![]() ![]() ![]() (The relation between slope and viscosity falls under the topic of angle of repose. Mauna Loa is the classic example, with a slope of 4°-6°. Ī shield volcano has a gently sloping cone due to the low viscosity of the emitted material, primarily basalt. The most important types of volcanic mountain are composite cones or stratovolcanoes (Vesuvius, Kilimanjaro and Mount Fuji are examples) and shield volcanoes (such as Mauna Loa on Hawaii, a hotspot volcano). Most volcanoes occur in a band encircling the Pacific Ocean (the Pacific Ring of Fire), and in another that extends from the Mediterranean across Asia to join the Pacific band in the Indonesian Archipelago. A volcanic arc system is a series of volcanoes that form near a subduction zone where the crust of a sinking oceanic plate melts. ![]() Movements of tectonic plates create volcanoes along the plate boundaries, which erupt and form mountains. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |