Sentence:  The ground defied the Council. It changed in sped-up <WSD>corrasion</WSD>, in the buckling of tectonics at some psychotic rate as if time was untethered from its rules. 
Meaning of the word marked with <WSD> tags:  Corrading (erosion by abrasion) caused by such as: wind-blown or water-borne sand, stream-borne or glacier-borne stones, or collisions between stones under the influence of seaside breakers.