Abstract Tandem in situ and isotope dilution U-Pb analysis of zircons from pyroclastic volcanic rocks both glacial non-glacial sedimentary strata the Pocatello Formation (Idaho, northwestern USA) provides new age constraints on Cryogenian glaciation North American Cordillera. Two dacitic tuffs sampled within glacigenic lower diamictite interval Scout Mountain Member yield high-precision chemica...

The Tolhuaca hydrothermal system is one of the few attested geothermal resources in Chile. While recent investigations provided some insights into depth and temperature reservoirs chemical mineralogical evolution system, little still known about CO2 degassing local shallow control fluid pathways. Here, we document soil distributions southern part at its northern fumaroles, provide a first estim...

This work describes the structural and lithological controls that affect distribution, orientation, precipitation mechanism of mineralization in Martinetas district, from context analysis role played by geological units host mineralization. is a low sulfidation epithermal gold silver mining district located northeastern sector Deseado Massif, Argentina. The characterized numerous quartz veins, ...

Abstract. Gravitational instabilities can be significant threats to populations and infrastructure. For hazard assessment, it is important estimate the geometry volume of potential unstable masses. This characterization particularly difficult in volcanic contexts due succession deposition erosion phases. Indeed, results complex layering geometries which interfaces between geological layers may ...