mugéarite — ● mugéarite nom féminin Roche volcanique intermédiaire entre les basaltes et les trachytes … Encyclopédie Universelle
mugearite — /moo gēˈrīt/ noun A dark finely crystalline basic igneous rock composed mainly of oligoclase, orthoclase, and olivine, with iron oxides, developed at Mugeary in Skye … Useful english dictionary
mugearite — noun A kind of orthoclase bearing basalt that is made up of olivine, apatite, and opaque oxides … Wiktionary
Anahim hotspot — The Anahim hotspot is a volcanic hotspot in central British Columbia, Canada. It is situated on the Interior Plateau, a large region that lies between the Cariboo and Monashee Mountains to the east, and the Hazelton Mountains, Coast Mountains and … Wikipedia
Lava — flow redirects here. For the programming anti pattern, see Lava flow (programming). For other uses, see Lava (disambiguation) … Wikipedia
Basalt — For the World War II raid, see Operation Basalt. For the cities, see Basalt, Colorado and Basalt, Idaho. Basalt Igneous Rock Composition … Wikipedia
Volcanic arc — Mariana Islands, an oceanic island arc A volcanic arc is a chain of volcanoes positioned in an arc shape as seen from above. Offshore volcanoes form islands, resulting in a volcanic island arc. Generally they result from the subduction of an… … Wikipedia
Picrite basalt — or oceanite from the Piton de la Fournaise Picrite basalt, picrobasalt or oceanite[citation needed] is a variety of high magnesium olivine basalt that is very rich in the miner … Wikipedia
TAS classification — The TAS classification can be used to assign names to many common types of volcanic rocks based upon the relationships between the combined alkali content and the silica content. These chemical parameters are useful, because the relative… … Wikipedia
Coiron — Plateau du Coiron Plateau du Coiron Carte de localisation du plateau du Coiron. Géographie Altitude 1 017 m … Wikipédia en Français
