Phanerite series is a geological term used to describe a type of rock formation with visible crystals. The spelling of phanerite is pronounced as /fænəɹaɪt/, with emphasis on the second syllable. The "ph" at the beginning of the word is pronounced like an "f," and the "e" at the end is pronounced like an "uh" sound. The "i" in the second syllable is pronounced like an "eye" sound, and the "t" at the end is pronounced softly with a slight puff of air.
The phanerite series is a term used in geology to describe a group of igneous rock textures where the individual mineral grains are visible to the naked eye. Phanerite rocks have a coarse-grained texture, meaning that their mineral grains are relatively large and can be easily distinguished without the need for magnification. This texture is a result of slow cooling and crystallization of magma or lava deep within the Earth's crust or upper mantle.
The phanerite series encompasses a range of rock types, including granite, gabbro, diorite, and syenite, among others. These rocks commonly display a variety of mineral grains such as quartz, feldspar, mica, and amphibole, creating a distinct and recognizable appearance. The individual grains are typically interlocking or have irregular boundaries, indicating a long cooling history that allowed for significant crystal growth.
The phanerite series is often contrasted with the aphanitic series, which refers to rocks with a fine-grained texture where individual mineral grains cannot be discerned without magnification. The distinction between phaneritic and aphanitic textures is crucial in identifying and classifying igneous rocks, as it provides important information about their cooling history and origin.
In summary, the phanerite series refers to a group of coarse-grained igneous rocks characterized by visible mineral grains, formed through slow cooling and crystallization deep within the Earth's crust or upper mantle.
In geol., a term sometimes employed to designate the uppermost stage of the earth's crust, consisting of deposits produced by causes in obvious operation.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "phanerite" is derived from the Greek language. It comes from the Greek word "phanerós", which means "visible" or "manifest". In the context of geology, a phanerite series refers to a classification of igneous rocks based on their texture. These rocks have a coarse-grained texture, where individual mineral crystals are large enough to be visible to the naked eye. The term "phanerite" was coined to describe this type of rock texture.