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← GeographyWhich process explains the cyclical resurgence of lava domes within volcanic calderas?
A)Magmatic pressure overcoming conduit resistance✓
B)Isostatic rebound after major eruption
C)Increased surface water infiltration rates
D)Tectonic uplift causing magma shifts
💡 Explanation
Recurring lava dome formation relates to magmatic pressure increasing until it exceeds the resistance of the volcanic conduit; therefore, magma extrudes to form a dome because pressure overcomes the structural constraint, rather than isostatic, hydrological, or tectonic changes.
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