20540253
Description
Quiz by Chika Abigail, updated more than 1 year ago
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Created by Chika Abigail
over 4 years ago
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Question 1
Question
What are the two types of magma?
Answer
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Felsic and mafic magma
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Basic and acidic magma
Question 2
Question
What are the characteristics of mafic magma?
Answer
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Crystallizes at a Very hot temperature (900-1200°C)
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Is very fluid
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Has low silica content (~50%)
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contains magnesium and iron rich minerals
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its volatiles gases are low
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It produces flowing volcanoes: Lava flows
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All of the Above
Question 3
Question
Which is more dense, mafic magma or felsic magma
Answer
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Felsic
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Mafic
Question 4
Question
What is an example of mafic magma?
Answer
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Oceanic crust
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Continental crust
Question 5
Question
What type of volcanoes does mafic magma create?
Answer
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Shield and cinder cone volcanoes
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calderas and shield volcanoes
Question 6
Question
What are the characteristics of felsic magma?
Answer
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it crystallizes at a temperature that is less than 850°C
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It is highly viscous
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It has a high silica content
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It contains felspar and silica rich minerals like quartz
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Its volatile gasses may reach up to 15%
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water and carbon dioxide are its main volatile gasses
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All of the Above
Question 7
Question
Which is less dense, felsic magma or mafic magma?
Answer
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Mafic magma
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felsic magma
Question 8
Question
What is an example of felsic magma?
Answer
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oceanic crust
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continental crust
Question 9
Question
What type of volcanoes does felsic magma create?
Answer
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Stratovolcanoes and or composite cone
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shield volcano and cinder cone volcanoes
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