Vaggelli G, Borghi A, Cossio R, Ghignone S, Lippolis C. Machine learning approach to Nemrut Dağ and Bingöl obsidians: insights from Tūlūl al Baqarat obsidian prehistoric tools (Iraq, IV millennium BC) and volcanological implications. Ann. Geophys. 2025;69. doi:10.4401/ag-9369