It is a process in which sudden changes in ambient temperature break down rocks that dilate with the heat of the day and contract with the cold of the night. From the Greek 952; 949; 961; 956; 959; 962; ( thermós "hot, temperature" ) 954; 955; 945; 963; 964; 959; 962; ( klastós "broken, broken") . See cryoclastia, hydroclastia, haloclastia.
