Which outcome occurs when mafic lava erupts underwater?

💡 Explanation

Pillow lava forms because rapid cooling via contact occurs in underwater mafic lava flows, resulting in rounded shapes from outward pressure and chilled margins; therefore, pillow lava forms, rather than obsidian because that needs subaerial slower cooling.

• Which outcome results when extensive wind-driven deflation occurs in semi-arid climates?
• Which outcome is magnified by the orographic effect?
• Which process significantly reduces surface salinity within the subpolar gyre in the North Atlantic?
• Which outcome occurs when glacial advance into periglacial lakes?
• Which mechanism allows cave formation in fractured limestone?
• Which outcome occurs when increased deforestation destabilizes soils above karst landscapes?