What are the characteristics of mafic magma?

Crystallizes at a Very hot temperature (900-1200°C)

contains magnesium and iron rich minerals

It produces flowing volcanoes: Lava flows

What type of volcanoes does mafic magma create?

Shield and cinder cone volcanoes

it crystallizes at a temperature that is less than 850°C

It contains felspar and silica rich minerals like quartz

Its volatile gasses may reach up to 15%

water and carbon dioxide are its main volatile gasses

Stratovolcanoes and or composite cone

shield volcano and cinder cone volcanoes

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1What are the two types of magma?
1. AFelsic and mafic magma
2. BBasic and acidic magma
2What are the characteristics of mafic magma?
1. ACrystallizes at a Very hot temperature (900-1200°C)
2. BIs very fluid
3. CHas low silica content (~50%)
4. Dcontains magnesium and iron rich minerals
5. Eits volatiles gases are low
6. FIt produces flowing volcanoes: Lava flows
7. GAll of the Above
3Which is more dense, mafic magma or felsic magma
1. AFelsic
2. BMafic
4What is an example of mafic magma?
1. AOceanic crust
2. BContinental crust
5What type of volcanoes does mafic magma create?
1. AShield and cinder cone volcanoes
2. Bcalderas and shield volcanoes
6
What are the characteristics of felsic magma?
1. Ait crystallizes at a temperature that is less than 850°C
2. BIt is highly viscous
3. CIt has a high silica content
4. DIt contains felspar and silica rich minerals like quartz
5. EIts volatile gasses may reach up to 15%
6. Fwater and carbon dioxide are its main volatile gasses
7. GAll of the Above
7Which is less dense, felsic magma or mafic magma?
1. AMafic magma
2. Bfelsic magma
8What is an example of felsic magma?
1. Aoceanic crust
2. Bcontinental crust
9What type of volcanoes does felsic magma create?
1. AStratovolcanoes and or composite cone
2. Bshield volcano and cinder cone volcanoes

Descripción: Test sobre IGNEOUS ROCKS, creado por Chika Abigail el 09/01/2020.
Autor: Chika Abigail
Idioma: English
Visitas: 39
Etiquetas: types of magma extrusive and intrusive rocks volcanic and plutonic rocks mafic magma felsic magma volcanoes pahoehoe aa textures phaneritic glassy basalt granite cinder cone caldera
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