rock cycle
time-consuming transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous
en-GB/ˈɹɒk ˈsaɪkl/
en-US/ˈɹɑk ˈsaɪkəl/
time-consuming transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous