Metamorphism is the process by which rocks change in composition, texture, or structure due to extreme heat and pressure. There are six main types of metamorphism: regional metamorphism, contact metamorphism, burial metamorphism, seafloor metamorphism, subduction zone metamorphism, and shock metamorphism. Regional metamorphism occurs when rock layers are compressed, folded, and buried deep underground. Contact metamorphism happens when magma intrudes into the upper crust near rock layers. Burial metamorphism takes place when sediments are buried deeply enough that heat and pressure cause mineral recrystallization and growth.

2. -It is the process by which
rocks are change in
composition, texture or
structure by extreme heat
and pressure.

4. There are 6
types of metamorphism
• Regional metamorphism
• Contact metamorphism
• Burial metamorphism
• Seafloor metamorphism
• Subduction zone metamorphism
• Shock metamorphism

5. Regional
metamorphism
• During regional
metamorphism, rock layers
are compressed, folded and
buried.

9. • This happens when a body
of magma intrudes into the
upper part of the crust.
Contact
metamorphism

11. • This occurs when sediments are
buried deeply enough that the heat
and pressure cause minerals to begin
to recrystallize and new minerals to
grow.

12. • An oceanic spreading ridge, recently
formed oceanic crust of gabbro and
basalt is slowly moving away from the
plate boundary.

14. • Where ocean lithosphere is forced
down into the hot mantle, there is a
unique combination of relatively low
temperature and very high pressure.

18. • When extraterrestrial object hit Earth,
the result is shock wave.

21. • Result of very high shear stress such as
occurs along fault zone. It occurs at
relatively low temperatures compared
to other types of metamorphism.

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