Ключевые слова: abstract, ancient, background, brown, closeup, crust, depth, earth, earth crust, earths, earths crust, erosion, gas deposit, geological, geological features, geological formations, geology, isolated, landscape, material, mineral, mineral composition, mineral deposits, mineralogy, natural, nature, object, oil deposit, old, pattern, patterns, piece, rock, rock layers, rock textures, rocky landscape, rugged terrain, soil, stone, surface, texture, textured, water, white,