Exceptionally stable preindustrial sea level inferred from the western Mediterranean Sea.

An accurate record of preindustrial (pre-1900 CE) sea level is necessary to contextualize modern global mean sea level (GMSL) rise with respect to natural variability. Precisely dated phreatic overgrowths on speleothems (POS) provide detailed rates of Late Holocene sea-level rise in Mallorca. Statistical analysis indicates that sea level rose locally by 0.

Radon Hazard in Central Italy: Comparison among Areas with Different Geogenic Radon Potential.

Radon (Rn) is a natural radioactive gas formed in rocks and soil by the decay of its parent nuclide (238-Uranium). The rate at which radon migrates to the surface, be it along faults or directly emanated from shallow soil, represents the Geogenic Radon Potential (GRP) of an area. Considering that the GRP is often linked to indoor radon risk levels, we have conducted multi-disciplinary research to: (i) define local GRPs and investigate their relationship with associated indoor Rn levels; (ii) evaluate inhaled radiation dosages and the associated risk to the inhabitants; and (iii) define radon priority areas (RPAs) as required by the Directive 2013/59/Euratom.

Carrier and dilution effects of CO on thoron emissions from a zeolitized tuff exposed to subvolcanic temperatures.

Radon (Rn) and thoron (Rn) are two isotopes belonging to the noble gas radon () that is frequently employed for the geochemical surveillance of active volcanoes. Temperature gradients operating at subvolcanic conditions may induce chemical and structural modifications in rock-forming minerals and their related Rn-Rn emissions. Additionally, CO fluxes may also contribute enormously to the transport of radionuclides through the microcracks and pores of subvolcanic rocks.

Deep versus shallow sources of CO and Rn from a multi-parametric approach: the case of the Nisyros caldera (Aegean Arc, Greece).

Estimating the quantity of CO diffusively emitted from the Earth's surface has important implications for volcanic surveillance and global atmospheric CO budgets. However, the identification and quantification of non-hydrothermal contributions to CO release can be ambiguous. Here, we describe a multi-parametric approach employed at the Nisyros caldera, Aegean Arc, Greece, to assess the relative influence of deep and shallow gases released from the soil.

Transient to stationary radon (Rn) emissions from a phonolitic rock exposed to subvolcanic temperatures.

Rock substrates beneath active volcanoes are frequently subjected to temperature changes caused by the input of new magma from the depth and/or the intrusion of magma bodies of variable thickness within the subvolcanic rocks. The primary effect of the influx of hot magma is the heating of surrounding host rocks with the consequent modification of their physical and chemical properties. To assess mobilization in subvolcanic thermal regimes, we have performed radon (Rn) thermal experiments on a phonolitic lava exposed to temperatures in the range of 100-900°C.