Tectonophysics Tectonophysics Comment on “First records of syn-diagenetic non-tectonic folding in Quaternary thermogene travertines caused by hydrothermal incremental veining” by Billi et al. Tectonophysics 700–701 (2017) 60–79 Alçiçek M.C. Alçiçek H. Altunel E. Arenas C. Universidad de Zaragoza Bons P. Brogi A. Capezzuoli E. de Riese T. Porta G.D. Gandin A. Guo L. Jones B. Karabacak V. Kershaw S. Liotta D. Mindszenty A. Pedley M. Ronchi P. Swennen R. Temiz U. 2017 research-article