Search results
Results from the WOW.Com Content Network
Metamorphic rocks form primarily at convergent plate boundaries and in mountain ranges due to the immense pressures and temperatures present. They also form at the contact between magma and existing rock (contact metamorphism).
Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components.
The study of metamorphic rocks (now exposed at the Earth's surface following erosion and uplift) provides information about the temperatures and pressures that occur at great depths within the Earth's crust. Some examples of metamorphic rocks are gneiss, slate, marble, schist, and quartzite.
Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Conditions like these are found deep within the Earth or where tectonic plates meet.
Metamorphic rock is formed under extreme heat or pressure. Unlike other types of rock, metamorphic rocks start as rocks which are then transformed into different rocks. Metamorphic rocks are classified as either foliated or non foliated depending on their mineral structure and pattern.
Rocks that undergo a change to form a new rock are referred to as metamorphic rocks. In the rock cycle , there are three different types of rocks: sedimentary, igneous, and metamorphic. Sedimentary and igneous rocks began as something other than rock.
Metamorphic rocks form due to the transformation of preexisting rocks in response to environmental changes such as heat, high pressure, and mechanical stress. The parent rock can be sedimentary, igneous, or even a different sort of metamorphic rock. The process of these changes is called metamorphism.