What Causes Granite To Be Transformed Into Gneiss

What geologic process can change granite igneous rock into gneiss metamorphic rock.

What causes granite to be transformed into gneiss.

The appearance of granular minerals is what marks the transition into gneiss. Metamorphic rocks form from heat and pressure which changes the original or parent rock into a completely new rock. Short succinct and correct answer. There are no chemical changes but structural.

Another important structural change is the development of foliation or linear appearance in a gneiss. All rocks undergo a series of processes called the rock cycle where one type of rock changes into another. Granite gneiss can also form through the metamorphism of sedimentary. More fleshed out fuller and still correct answer.

Add heat to this process and magmas release co2 and water that help melt rocks. Sedimentary you answered correctly. As the basalt releases heat and fluids large chunks of continental curst have the potential to transform into granite. What causes granite to be transformed into gneiss.

Gneiss displays distinct foliation representing alternating layers composed of different minerals however unlike slate and schist gneiss does not preferentially break along planes of foliation. With pictures porcelain is a very hard translucent white ceramic that has been manufactured in china since the 600s and in europe since the 1700s. These rocks primarily consist of quartz feldspar and mica. Heat and pressure cause granite to become gneiss and change sandstone into quartzite.

Intense heat and pressure can also metamorphose granite into a banded rock known as granite gneiss this transformation is usually more of a structural change than a mineralogical transformation. Melting you answered correctly. Gneiss gneiss is a high grade metamorphic rock meaning that it has been subjected to higher temperatures and pressures than schist it is formed by the metamorphosis of granite or sedimentary rock. The change from granite to gneiss is not mineralogical i e.

Heat and pressure d. It is impossible for granite to turn into gneiss it is a scientific impossibility that cannot be done with only heat and pressure. Compacting and cementing b. Gneiss is a metamorphic rock granite is an igneous rock and sandstone is a sedimentary rock.

It takes thousands of years for granite to cool. Heat and pressure cause granite to become gneiss and change. Plate tectonics typically subduction force basaltic magmas to rise beneath the continents. When subjected to intense heat and pressure granite will.