any of the sciences that deal with the earth or its parts

of or relating to or based on geology

of or relating to or based on geology

of or relating to or based on geology

of or relating to or based on geology

a specialist in geology

the scientific study of the earth's configuration above sea level (emphasizing the measurement of land altitudes relative to sea level)

the study of geologic features once at the surface of the earth but now buried beneath rocks

geology that uses physical principles to study properties of the earth

the science of mountains

the branch of geology that studies the arrangement and succession of strata

of valleys and rivers; progressing in a direction opposite to the dip in surrounding rock strata

of valleys and rivers; running in the direction of the dip in surrounding rock strata

sloping downward away from a common crest

sloping downward toward each other to create a trough

deposited or arranged in horizontal layers