The highest temperatures and highest SiO2 contents are in basaltic magma,giving it the lowest viscosity and easiest fluid flow.
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Q47: The lowest temperatures and highest SiO2 contents
Q48: Magma compositions are independent of the amount
Q49: About 80 percent of the magma reaching
Q50: Over 80 percent of Earth's magma extruded
Q51: Basaltic magmas have low contents of SiO2,low
Q53: Magma rising in a subduction zone tends
Q54: Over 90 percent of volcanism is associated
Q55: Basaltic magma has the lowest viscosity,so more
Q56: While there are many hundreds of different
Q57: The primary reason magma forms at subduction
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