BRITISH ANTARCTIC SURVEY / SCIENCE PHOTO LIBRARY BRITISH ANTARCTIC SURVEY / SCIENCE PHOTO LIBRARY
Studying rock layers. Sedimentologist recording details of layers or strata in a rock section. Some rocks are formed when layers of sediment (deposited by a river, for example) are compressed. By studying the layers, a sedimentologist can reconstruct the processes that created the rock. Photographed on Seymour Island, Antarctica.
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