The spelling of the word "plutonic" can be a bit confusing because it is not pronounced the way it is spelled. According to the International Phonetic Alphabet (IPA), the correct pronunciation of "plutonic" is /pluːˈtɒnɪk/. This means that the "u" is pronounced as "oo," the "o" is pronounced as "ah," and the "t" is pronounced with a "hard" sound. Despite its tricky spelling and pronunciation, "plutonic" is a common geological term used to describe igneous rocks that form deep within the Earth's crust.
Plutonic is an adjective that refers to something related to or characteristic of the planet Pluto. However, in a more commonly used context, it is primarily associated with geology and refers to a type of igneous rock that is formed deep within the Earth's crust.
In the geological sense, plutonic rocks are formed from magma that solidifies beneath the surface of the Earth. The cooling of this molten material occurs at a slow pace, allowing for the formation of coarse-grained crystals. This slow cooling process contributes to the characteristic texture of plutonic rocks, which is generally granular or phaneritic.
Plutonic rocks, also known as intrusive rocks, are typically found in large masses or bodies, commonly referred to as plutons. Due to their deep-seated formation, plutonic rocks often have a mineral composition that differs from those formed closer to the Earth's surface. Some common examples of plutonic rocks include granite, gabbro, and diorite.
Plutonic rocks play a significant role in the Earth's geology and have been a subject of study for geologists and researchers for centuries. Their formation and subsequent exposure at the Earth's surface through erosion and uplift provide valuable insights into the geological history and processes that have shaped our planet.
In geol., applied to igneous rocks found at some depth in the earth, as distinct from volcanic, which are consolidated on the surface-the Plutonic being more crystalline, and exhibiting more structure than the volcanic.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "plutonic" has its etymology in Greek mythology. It comes from the name of the Greek god, Pluto. Pluto was the ruler of the underworld and wealth, which included precious minerals and metals that were often found deep underground.
In the field of geology, the term "plutonic" is used to describe igneous rocks that solidify deep beneath the Earth's surface. These rocks are formed through the cooling and crystallization of magma over a long period of time. The name "plutonic" was chosen to reflect the rocks' association with Pluto, as they are believed to have originated from deep within the Earth.