geoloogia haru, mis käsitleb maakoort moodustavate kivimkehade vanuselist järjestust ja ruumilisi suhteid ning määrab nende suhtelise vanuse
science on the age conditions and positions among geological deposits (stratas); it is concerned not only with the original succession and age relations of rock strata but also with their form, distribution, lithologic composition, fossil content, geophysical and geochemical properties - indeed, with all characters and attributes of rock as strata and their interpretation in terms of environment or mode of origin and geologic history
