volcanism from relatively recent seduction tectonics. North American continental rocks extend to Greenland (a portion of the Canadian Shield), and in terms of plate boundaries, the North American plate includes the easternmost portion of the Asian land mass. Geologists do

Volcanic Materials And Health Concerns Essay

3445 words - 14 pages the main theory currently used by most Earth Scientists to describe motion within the outer-most layer of the sold Earth, which is also known as the lithosphere. It is this movement that induces friction that causes earthquakes and volcanic eruptions. Volcanism is associated with two of the plate boundary types, divergent and convergent margins. Volcanoes are formed when two tectonic plates meet; the heavier plate slides underneath the light plate

Volcanoes Essay

1592 words - 7 pages not created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the Earth's crust (called "non-hotspot intraplate volcanism"), such as in the African Rift Valley, the Wells Gray-Clearwater volcanic field and the Rio Grande Rift in North America and the European Rhine Graben with its Eifel volcanoes. Volcanoes can be caused by mantle plumes. These so-called hotspots, for example at