Mobility of Mercury in the Volcanic/Geothermal Area of Nisyros (Greece)

Abstract

In the summer 2013, mercury concentrations in soils and air from Nisyros (Greece), an active volcanic island located in the Aegean

Active hydrothermal fluids circulation triggering small-scale collapse events: the case of the 2001–2002 fissure in the Lakki Plain (Nisyros Island, Aegean Sea, Greece)

“…Structural lineaments buried underneath the soft caldera deposits were also inferred on the basis of CO 2 soil flux anomalies recognized in the vegetated portion of the Lakki Plain (Caliro et al 2005). These highly permeable lineaments are supposed to favor the uprising of hydrothermal fluids up to shallow depths (Gagliano et al 2017). The interaction between the deep-originated fluids, highly aggressive due to the presence of acidic species (mainly CO 2 and H 2 S), and the caldera-filling terrains is to be thought as a likely cause of hypogenic weathering (López and Williams 1993;Principe and Marini 2005;Daskalopoulou et al 2014).…”