High temperature and low-pressure metamorphism can occur during the rifting stage and reflects a temporal trend of increasing temperature and decreasing pressure during the continental breakup.

• 变质作用中高温低压环境主要发生在裂谷作用阶段，其特点反映了大陆解体过程中随着时间的增温和减压过程，而拆离伸展阶段则被脆性变形所代替。