This is more a smoothing of the wall than an engraving. The incision is surrounded by bulges of displaced clay. Inside the line are harder particles, probably grains of calcite, which have scratched the wall.
Yanik Le Guillou – Équipe Chauvet – Ministère de la Culture et de la Communication.
Yanik Le Guillou – Équipe Chauvet – Ministère de la Culture et de la Communication.
Vist the site : The Chauvet-Pont d'Arc cave