GEOLOGY

Detailed explanation-1: -Basalt plateau refers to an extensive, thick, smooth flow or succession of flows of high-temperature, fluid basalt erupted from fissures, flooding topographic lows, and accumulated to form a plateau. It is the least explosive type of volcano.

Detailed explanation-2: -Answer and Explanation: Shield volcanoes tend to be the least explosive volcanoes. Most of the material they produce is lava, rather than the more explosive pyroclastic material.

Detailed explanation-3: -Most shield volcano eruptions are nonexplosive (effusive), usually 0-1 on the Volcanic Explosivity Index (VEI), typically in the Hawaiian eruptive style. These eruptions produce fluid lava flows and may produce fire-fountains.

Detailed explanation-4: -Shield volcanoes spew lava that is comparatively thinner and runnier than stratovolcanoes. The result is that gas can more easily escape, so their eruptions tend to be less dramatic.

Detailed explanation-5: -Stratovolcanoes are more likely to produce explosive eruptions due to gas building up in the viscous magma. Andesite (named after the Andes Mountains), is perhaps the most common rock type of stratovolcanoes, but stratovolcanoes also erupt a wide range of different rocks in different tectonic settings.