Which volcanic outcome increases when basalt viscosity rises?

💡 Explanation

Increased basalt viscosity enhances trapped gas pressure, therefore escalating explosive potential via volatile release, a process called volatile fractionation, rather than forming shield volcanoes or promoting lava flow, because lower viscosity basalt allows more efficient degassing.

• Which consequence results when levee compaction subsides unevenly?
• Which outcome commonly arises when human infrastructure disrupts longshore sediment transport?
• Which effect most immediately reduces primary productivity during El Niño events where upwelling of the Humboldt Current weakens?
• Which process limits nutrient transport rates in stratified subtropical gyres containing a strong thermocline?
• Which mechanism initiates the creation of a cirque on a mountainside subject to glaciation?
• Which outcome on vegetation distribution results from the rain shadow effect?