Metamorphic rocks are formed by the transformation of pre-existing rocks through intense heat, pressure, or the action of fluids and chemical reactions. These rocks undergo changes in their texture, mineralogy, and overall composition, resulting in a distinct and often banded appearance. The process of metamorphism typically occurs deep beneath the Earth's surface, where rocks are subjected to extreme conditions. Metamorphic rocks can be classified into two major categories: foliated and non-foliated. Foliated rocks, such as slate and gneiss, exhibit a layered or banded structure due to the alignment of minerals during the metamorphic process. On the other hand, non-foliated rocks like marble and quartzite lack this layered appearance and tend to be more uniform in texture. These rocks are a testament to the dynamic nature of our planet and provide valuable insights into the geological history of the Earth. make this less formal like 5 grade levle
Metamorphic rocks happen when old rocks change because of heat, pressure, or chemicals. They look different from before because their texture, minerals, and composition change. Metamorphism usually happens deep inside the Earth where conditions are really extreme. There are two main kinds of metamorphic rocks: foliated and non-foliated. Foliated rocks, like slate and gneiss, have layers or bands because the minerals line up when they change. Non-foliated rocks, like marble and quartzite, don't have layers and are more the same all over. These rocks show us how our planet changes and help us understand its history.
