Which outcome from a lava dome results when crystallization increases viscosity?

💡 Explanation

Increased crystallization promotes brittle behavior, resulting in unstable dome structures. Block and Ash flow events occur because the increased viscosity enhances fragmentation during gravitational collapse, thereby accelerating pyroclastic flow, rather than promoting stability.

• Which geochemical consequence results when iron-oxidizing bacteria affect cave formations?
• Which consequence results when tephra deposition on glaciers accelerates melting?
• Which increased consequence occurs when intensive irrigation mobilizes salts?
• Which effect accelerates longshore drift when approaching headlands?
• Which crustal deformation mechanism results from the isostatic rebound after removal of ice sheets after subduction stops?
• Which risk increases because excessive removal of vegetation occurs in permafrost regions?