The picture shows a close-up section of some limestone paving that is situated close to the seafront, where it is exposed to the continual spray of salty sea. This gradual solution erosion has resulted in the softer parts of the stone eroding away to leave a pattern of holes and fossils, while the surface has been further smoothed by people walking over the paving.
Relevant image keywords:
abstract, architecture abstract, architecture backgrounds, background, close up, erosion, fossil background, full frame, grooves, holes, limestone, macro, marine organisms, nature, no people, outdoors, pattern, pitted, rough, sedimentary rock, skeletal fragments, stone, stone surface, sunny, surface, textured, uneven
