Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile

The environmental geochemical behaviour of the rhyolitic ashes from the 2008 eruption of Chaitén volcano, Southern Chile, has been studied. After the bulk characterisation, the potential contribution to the regional geochemical fluxes was examined using: i) single batch leaching tests to provide a r...

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Autores principales:	Amigo, Alejandro E., Caselli, Alberto T.
Publicado:	2012
Materias:	Batch leaching Chaitén Column leaching Trace elements Volcanic ash Column experiments Cristobalites Environmental concerns Fast dissolutions Fine-grained components Geochemical hazard Glass dissolution Leaching experiments Major and trace elements Mass balance Rapid screening Rhyolitic Toxic trace elements Cesium Concrete aggregates Dissolution Experiments Geochemistry Leaching Lead Manganese Rubidium Silica Silicate minerals Zirconium Volcanoes aluminum antimony barium cerium cesium chromium cobalt gallium iron lithium magnesium manganese molybdenum nickel niobium phosphorus potassium rubidium scandium silicon silicon dioxide sodium sodium chloride strontium titanium vanadium yttrium zirconium cristobalite dissolution mass balance rhyolite trace element volcanic ash volcanic eruption volcanology aerosol article biochemical composition bioleaching Chile concentration (parameters) controlled study environmental impact assessment environmental monitoring geochemical analysis geographic distribution grain hydrolysis nonhuman pH measurement porosity priority journal scanning electron microscopy social problem surface property X ray diffraction Chaiten Volcano Los Lagos Southern Volcanic Zone
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00489697_v425_n_p75_Ruggieri http://hdl.handle.net/20.500.12110/paper_00489697_v425_n_p75_Ruggieri
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	paper:paper_00489697_v425_n_p75_Ruggieri2023-06-08T15:05:42Z Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile Amigo, Alejandro E. Caselli, Alberto T. Batch leaching Chaitén Column leaching Trace elements Volcanic ash Batch leaching Column experiments Column leaching Cristobalites Environmental concerns Fast dissolutions Fine-grained components Geochemical hazard Glass dissolution Leaching experiments Major and trace elements Mass balance Rapid screening Rhyolitic Toxic trace elements Volcanic ash Cesium Concrete aggregates Dissolution Experiments Geochemistry Leaching Lead Manganese Rubidium Silica Silicate minerals Trace elements Zirconium Volcanoes aluminum antimony barium cerium cesium chromium cobalt gallium iron lithium magnesium manganese molybdenum nickel niobium phosphorus potassium rubidium scandium silicon silicon dioxide sodium sodium chloride strontium titanium vanadium yttrium zirconium cristobalite dissolution mass balance rhyolite trace element volcanic ash volcanic eruption volcanology aerosol article biochemical composition bioleaching Chile concentration (parameters) controlled study dissolution environmental impact assessment environmental monitoring geochemical analysis geographic distribution grain hydrolysis nonhuman pH measurement porosity priority journal scanning electron microscopy social problem surface property volcanic ash X ray diffraction Chaiten Volcano Chile Los Lagos Southern Volcanic Zone The environmental geochemical behaviour of the rhyolitic ashes from the 2008 eruption of Chaitén volcano, Southern Chile, has been studied. After the bulk characterisation, the potential contribution to the regional geochemical fluxes was examined using: i) single batch leaching tests to provide a rapid screening of the implied major and trace elements; and ii) column experiments to evaluate the temporal mobility of leached elements. The environmental concerns of these ashes are related to the fine grained component present in each sample (independent of distance from the source), in particular the presence of cristobalite, and the geochemical hazards posed by ash-water interaction. Leaching experiments show the fast dissolution of surface salts and aerosols, which dominate over glass dissolution during the first steps of the ash-water interaction. Chaitén ashes could transfer to the environment more than 1×10 10g or 10,000metric tonnes (mt) of Cl, S, Ca, Na, Si, and K; between 1000 and 10,000mt of F, Mg, and Al; between 100 and 1000mt of As, Pb, P, Fe, Sr, Zn, Mn, and Br; between 10 and 100mt of Ba, Li, Ti, Ni, Nb, Cu, Rb, Zr, V, Mo, Co, and Sc; and less than 10mt of Cr, Sb, Ce, Ga, Cs, and Y. These results show the fertilising potential of the ashes (e.g., providing Ca and Fe) but also the input of potentially toxic trace elements (e.g., F and As) in the regional geochemical mass balance. The Chaitén results evidence lower potentials for poisoning and fertilising than low silica ashes due to the lower contents released of practically all elements. © 2012 Elsevier B.V. Fil:Amigo, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Caselli, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00489697_v425_n_p75_Ruggieri http://hdl.handle.net/20.500.12110/paper_00489697_v425_n_p75_Ruggieri
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Batch leaching Chaitén Column leaching Trace elements Volcanic ash Batch leaching Column experiments Column leaching Cristobalites Environmental concerns Fast dissolutions Fine-grained components Geochemical hazard Glass dissolution Leaching experiments Major and trace elements Mass balance Rapid screening Rhyolitic Toxic trace elements Volcanic ash Cesium Concrete aggregates Dissolution Experiments Geochemistry Leaching Lead Manganese Rubidium Silica Silicate minerals Trace elements Zirconium Volcanoes aluminum antimony barium cerium cesium chromium cobalt gallium iron lithium magnesium manganese molybdenum nickel niobium phosphorus potassium rubidium scandium silicon silicon dioxide sodium sodium chloride strontium titanium vanadium yttrium zirconium cristobalite dissolution mass balance rhyolite trace element volcanic ash volcanic eruption volcanology aerosol article biochemical composition bioleaching Chile concentration (parameters) controlled study dissolution environmental impact assessment environmental monitoring geochemical analysis geographic distribution grain hydrolysis nonhuman pH measurement porosity priority journal scanning electron microscopy social problem surface property volcanic ash X ray diffraction Chaiten Volcano Chile Los Lagos Southern Volcanic Zone
