ナショナルジオグラフィックのインスタグラム(natgeo) - 12月29日 06時19分

Photo by Robbie Shone @shonephoto | Yuri Dublyansky and Rayan Achmedianov, from the Science-Research Center for Protection and Use of the Objects of Cultural Heritage of Republic of Bashkortostan (NPC), collect calcite samples that have formed on top of ancient paintings. Back in the laboratory, Yuri uses a form of dating called uranium-thorium to establish an age for the calcite and thus the paintings.
This panel of artwork is called “Horse bas-relief” and is located on the Eastern wall in the Hall of Drawings of Shulgan-Tash (Kapova) cave, in the Republic of Bashkortostan, Ural Mountains, Russia.

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