This work studies the feasibility to employ a combination of volcanic ash (natural waste) with
different raw materials in the production of geopolymers: fly ash and mining tailing …

Emission of volcanic gas is thought to be the dominant process by which volatiles transit
from the deep earth to the atmosphere. Volcanic gas emissions, remain poorly constrained …

Over the past two decades, La Soufrière volcano in Guadeloupe has displayed a growing
degassing unrest whose actual source mechanism still remains unclear. Based on new …

We investigate ten of the most recent tephra-fall deposits emplaced between≤ 21 and 2 ka
from the Pacheco stage of Misti volcano, Peru, to elucidate magma dynamics and explosive …

Fumarolic gas survey of dormant volcanoes in hydrothermal activity is crucial to detect
compositional and mass flux changes in gas emissions that are potential precursors of …

Between 38.5 ka cal BP and 32.4 ka cal BP, a dacitic Volcanic Explosivity Index 5 eruption at
Misti volcano emplaced the Sacarosa tephra-fall deposit. Its biotite phenocrysts, fine grain …

To better understand the recent internal structure of Misti volcano, we determined a 3D S-
wave velocity model applying Ambient Noise Tomography (ANT). We used data from 23 …

Volcanic gas emissions from the main low-temperature fumaroles (around 100° C) of one of
the most dangerous volcanoes in the Lesser Antilles, La Soufrière de Guadeloupe, are …

Lava domes result from effusive eruption of high viscosity lava. These viscous lava
extrusions range in shape from flat-topped domes with small height-to-width aspect ratios, to …

We quantified the redox state of magma recorded in volcanic glass particles from an ash-
forming eruption at Bromo volcano, Indonesia, to obtain insights into its degassing process …