Staring from direct observation carried out inside gypsum caves around Bologna (Italy), the authors develop a new theory about the role played by CO2 in gypsum karstification. Such a theory agrees with the presence of calcite sinters inside gypsum caves without any source of calcium carbonate (cover or interbedding layer). Moreover, starting from this theory, gypsum speleogenesis has to be always considered as a hyperkarstic phenomenon (more than 3 components at the equilibrium).
Forti, Paolo and Ernesto Rabbi.
The Role of CO2 in Gypsum Speleogenesis: 1° contribution.
International Journal of Speleology,
Available at: https://scholarcommons.usf.edu/ijs/vol11/iss3/3