spellingShingle	Batch leaching Chaitén Column leaching Trace elements Volcanic ash Batch leaching Column experiments Column leaching Cristobalites Environmental concerns Fast dissolutions Fine-grained components Geochemical hazard Glass dissolution Leaching experiments Major and trace elements Mass balance Rapid screening Rhyolitic Toxic trace elements Volcanic ash Cesium Concrete aggregates Dissolution Experiments Geochemistry Leaching Lead Manganese Rubidium Silica Silicate minerals Trace elements Zirconium Volcanoes aluminum antimony barium cerium cesium chromium cobalt gallium iron lithium magnesium manganese molybdenum nickel niobium phosphorus potassium rubidium scandium silicon silicon dioxide sodium sodium chloride strontium titanium vanadium yttrium zirconium cristobalite dissolution mass balance rhyolite trace element volcanic ash volcanic eruption volcanology aerosol article biochemical composition bioleaching Chile concentration (parameters) controlled study dissolution environmental impact assessment environmental monitoring geochemical analysis geographic distribution grain hydrolysis nonhuman pH measurement porosity priority journal scanning electron microscopy social problem surface property volcanic ash X ray diffraction Chaiten Volcano Chile Los Lagos Southern Volcanic Zone Amigo, Alejandro E. Caselli, Alberto T. Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
topic_facet	Batch leaching Chaitén Column leaching Trace elements Volcanic ash Batch leaching Column experiments Column leaching Cristobalites Environmental concerns Fast dissolutions Fine-grained components Geochemical hazard Glass dissolution Leaching experiments Major and trace elements Mass balance Rapid screening Rhyolitic Toxic trace elements Volcanic ash Cesium Concrete aggregates Dissolution Experiments Geochemistry Leaching Lead Manganese Rubidium Silica Silicate minerals Trace elements Zirconium Volcanoes aluminum antimony barium cerium cesium chromium cobalt gallium iron lithium magnesium manganese molybdenum nickel niobium phosphorus potassium rubidium scandium silicon silicon dioxide sodium sodium chloride strontium titanium vanadium yttrium zirconium cristobalite dissolution mass balance rhyolite trace element volcanic ash volcanic eruption volcanology aerosol article biochemical composition bioleaching Chile concentration (parameters) controlled study dissolution environmental impact assessment environmental monitoring geochemical analysis geographic distribution grain hydrolysis nonhuman pH measurement porosity priority journal scanning electron microscopy social problem surface property volcanic ash X ray diffraction Chaiten Volcano Chile Los Lagos Southern Volcanic Zone
description	The environmental geochemical behaviour of the rhyolitic ashes from the 2008 eruption of Chaitén volcano, Southern Chile, has been studied. After the bulk characterisation, the potential contribution to the regional geochemical fluxes was examined using: i) single batch leaching tests to provide a rapid screening of the implied major and trace elements; and ii) column experiments to evaluate the temporal mobility of leached elements. The environmental concerns of these ashes are related to the fine grained component present in each sample (independent of distance from the source), in particular the presence of cristobalite, and the geochemical hazards posed by ash-water interaction. Leaching experiments show the fast dissolution of surface salts and aerosols, which dominate over glass dissolution during the first steps of the ash-water interaction. Chaitén ashes could transfer to the environment more than 1×10 10g or 10,000metric tonnes (mt) of Cl, S, Ca, Na, Si, and K; between 1000 and 10,000mt of F, Mg, and Al; between 100 and 1000mt of As, Pb, P, Fe, Sr, Zn, Mn, and Br; between 10 and 100mt of Ba, Li, Ti, Ni, Nb, Cu, Rb, Zr, V, Mo, Co, and Sc; and less than 10mt of Cr, Sb, Ce, Ga, Cs, and Y. These results show the fertilising potential of the ashes (e.g., providing Ca and Fe) but also the input of potentially toxic trace elements (e.g., F and As) in the regional geochemical mass balance. The Chaitén results evidence lower potentials for poisoning and fertilising than low silica ashes due to the lower contents released of practically all elements. © 2012 Elsevier B.V.
author	Amigo, Alejandro E. Caselli, Alberto T.
author_facet	Amigo, Alejandro E. Caselli, Alberto T.
author_sort	Amigo, Alejandro E.
title	Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
title_short	Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
title_full	Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
title_fullStr	Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
title_full_unstemmed	Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile
title_sort	contribution of volcanic ashes to the regional geochemical balance: the 2008 eruption of chaitén volcano, southern chile
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00489697_v425_n_p75_Ruggieri http://hdl.handle.net/20.500.12110/paper_00489697_v425_n_p75_Ruggieri
work_keys_str_mv	AT amigoalejandroe contributionofvolcanicashestotheregionalgeochemicalbalancethe2008eruptionofchaitenvolcanosouthernchile AT casellialbertot contributionofvolcanicashestotheregionalgeochemicalbalancethe2008eruptionofchaitenvolcanosouthernchile
_version_	1768542497832697856

Contribution of volcanic ashes to the regional geochemical balance: The 2008 eruption of Chaitén volcano, Southern Chile

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