Around the world, there are roughly 1500 potential active volcanos. Most of these volcanoes are around the Pacific Rim also referred to as ‘Ring of Fire.'
Volcanic ash has minerals within it when incorporated into the soil; it adds nutrients.
Volcanic mountain slopes are steep in nature. It makes it inaccessible to both animals and human beings. It provides habitat for rare plant and animal species away from human manipulation.
Gases that erupt from volcanoes provide water and atmosphere. Regardless of the slow processes involves I making them it is significant over an extended period.
Most volcanoes exist on the brink of tectonic plates. Amongst the tectonic plates, the largest is the Pacific plate. Most volcanos occur along the Ring of Fire in the Pacific Ocean basin.
Island arc volcanoes form when two oceanic tectonic plates collide, and one subdues under the other. They form islands.
Intraplate volcanoes also referred to as hot spots are volcanoes formed from activities that take place within plates. They are not involved in the plates movements. An example is the Hawaiian Islands.
Mid-ocean ridges form at spreading centers. Spreading centers volcanoes form when two plates diverge. Hot asthenosphere replaces the void left forming the volcanoes.
Subduction volcanoes form when two plates converge. One plate descends on the other that consumes the ocean lithosphere to the earth's mantle. Subduction volcanoes exist along the Ring of Fire in the Pacific Ocean.
Fissure volcanoes, shield volcanoes, volcano dome, caldera volcano, ash-cider volcano.
Caldera volcanoes are large craters. Two different processes form them; collapse of surface rocks or explosive volcanic eruption. When large chambers of magma empty during a volcanic eruption, the roof of the chamber collapse creating a large crate. Explosive Calderas form when massive magma chambers move upwards due to depth. These magmas have high viscosity enabling them to hold gas under high pressure. Magma rises to the surface resulting in a reduced pressure that causes expand of the gas causing an explosion. It leads to an explosion blasting large rocks forming calderas.
