Gabriela Velásquez

Chalcophile element degassing at an active continental arc volcano

Emily Mason, Marie Edmonds, Samantha J. Hammond, Evgenia Ilyinskaya et autres

Arc volcanoes are significant natural sources of trace chalcophile elements to the atmosphere via gas and aerosol plumes. Villarrica volcano, part of the Andean arc, erupts basaltic magmas and is characterised by a persistent volcanic gas plume and therefore presents an opportunity …

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Eleven‐Year Survey of the Magmatic‐Hydrothermal Fluids From Peteroa Volcano: Identifying Precursory Signals of the 2018–2019 Eruption

Mariano R. Agusto, María Clara Lamberti, Franco Tassi, Fabricio Carbajal et autres

Abstract Over the past decade, we have conducted geochemical and isotopic monitoring of the fumarolic gases of the Peteroa volcano (Argentina‐Chile). Using the resulting data set, we constructed a conceptual model that describes the evolution of the magmatic‐hydrothermal system and identifies precursory …

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Composition and Potential Functions of Rhizobacterial Communities in a Pioneer Plant from Andean Altiplano

Qian Zhang, Macarena M. Araya, Marcia Astorga‐Eló, Gabriela Velásquez et autres

Plant microbiota that associate with pioneer plants are essential to their growth and adaptation to harsh conditions found in the Central Volcanic Zone of the Andes. In this sense, the rhizosphere of pioneer species represents a unique opportunity to examine how bacterial …

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Synoptic analysis of a decade of daily measurements of SO 2 emission in the troposphere from volcanoes of the global ground-based Network for Observation of Volcanic and Atmospheric Change

Santiago Arellano, Bo Galle, Fredy Erlingtton Apaza Choquehuayta, Geoffroy Avard et autres

Volcanic plumes are common and far-reaching manifestations of volcanic activity during and between eruptions. Observations of the rate of emission and composition of volcanic plumes are essential to recognize and, in some cases, predict the state of volcanic activity. Measurements of the …

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Supplementary material to "Synoptic Analysis of a Decade of Daily Measurements of SO 2 Emission in the Troposphere from Volcanoes of the Global Ground-Based Network for Observation of Volcanic and Atmospheric Change"

Santiago Arellano, Bo Galle, Fredy Erlingtton Apaza Choquehuayta, Geoffroy Avard et autres

Synoptic Analysis of a Decade of Daily Measurements of SO 2 Emission in the Troposphere from Volcanoes of the Global Ground-Based Network for Observation of Volcanic and Atmospheric Change

Santiago Arellano, Bo Galle, Fredy Erlingtton Apaza Choquehuayta, Geoffroy Avard et autres

Abstract. Volcanic plumes are common and far-reaching manifestations of volcanic activity during and between eruptions. Observations of the rate of emission and composition of volcanic plumes are essential to recognize, and in some cases predict, the state of volcanic activity. Measurements of …

se, pe, sg, de, cl, co, gb, it, gt, kz, fr, mx, id, ec, us, sv, ni, République démocratique du Congo (code pays fourni par la source)

PROCESOS HIDROGEOQUÍMICOS VINCULADOS A UN AMBIENTE VOLCÁNICO ACTIVO: EL CASO DEL SISTEMA RÍO AGRIO-VOLCÁN COPAHUE

Joaquin Llano, Mariano R. Agusto, Alcira Trinelli, Ana Elisabeth Tufo et autres

El presente trabajo tiene como objetivo analizar el proceso de dilución de las aguas ácidas del sistema volcánico hídrico (SVH) por el ingreso al mismo de las aguas de deshielo (AD) y la posterior precipitación de hidroxisulfatos de hierro (schwertmannita) y aluminio …

Gas emission and composition measurements at two Andean volcanoes - Copahue and Peteroa

Nicole Bobrowski, Jonas Kuhn, María Clara Lamberti, Mariano R. Agusto et autres

Copahue (37.856◦S, 71.159◦W, 2997 m a.s.l.) and Peteroa (35.240oS, 70.570oW, 3603 m a.s.l.) are active strato-volcanos, both located at the border between Argentina and Chile. Copahue volcano is situated on the rim of the large, about 2 Ma old Caviahue caldera. The …

Dynamics of Outgassing and Plume Transport Revealed by Proximal Unmanned Aerial System (UAS) Measurements at Volcán Villarrica, Chile

Emma J. Liu, Kieran T. Wood, Emily Mason, Marie Edmonds et autres

Abstract Volcanic gas emissions are intimately linked to the dynamics of magma ascent and outgassing and, on geological time scales, constitute an important source of volatiles to the Earth's atmosphere. Measurements of gas composition and flux are therefore critical to both volcano …

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Fluctuación de los niveles de glucosa en sangre, hígado y músculo de tilapia Oreochromis niloticus, tras la ingesta de alimentos

Yessica Sorayda Castillo Arauz, Gabriela Velásquez

The aim of this research was to determine the dynamics of blood glucose concentration, liver and muscle of tilapia (Oreochromis niloticus), after food intake. The MSc. Leonel Aguilar Fiallos donated the tilapias. The experiment was performed at the Quinta Yolanda fish farm …

Fluctuación de los niveles de glucosa en sangre, hígado y músculo de tilapia Oreochromis niloticus, tras la ingesta de alimentos.

Yessica Sorayda Castillo Arauz, Gabriela Velásquez

The aim of this research was to determine the dynamics of blood glucose concentration, liver and muscle of tilapia (Oreochromis niloticus), after food intake. The MSc. Leonel Aguilar Fiallos donated the tilapias. The experiment was performed at the Quinta Yolanda fish farm …

A CO 2 ‐gas precursor to the M arch 2015 V illarrica volcano eruption

Alessandro Aiuppa, Marcello Bitetto, Vincenzo Francofonte, Gabriela Velásquez et autres

Abstract We present here the first volcanic gas compositional time‐series taken prior to a paroxysmal eruption of Villarrica volcano (Chile). Our gas plume observations were obtained using a fully autonomous Multi‐component Gas Analyser System (Multi‐GAS) in the 3 month‐long phase of escalating …

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