Which outcome occurs when rising magma experiences crustal contamination?

💡 Explanation

Crustal contamination increases silica content, elevating magma viscosity because fractional crystallization occurs as the magma cools. Therefore, more viscous lava results, rather than effusive flows that are less viscous due to low silica and gas contents.

• Which outcome occurs when differential slip exceeds friction limits on strike-slip faults traversing sedimentary strata?
• What outcome encourages overwash fan expansion on barrier islands?
• Which outcome occurs when increased wave energy impacts fragile coastal cliffs?
• Which volcanic phenomenon develops when viscous lava accumulates rapidly over a vent on steep terrain?
• Which process dictates cave passage alignment along joints?
• Which consequence results when longshore drift transports large volumes of sand over a naturally occurring submerged contour?