GEOLOGY

Detailed explanation-1: -At some places on Earth’s surface, thin layers of lava pour out of a vent and harden on top of previous layers. An individual flow rarely exceeds 25 feet in thickness. Such lava flows gradually build a wide, gently sloping mountain called a shield volcano.

Detailed explanation-2: -Shield volcanoes Where a volcano produces low viscosity, runny lava, it spreads far from the source and forms a volcano with gentle slopes: a shield volcano. Most shield volcanoes are formed from fluid, basaltic lava flows. Mauna Kea and Mauna Loa are shield volcanoes.

Detailed explanation-3: -Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior’s shield.

Detailed explanation-4: -pyroclastic flow. noun. current of volcanic ash, lava, and gas that flows from a volcano.

Detailed explanation-5: -A shield volcano is a type of volcano named for its low profile, resembling a warrior’s shield lying on the ground. It is formed by the eruption of highly fluid (low viscosity) lava, which travels farther and forms thinner flows than the more viscous lava erupted from a stratovolcano.