"Some of the Earth's grandest mountains are composite volcanoes-sometimes called stratovolcanoes. They are typically steep-sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8,000 feet above their bases. Some of the most conspicuous and beautiful mountains in the world are composite volcanoes, including Mount Fuji in Japan, Mount Cotopaxi in Ecuador, Mount Shasta in California, Mount Hood in Oregon, and Mount St. Helens and Mount Rainier in Washington.
Most composite volcanoes have a crater at the summit which contains a central vent or a clustered group of vents. Lavas either flow through breaks in the crater wall or issue from fissures on the flanks of the cone. Lava, solidified within the fissures, forms dikes that act as ribs which greatly strengthen the cone.
The essential feature of a composite volcano is a conduit system through which magma from a reservoir deep in the Earth's crust rises to the surface. The volcano is built up by the accumulation of material erupted through the conduit and increases in size as lava, cinders, ash, etc., are added to its slopes."
Want to add an example to this list? Select a Geothermal Resource Area to edit its "Topographic Features" property using the "Edit with Form" option.CSV
|Ogiri Geothermal Area||Ryuku Arc||Subduction Zone||Quaternary||Andesite||30 MW|
|Oguni Geothermal Field||Japan: Energy Resources||Subduction Zone||2 MW|
|Rincon De La Vieja Geothermal Resource Area||Rincon De La Vieja||Subduction Zone||Andesite||42 MW|
|Takigami Geothermal Area||Ryuku Arc||Extensional Tectonics|
|Yamagawa Geothermal Area||Ryuku Arc||Subduction Zone||Neogene to Recent||Volcanics||30 MW|