pyroxene-andesite

См. также в других словарях:

• Andesite — Andésite Un échantillon d andésite (en noir) avec des inclusions de zéolite …   Wikipédia en Français

• Andesite — An des*ite, n. (Min.) An eruptive rock allied to trachyte, consisting essentially of a triclinic feldspar, with pyroxene, hornblende, or hypersthene. [1913 Webster] …   The Collaborative International Dictionary of English

• andesite — [an′də zīt΄] n. [after ANDES (MOUNTAINS) + ITE1] a dark colored, fine grained, extrusive igneous rock consisting chiefly of plagioclase feldspars with some biotite, hornblende, or pyroxene …   English World dictionary

• andesite — andesitic /an deuh zit ik/, adj. /an deuh zuyt /, n. a dark colored volcanic rock composed essentially of plagioclase feldspar and one or more mafic minerals, as hornblende or biotite. [1840 50; named after ANDES; see ITE1] * * * Any member of a… …   Universalium

• Andesite — For the extinct cephalopod genus, see Andesites. Andesite (pronEng|ˈændəsaɪt) is an igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. The mineral assemblage is typically dominated by plagioclase plus… …   Wikipedia

• andesite — GLOSSARY OF VOLCANIC TERMS A grey to grey green colored volcanic rock containing 53% to 63% silica (compositionally between basalt and dacite). Minerals commonly found in andesite include intermediate composition plagioclase and hornblende. USGS… …   Glossary of volcanic terms

• andesite — /ˈændəzaɪt/ (say anduhzuyt) noun a volcanic rock composed essentially of plagioclase felspar together with pyroxene, resembling trachyte in appearance. {named after the Andes + ite1} …  

• Trachy-andésite — Une trachy andésite ou trachyandésite est une roche volcanique de la série alcaline, intermédiaire entre un trachybasalte et un trachyte. Généralement de couleur grise, elle contient des phénocristaux de feldspath, pyroxène et/ou amphibole. Les… …   Wikipédia en Français

• Mount Shasta — This article is about the volcano in California. For the town, see Mount Shasta, California. For other peaks named Shasta, see List of peaks named Shasta. Mount Shasta Mount Shasta from the south, taken near Dunsmuir, California …   Wikipedia

• Yatsugatake Mountains — Geobox|Range name = Yatsugatake Mountains native name = 八ヶ岳 Yatsugatake other name = category = Range etymology = Mountain with eight peaks image caption = Yatsugatake Mountains with Mount Mizugaki in the foreground. (October 2007) country =… …   Wikipedia

• igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium