Respuesta :
the two main agents of metamorphism are Heat and pressure. Heat leads to mineralogical changes in the rock. Pressure also influences those mineralogical changes, while directed pressure leads to foliation.
What is metamorphism?
- The process of metamorphism involves changing an existing rock's mineral composition or texture.
- Although metamorphism occurs at temperatures above 150 to 200 °C, as well as frequently at high pressures or in the presence of chemically active fluids, the rock stays largely solid throughout the process.
- Weathering and diagenesis, which are changes that occur at or near the Earth's surface, are not the same as metamorphism.
- Metamorphism can take many different forms, such as regional, contact, hydrothermal, shock, and dynamic metamorphism.
The typical temperatures, pressures, and rates at which they occur, as well as the degree to which reactive fluids are involved, vary between these.
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