Which outcome is accelerated within a volcanic dome composed primarily of rhyolite as hydrothermal activity intensifies?

💡 Explanation

Phreatic explosions increase because increased hydrothermal circulation raises pore pressures within the dome, weakening the structure due to increased fluid inclusion; therefore, explosions occur more frequently rather than slow cooling because magma viscosity dominates that process.

• Which geographic effect results from variations in solar insolation related to Earth's orbit around the Sun?
• What ocean dynamics create stronger ocean upwelling along the western coasts of continents around the globe?
• Which mechanism increases sinkhole formation over limestone aquifers?
• Which process dictates cave passage alignment along joints?
• Which risk increases when constructing large impermeable structures upon an alluvial plain?
• Which risk dramatically increases when diverting surface runoff toward karst regions?