Which outcome results when low silica magma is exposed to extremely high pressures?

💡 Explanation

An effusive eruption results because decompression melting reduces magma viscosity, therefore enabling the increased magma flow and broad lava formation, rather than viscous andesitic formation that would occur at higher silica content.

• Which process primarily influences the stability of fjord slopes following glacial retreat, potentially leading to landslides?
• Which outcome occurs when dynamic pressure increases along a section of a barrier island coastline?
• Which consequence results when a transform fault restricts sediment transport?
• Which topographical outcome occurs when seasonal flooding deposits sediment atop an alluvial fan?
• Which process causes nutrient upwelling on the eastern edge of ocean gyres contributing to high marine productivity?
• Which volcanic event is inhibited when overburden pressure exists?