magma Flashcards
1
Q
where is magma located?
A
melted mantle rock and oceanic plates
2
Q
where does magma originate?
A
lower crust and upper mantle
3
Q
a mobile layer of partially molten rock with the upper mantle
A
asthenosphere
4
Q
different minerals with different melting points melting at the same time
A
partial melting
5
Q
common gases found in magma
A
water vapor, carbon dioxide, and hydrogen sulfide
6
Q
ability of a substance to resist flow
A
viscosity
7
Q
rocks turn to magma at what degree?
A
800-1200°C
8
Q
the melting of magma that occurs in a decrease of pressure
A
decompression melting
9
Q
water-involved melting that occurs around the subduction zones
A
flux melting
