granofels A little-used name for a massive granoblastic metamorphic rock, consisting of equant grains of quartz and feldspar, hence lacking a foliation. Minor mafic minerals consist of pyroxene and garnet. The anhydrous mineral assemblages of such rocks are produced under the high-grade, anhydrous granulite facies conditions found at the base of the crust.
More From encyclopedia.com
Trachyte , trachyte Fine-grained volcanic rock of the alkaline series of intermediate rocks. Trachyte is the volcanic equivalent of syenite. trachyte gritty vol… Country Rock , Country rock The term country rock refers to a body of rock that receives or hosts an intrusion of a viscous geologic material. Intrusions into count… Iron Ores , Rocks Rocks are composed of minerals, which are natural inorganic (nonliving) substances with specific chemical compositions and structures. A rock m… Igneous Rocks , Igneous rocks are formed by the cooling and hardening of molten magma. The word igneous comes from the Latin word igneus, meaning fire, and there are… Rock , rock1 / räk/ • n. 1. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underly… Monocline , Monocline Monoclines are folds consisting of two horizontal (or nearly so) limbs connected by a shorter inclined limb. They can be compared to anticl…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like