Remote Sensing and Mineralogical Analyses: A First Application to the Highly Active Hydrothermal Discharge Area of Pisciarelli in the Campi Flegrei Volcanic Field (Italy)

This paper explored the relationship between acidic sulfate alteration, geostructural frameworks, and geomorphological changes that can be observed in active volcanic hydrothermal systems. The target area was Pisciarelli Campi Flegrei volcano, where diffuse alteration dynamics have been growing since 2012, causing a progressive deterioration of landscapes. Terrestrial Laser Scanner (TLS), photogrammetry proximity survey, geological field work, mineralogical geochemical analysis with Optical Microscopy (OM), electron microscopy, energy dispersive micro-analysis (BSEM-EDS) X-ray Powder Diffraction (XRPD) to characterize (and monitor) altered rock outcrops were repeatedly carried out area. We present multi-temporal acquisition referring Scanning (TLS) datasets (2014 survey) 3D-point clouds obtained from Structure for Motion (SfM) (2021 high-resolution digital camera aimed at evaluating volumetric on mostly damaged fault scarp. For each we vertical Digital Elevation Model (DEM) true color RGB orthomosaic provided setting different times its evolution through their comparison. Changing sites examined characterized purposes. investigated slope lost up about 4 m3 deposits 2014 2021, related induced by gas emissions meteoric infiltration. Our methodological approach appears promising evaluate rock-fall susceptibility solfataric terrains subjected dynamics.