Carbonate precipitation under bulk acidic conditions as a potential biosignature for searching life on Mars - Fernandez-Remolar, David C.; Preston, Louisa J.; Sanchez-Roman, Monica; Izawa, Matthew R. M.; Huang, L.; Southam, Gordon; Banerjee, Neil R.; Osinski, Gordon R.; Flemming, Roberta; Gomez-Ortiz, David; Prieto Ballesteros, Olga; Rodriguez, Nuria; et al. (Earth And Planetary Science Letters, 2012)