Although notoriously difficult to delineate from the wider family of carbonate rocks and sediments, non-marine carbonates represent an important subset, forming in a large variety depositional settings such as lakes, rivers, hydrothermal vents, caves, soils sites affected by alkaline pollution (Pentecost, 2005; Alonso Zarza & Tanner 2010; Capezzuoli et al., 2014; Della Porta, 2015) (Figure 1). ...