Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". source
Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form".
The protolith may be a sedimentary rock, an igneous rock or another older metamorphic rock. source
The protolith may be a sedimentary rock, an igneous rock or another older metamorphic rock.
Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's current land surface. source
Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's current land surface.
Metamorphic rocks are classified by texture and by chemical and mineral assemblage (metamorphic facies). source
Metamorphic rocks are classified by texture and by chemical and mineral assemblage (metamorphic facies).
Metamorphic rocks may be formed simply by being deep beneath the Earth's surface, subjected to high temperatures and the great pressure of the rock layers above it. source
Metamorphic rocks may be formed simply by being deep beneath the Earth's surface, subjected to high temperatures and the great pressure of the rock layers above it.
Metamorphic rocks can form from tectonic processes such as continental collisions, which cause horizontal pressure, friction and distortion. source
Metamorphic rocks can form from tectonic processes such as continental collisions, which cause horizontal pressure, friction and distortion.
Metamorphic rocks are formed when rock is heated up by the intrusion of hot molten rock called magma from the Earth's interior. source
Metamorphic rocks are formed when rock is heated up by the intrusion of hot molten rock called magma from the Earth's interior.
Some examples of metamorphic rocks are gneiss, slate, marble, schist, and quartzite. source
Some examples of metamorphic rocks are gneiss, slate, marble, schist, and quartzite.
Metamorphic minerals are those that form only at the high temperatures and pressures associated with the process of metamorphism. source
Metamorphic minerals are those that form only at the high temperatures and pressures associated with the process of metamorphism.
Contact metamorphism is the name given to the changes that take place when magma is injected into the surrounding solid rock (country rock). source
Contact metamorphism is the name given to the changes that take place when magma is injected into the surrounding solid rock (country rock).
Metasomatismrocks is the drastic change in the bulk chemical composition of a rock that often occurs during the processes of metamorphism. source
Metasomatismrocks is the drastic change in the bulk chemical composition of a rock that often occurs during the processes of metamorphism.
Important mechanism of metamorphism is that of chemical reactions that occur between minerals without them melting. source
Important mechanism of metamorphism is that of chemical reactions that occur between minerals without them melting.
Mechanism of metamorphism is due to the introduction of chemicals from other surrounding rocks. source
Mechanism of metamorphism is due to the introduction of chemicals from other surrounding rocks.
The change in the particle size of the rock during the process of metamorphism is called recrystallization. source
The change in the particle size of the rock during the process of metamorphism is called recrystallization.
Foliated rocks are types of metamorphic rock that have parallel bands of grain. source
Foliated rocks are types of metamorphic rock that have parallel bands of grain.
