“…Indeed, the role of subaerial versus subaqueous processes in Carlsbad Cavern currently remains controversial (e.g., Jagnow et al, 2000;Forti et al, 2002;Palmer et al, 2009;Calaforra and De Waele, 2011). However, morphological evidence for subaerial corrosion including cupolas, megascallops, domes, vents, niches, notches, and other features can be found in many sulfidic caves, suggesting that subaerial SAS may be more widespread than generally considered (Audra et al, 2007;Audra et al, 2009;Plan et al, 2012;Temovski et al, 2013). In early work in Frasassi, Galdenzi (1990) proposed a model for cavern development in the Frasassi cave system in which both subaerial and subaqueous processes were important.…”