Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en grooved rocks300400637grooved rockrocks, grooved Boulders marked with deep, parallel furrows. There is no consensus as to the reason for these grooves, but it is possible that these rocks were used to polish stone tools in prehistoric times, or as timekeeping marks. grooved rocks (traducció pendent) roca estriada 2026-03-30 20:37:19