MOUNT PINATUBO CASE STUDY BITESIZE

It was thought for many years that the haze effect resulted from ash particles in the upper atmosphere blocking out solar radiation. Sulfur combines with water vapour in the stratosphere to form dense clouds of tiny sulfuric acid droplets. Composite volcanoes Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. Regione Tutte le Regioni. Composite volcanoes have the following characteristics:

Click here for larger version. Read these excellent case study notes. It is located at the plate boundary between to the Eurasian and Philippine Plate. Evacuation camps built for refugees. Explosion at Clark Air Base. Volcanoes S-cool, the revision website However it is the lava that mainly helps to shape the volcano. For months after the eruption the world experienced unseasonably cool weather and brilliant sunsets.

mount pinatubo case study bitesize

Read these excellent case study notes. Relevance of Crystal Transfer to Magma Mixing: Long and short term aid organized especially from the Red Cross and the United States.

Powerful volcanic eruptions – GCSE Geography – BBC Bitesize

Mt Pinatubo Crater in Philippines. Krakatoa, Indonesia – erupted in – the second largest eruption in history. Equity Blog — Geography Case Study: Composite volcanoes have the following characteristics: PaperCoach can help you with all your papers, so check it out right now!

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Shield volcanoes are found on constructive plate marginswhere two plates move away from one another. However, of greater significance is the haze effect – caused by ash and gases released during an eruption, which results in global cooling. Volcanic ash is blown in all directions over hundreds of KMs, smothering fields and buildings.

What they could have done. Sulfur dioxide reacted with water to form a hazy layer of aerosol particles made up of sulfuric acid droplets.

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Over the course of the next two years, strong stratospheric winds spread these aerosol particles pinatuboo the globe. Image courtesy of Wikipedia.

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mount pinatubo case study bitesize

Composite volcanoes happen where the lava is acidic. Fantastic site on Mount Pinatubo – look at pages 2 and 3. For months after the eruption the world experienced unseasonably cool weather and brilliant sunsets.

Mauna Loa is a shield volcano.

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Over the course of several eruptions a massive 10 cubic km of material was ejected, making it the second biggest eruption of the 20th century. Longer periods between eruptions. USA air force helicopters helped. Warning sign like gas and steam looked for. Fast flowing volcanic mudflows lahars cause sever river bank erosion, undercut bridges etc.

Powerful volcanic eruptions

Types of volcano There are two main types of volcano – composite and shield. There are three main volcanic cones: Mauna Loa is a shield volcano, but was formed over a hot spotrather than at a constructive plate margin, like other volcanoes.

mount pinatubo case study bitesize

The United States Geological Service helped to predict the disaster. Composite pintaubo Composite volcanoes are found on destructive plate marginswhere the oceanic crust sinks beneath the continental crust. This is a the most common type of volcano, also known as composite volcanoes. Volcanic eruptions can intensify global warming by adding CO 2 to the atmosphere.

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