Which outcome follows when buoyant magma intrudes brittle lithosphere?

💡 Explanation

Shield volcano formation results because pressure release drives decompression melting—where reducing overburden allows magma ascent—therefore creating broad, gentle lava flows forming shield-like volcanoes, rather than triggering earthquakes or fault stabilization.

• Which risk greatly increases after a pyroclastic surge?
• Which outcome results when increased acidic rainfall impacts limestone coastlines?
• Which phenomenon causes large-scale ocean currents in the Northern Hemisphere to deflect to the right?
• Which consequence results when a pyroclastic surge encounters subsurface groundwater?
• Which risk increases when upstream river engineering projects disrupt sediment deposition in floodplains adjacent to engineered levees?
• Which process increases when glacial meltwater stream volume increases?