True/False
The primary reason magma forms at subduction zones is that the subducting plate carries a cover of sediments,water,and hydrated minerals down with it,which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt.
Correct Answer:

Verified
Correct Answer:
Verified
Q12: If basaltic lava reaches the sea or
Q13: A scoria cone is likely to form
Q14: Mineral growth in magmas at the
Q15: The formation of a giant continental caldera
Q16: A shield volcano has a great _.<br>A)height
Q18: _ in the Aegean Sea underwent an
Q19: The volcanic explosivity index (VEI)measures size of
Q20: _ eruptions are common first phases in
Q21: The three Vs of volcanology are _.<br>A)viscosity,volatiles,velocity<br>B)viscosity,volatiles,volume<br>C)viscosity,velocity,volume<br>D)volatiles,volume,variability<br>E)volatiles,velocity,variability
Q22: The most peaceful eruptions are _.<br>A)Icelandic type