Which geological outcome primarily results from magma with high silica content and dissolved gases reaching Earth's surface?

💡 Explanation

When magma with high silica content and dissolved gases rises, increased viscosity restricts gas escape, causing pressure buildup and violent expansion during the eruption. Therefore, explosive eruptions result, rather than effusive flows or shield volcanoes which require lower viscosity magma and steady outgassing.

• Which outcome occurs when increased atmospheric carbon dioxide concentrations enhance limestone dissolution?
• Which outcome occurs when a transform fault zone restricts a river's meander plain expansion?
• What outcome arises when a large-scale oceanic gyre reaches land?
• Which outcome occurs when intense tropical rainfall accelerates weathering?
• Which deformation pattern frequently develops adjacent to continental transform plate boundaries?
• Which factor most directly elevates the likelihood of explosive volcanism along subduction zones?