null
US
Entrar
Registre-se gratuitamente
Registre-se
Detectamos que o JavaScript não está habilitado no teu navegador. Habilite o Javascript para o funcionamento correto do nosso site. Por favor, leia os
Termos e Condições
para mais informações.
Próximo
Copiar e Editar
Você deve estar logado para concluir esta ação!
Inscreva-se gratuitamente
243264
Volcanoes
Descrição
A Mind-Map on Volcanoes!
Sem etiquetas
geography
volcanoes
formation of volcanoes
volcano
junior cert
gcse
junior certificate
physical geography
geography
leaving certificate
Mapa Mental por
1jdjdjd1
, atualizado more than 1 year ago
Mais
Menos
Criado por
1jdjdjd1
aproximadamente 11 anos atrás
6409
67
0
Resumo de Recurso
Volcanoes
Formation of a volcano
1. Hot liquid rock called magma reaches the surface of the ground through a narrow vent in the earth's crust.
2. It erupts violently, blasting lava, ash and boiling mud into the air.
3. This material collects around a vent in a cone shape.
4. Repeated lava flows add to this cone-shaped mass of material.
5. Together the repeated ash and lava layers build up to form a cone-shaped mountain.
Positive effects of volcanoes
1. New land is created for farming and living space, e.g. Iceland.
2. Minerals are created by volcanic activity. Lava soils are rich in minerals. Good for growing crops.
3.Geysers(hot spring) can be formed and help heat glasshouses for production of food. E.g. Iceland.
4. Dormant or extinct volcanoes are major centres of tourism. e.g Vesuvius in Italy.
Negative effects of volcanoes
1. When snow-capped volcanoes erupt, large mud flows are created, which often cover villages and towns.
2. Gases from volcanoes may kill people who live nearby.
3. Ash and lava flows can destroy towns causing death.
4. Giant tidal waves are created by volcanoes at sea. When they reach land they can kill people especially in low-lying places such as deltas.
Types of volcano
Active
Erupting regularly, e.g. Mount Helens in California.
Dormant
Has not erupted in a long time. May erupt again.
Extinct
Has not erupted over thousands of years. Will most probably not erupt again.
Keywords
Magma
Geyser
Vent
ash
Crater
Pacific Ring of Fire
Largest earthquake and volcano zone is called the Pacific Ring of Fire. It lies around the edge of the Pacific Ocean.
Anexos de mídia
VolcanoDiagram (image/jpg)
Quer criar seus próprios
Mapas Mentais
gratuitos
com a GoConqr?
Saiba mais
.
Semelhante
GCSE Geography - Causes of Climate Change
Beth Coiley
Geography Coastal Zones Flashcards
Zakiya Tabassum
Using GoConqr to study geography
Sarah Egan
Characteristics and Climate of a hot desert
Adam Collinge
Favela Bairro Project- Squatter Settlement case study Changing urban environments
a a
Economic migrates in the EU (Poland to UK migration)
a a
Coastal Zone Glossary
Clare Magor
Water World - Hydrological Cyle Key Terms
Nikki Azevedo
Population Growth
Adam Collinge
Water on Land Keywords
Adrian Ridley
GCSE Geography - Fold Mountains - the Alps
Beth Coiley
Explore a Biblioteca