Felsic lavas would tend to be slow moving, thick, and move only short distances.
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Q3: Melting of crustal rocks produces silica-rich magmas.
Q4: Mafic magma is silica poor and may
Q5: Magma chambers generally exist at depths of
Q6: Viscosity of a magma provides an indication
Q7: Mafic magma has lower viscosity.
Q9: The magmas formed beneath spreading ridges are
Q10: Magma composition may change by crystal settling.
Q11: Partial melting explains the origin and composition
Q12: Magmas formed at subduction zones are mostly
Q13: Phaneritic textures indicate that the rock formed
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