Which THREE factors decrease the melting temperature of a rock?
Geology Quiz: Part 5

Quiz
•
Science
•
University
•
Hard
Rala, D.
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Increase in water content
Increase in pressure
Increase in mineral content
Increase in temperature
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do rocks typically undergo partial melting (at constant temperature and pressure)?
Due to increase in pressure
Due to decrease in water content
Due to increase in temperature
Due to decrease in mineral content
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can we initiate the melting of a rock buried in the Earth’s crust?
Increase in temperature
Increase in water content
Increase in mineral content
Increase in pressure
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where do basalt rocks melt more easily and why?
At the Earth's mantle due to high temperature
At the Earth's crust due to low temperature
At the Earth's core due to high pressure
At the Earth's surface due to low pressure
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do we mean by ‘magmatic differentiation’?
The process of rocks turning into magma
The process of magma solidifying into rocks
The process of magma cooling into rocks
The process of magma composition changing over time
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the approximate temperature of crystallization of silicate minerals out of a magma?
100-200°C
500-700°C
800-1000°C
1100-1200°C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of magmas/rocks would be formed by progressive magmatic differentiation of a starting basaltic magma?
Granitic
Andesitic
Basaltic
Rhyolitic
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