n.变质；变化；变态；变质作用

Metamorphism is the process by which rocks are transformed due to heat and pressure.
由于热量和压力的作用，岩石会发生变质作用。
The intense heat and pressure deep in the Earth's crust can cause metamorphism of rocks.
地球地壳深处的高温和高压可以引起岩石的变质作用。
Metamorphic rocks often form when sedimentary or igneous rocks are subjected to high temperatures and pressures.
当沉积岩或火成岩受到高温和高压的影响时，往往会形成变质岩。
The presence of metamorphic minerals like garnet, mica, and quartz can indicate that a rock has undergone metamorphism.
如石榴石、云母和石英等变质矿物的存在表明岩石已经经历了变质作用。
Metamorphism can occur at various depths within the Earth's crust, from shallow to deep levels.
变质作用可以在地球地壳的不同深度发生，从浅层到深层。
The type of metamorphism that occurs depends on factors such as temperature, pressure, and the original rock type.
发生的变质作用类型取决于温度、压力以及原始岩石类型等因素。
The process of metamorphism can result in the recrystallization of minerals within a rock.
变质作用过程可以导致岩石中矿物的重结晶。
Metamorphic rocks can be classified into different groups based on their texture and mineral composition.
可以根据纹理和矿物成分将变质岩分类为不同的组别。
High-grade metamorphism typically occurs at greater depths and involves more intense heat and pressure than low-grade metamorphism.
高级变质作用通常发生在更深的地方，并且涉及比低级变质作用更强烈的热量和压力。
The study of metamorphism helps geologists understand the history of rock formation and the processes that have affected Earth's crust over time.
研究变质作用有助于地质学家了解岩石形成的历程以及随着时间推移影响地球地壳的进程。