aphyric

aphyr·ic

English syllables. 2014.

Look at other dictionaries:

  • aphyric — (ˈ)ā|firik, fīr adjective Etymology: International Scientific Vocabulary a (II) + phyric; orig formed as German aphyrisch : not porphyritic …   Useful english dictionary

  • Phenocryst — A phenocryst is a relatively large and usually conspicuous crystal distinctly larger than the grains of the rock groundmass of a porphyritic igneous rock. Phenocrysts often have euhedral forms either due to early growth within a magma or by post… …   Wikipedia

  • Latite — is an igneous, volcanic (extrusive) rock, with aphanitic aphyric to aphyric porphyritic texture. Its mineral assemblage is usually alkali feldspar and plagioclase (in a ratio < 1:4). Quartz is absent in a feldspathoid bearing latite, and olivine… …   Wikipedia

  • Coso Volcanic Field — A basaltic lava flow that is typical of the process that created the stepped terraces of Coso as it flowed across the landscape, producing a more or less flat surface eroding to a sheer front …   Wikipedia

  • Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …   Wikipedia

  • Mount Pleasant Caldera — Elevation approx. 248 m (814 ft) Listing List of volcanoes in Canada …   Wikipedia

  • Nintoku Seamount — Map Bathymetric mapping of Nintoku …   Wikipedia

  • афірова структура — афировая структура aphyric texture aphyrische Struktur дрібнокристалічна структура ефузивних г.п., які не мають вкраплеників (фенокристалів). Протилежне – порфірова структура …   Гірничий енциклопедичний словник

  • -phyric — |firik, īrik, rēk adjective combining form Etymology: International Scientific Vocabulary phyre + ic : porphyritic aphyric …   Useful english dictionary

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