In geology, bedrock is solid rock that lies under loose material (regolith) within the crust of Earth or another terrestrial planet.
Archaeological investigation has shown that the nation flourished between the 13th and the 8th centuries BC and was destroyed after a period of decline in the 6th century BC by the Babylonians.
The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith.