Basalt is the primary rock type that constitutes the oceanic crust and forms the bulk of shield volcanoes. It is a dark, fine-grained igneous rock formed from the rapid cooling of low-silica (basic) lava. Basalt is the most common volcanic ...
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Geysers and hot springs are most common in areas of recent volcanic activity where magma remains close to the surface. These geothermal features require a heat source to warm groundwater. When the water is under pressure in constricted underground plumbing, ...
Sulfur Dioxide (SO2) is the gas responsible for global cooling after major eruptions. When injected into the stratosphere, it reacts with water vapor to form sulfate aerosols. These aerosols create a reflective veil that scatters incoming solar radiation back into ...
A shield volcano has the gentlest slope and covers the largest geographical area, resembling a warrior’s shield lying on the ground. This shape is caused by the eruption of highly fluid, basaltic lava that flows easily over long distances before ...
The Mayon Volcano is located in the Albay province of the Philippines on the island of Luzon. It is internationally renowned for its “perfect cone” shape, a result of its symmetrical stratovolcanic structure. As one of the most active volcanoes ...