Some of the advantages that volcanoes provide include the creation of new land, mineral deposits and beautiful landscapes that generate tourism. Active volcanoes actively cool the Earth, as their emissions remove heat from the planet's interior. Volcanic activity also helped produce the Earth's atmosphere and oceans in the past.Continue Reading
Deposits resulting from volcanic eruptions are used as building materials. These materials come in the form of basalt and diabase that are used in various construction elements, such as concrete aggregate, road metal and railroad ballast. Concrete shields used in nuclear reactors are also partially made up of high-density basalt and diabase aggregate.
Volcanoes also play an active role in island creation around the planet. A famous example is the Hawaiian island chain, which was created by eruptions from a volcanic hot spot in the region. Volcanic eruptions also bring forth precious gems, such as opals. Pumice stone, which is used in construction and as an excess-skin remover, also is created in volcanic eruptions.
Volcanoes are also a large source of geothermal energy. This allows regions around a volcano to subsidize their energy requirements by siphoning energy from it. Iceland, which is one of the more volcanically active countries in the world, uses geothermal energy to provide for a sizable portion of its power requirements.Learn more about Volcanoes
Lava, or molten rock that erupts from volcanoes and fissures, is so hot because rock only melts at very high heat. Typically, only a small portion of any rock melts, even at depths of around 93 miles inside the Earth.Full Answer >
Names of some of the world's most famous volcanoes include Mount Vesuvius, Krakatoa, Mount St. Helens and Mount Tambora. While some of these volcanoes are known to be dangerous, as of 2015 some have not been active for over 100 years.Full Answer >
There are more than 550 active volcanoes in the world, almost all of which are located at convergent tectonic plate boundaries. This includes all of the volcanoes in the Pacific Ring of Fire, such as Japan's Mount Fuji, as well as Mount Saint Helens, Popocafepetl in Mexico and Azul in the Andes Range.Full Answer >
Plate boundaries are the weakest points in the Earth's crust, which leads to cracks that allow magma to seep through and develop volcanoes, according to NEWTON. These areas are called "subduction zones." Subduction zones form the Ring of Fire, a volcanic region in the Pacific Ocean, explains Live Science.Full Answer >