Ключевые слова: area, background, calcite, calcium, carbonate, cast, chalk, chalky, construction, cretaceous, deposit, dig, earth, ecology, environment, excavate, excavation, geological, geology, ground, hill, industrial, industry, land, landscape, lime, limepit, limestone, material, mine, mineral, mountain, natural, nature, open, opencast, pit, production, quarry, rock, rocky, site, sky, stone, stony, surface, texture, white,