The Metamorphic Equivalent Of Granite Is

Paragneiss is gneiss derived from sedimentary rock such as sandstone.

The metamorphic equivalent of granite is.

Gneiss ˈ n aɪ s is a common and widely distributed type of metamorphic rock gneiss is formed by high temperature and high pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks orthogneiss is gneiss derived from igneous rock such as granite. A useful tool illustrating the relationships among igneous sedimentary and metamorphic rocks is called the. Granites can be predominantly white pink or gray in color depending on their mineralogy the word granite comes from the latin granum a grain in reference to the coarse grained structure of such a completely crystalline rock. Granite is equivalent to gneiss what metamorphic rock does granite form into.

The metamorphic rock that granite forms is gneiss. 2013 03 25 18 31 02 2013 03 25 18 31 02. Metamorphic rocks form from pre existing rocks parent rocks due to changes in either temperature pressure or volatiles within the earth often by a combination of all three. Metamorphism is the addition of heat and or pressure to existing rocks which causes them to change physically and or chemically so that they become a new rock.

Metamorphic rocks the word metamorphic is derived from the greek words meta change and morph form when applied to rocks it therefore refers to rocks that have changed their form rocks that may have originally been sedimentary igneous or another metamorphic rock. Volatiles are those chemical substances including water and carbon dioxide that easily turn into gas or fluid and are mobile enough to move in and out of solid rock. What is the metamorphic equivalent of granite. In the large outcrop of metamorphic rocks in figure 1 the rocks platy appearance is a result of the process metamorphism.

Granites and rhyolites compositionally equivalent to granite but of a fine grain size are composed mainly of orthoclase feldspar quartz plagioclase feldspar mica and amphibole. Strictly speaking granite is an. The coarse grained equivalent of basalt is a n. This chart illustrates the generalized mineral composition of igneous rocks.

Under ideal conditions rock can melt and yield a granite composition at temperatures as low as. Granite is equivalent to gneiss.