Limpar
81 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Artigo Revisado por pares

E. Roulleau, Daniele Tardani, Ivan Vlastelić, Nicolas Vinet, Juan Sánchez-Ávila, Yuji Sano, Naoto Takahata,

... the Southern Volcanic Zone (Chile-Argentina), the active Caviahue-Copahue Volcanic Complex (CCVC) is approximately 30 km ... major stages: the 5–4 Ma old Ante-Caviahue series, the 2.6 Ma old Caviahue series, and Copahue volcano that has been active ... whereas the mantle wedge contribution was strongest in Caviahue and Ante-Caviahue magmatism. The light rare earth element-enriched nature of Copahue rocks (compared to Caviahue and Ante-Caviahue rocks) is more likely due to incorporation of ... to 1.42 ± 0.17‰) of Copahue and Caviahue magmas indicates the contribution of a mature slab ...

Tópico(s): High-pressure geophysics and materials

2017 - Elsevier BV | Chemical Geology

Artigo Revisado por pares

Juan Manuel Díaz Cabrera, Patricia E. Garcı́a, Fernando Pedrozo, Claudia Queimaliños,

The Agrio-Caviahue is a natural stream-lake system composed of the Upper Agrio River (UAR) -Lake Caviahue-Lower Agrio River (LAR). The system has a ... of the fluorometer. The unique features of Agrio-Caviahue DOM resemble those found in DOM from Yellowstone ...

Tópico(s): Marine Biology and Ecology Research

2020 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy

Artigo Acesso aberto Revisado por pares

Gustavo Baffico,

... climate in the deep and extremely acid Lake Caviahue have been studied in order to better understand ... of the water column. Optical climate of Lake Caviahue is not typical of high elevation lakes but ... Living organisms are protected of UVR because Lake Caviahue waters are a shield against UV-B.

Tópico(s): Heavy metals in environment

2013 - Elsevier BV | Limnologica

Artigo Revisado por pares

Fernando Pedrozo, Mónica M. Diaz, Pedro Temporetti, Gustavo Baffico, Sara Guadalupe Beamud,

... ABSTRACT. Limnology of an acidic system: Agrio River-Caviahue Lake, Province of Neuquen, Argentina: The Rio Agrio-Lago Caviahue system which constitutes a unique case in South ... other Andean lakes of the Patagonia, the Lake Caviahue experiments short periods of variations in pH and ...

Tópico(s): Mine drainage and remediation techniques

2010 - | Ecología Austral

Artigo Revisado por pares

Fernando Pedrozo, Pedro Temporetti, Guadalupe Beamud, Mónica M. Diaz,

... of the trophic state of the acidic Lake Caviahue, located at North Patagonia, Argentina. Acidic water systems ... or pit lakes in the United States. Lake Caviahue received a very high P load (42–192 ... contribution of nutrients and acidity to the Lake Caviahue. The lake is oligotrophic in terms of CHLa. ...

Tópico(s): Groundwater and Isotope Geochemistry

2008 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Acesso aberto Revisado por pares

Juan Manuel Díaz Cabrera, Pedro Temporetti, Fernando Pedrozo,

Lake Caviahue, in Patagonia (Argentina), is a very acid water body (Patagonia, Argentina) due to the influx of volcanic ... metal mobility in the acidic sediments of lake Caviahue is very low.

Tópico(s): Geochemistry and Geologic Mapping

2020 - National Geology and Mining Service | Andean geology

Artigo Acesso aberto Revisado por pares

Giovanni Chiodini, Carlo Cardellini, María Clara Lamberti, Mariano Agusto, Alberto Caselli, Caterina Liccioli, Giancarlo Tamburello, Franco Tassi, Orlando Vaselli, Stefano Caliro,

The north-western sector of Caviahue caldera (Argentina), close to the active volcanic system of Copahue, is characterized by the presence of several hydrothermal sites that host ... active magmatic intrusion beneath this portion of the Caviahue caldera.

Tópico(s): earthquake and tectonic studies

2015 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Revisado por pares

Mariano Agusto, Franco Tassi, Alberto Caselli, Orlando Vaselli, Dmitri Rouwet, Bruno Capaccioni, Stefano Caliro, Giovanni Chiodini, Thomas H. Darrah,

Copahue volcano is part of the Caviahue–Copahue Volcanic Complex (CCVC), which is located in the southwestern sector of the Caviahue volcano-tectonic depression (Argentina–Chile). This depression is ...

Tópico(s): Geochemistry and Geologic Mapping

2013 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Revisado por pares

Johan C. Varekamp,

Lake Caviahue (northern Patagonia, Argentina) is a large glacial lake acidified by volcanic fluids from Copahue volcano. The lake ... 2006, including the eruptive period of 2000. Lake Caviahue waters evolved over time, with the most concentrated ...

Tópico(s): Geological and Geochemical Analysis

2008 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Revisado por pares

Matthias Koschorreck, Katrin Wendt‐Potthoff, Burkhard Scharf, Hans H. Richnow,

... biogeochemistry of methane in the sediments of Lake Caviahue was examined by geochemical analysis, microbial activity assays ... indicate that methanogenesis in the sediment of Lake Caviahue was active below 40 cm depth. At that ...

Tópico(s): Atmospheric and Environmental Gas Dynamics

2008 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Acesso aberto Revisado por pares

Sara Guadalupe Beamud, Mónica M. Díaz, Fernando Pedrozo,

... 2004, the naturally-acidic (pH∼2.2) Lake Caviahue was sampled for conductivity, temperature, oxygen, light, nutrients, ... of nitrogen limitation on the phytoplankton yield. Lake Caviahue is characterized by its low transparency, CO2, and ...

Tópico(s): Aquatic Invertebrate Ecology and Behavior

2007 - Elsevier BV | Limnologica

Artigo Acesso aberto Revisado por pares

Daniel Melnick, Andrés Folguera, Víctor A. Ramos,

... volcanic complex in an oblique subduction setting: the Caviahue caldera Copahue volcano (CAC) of the Andean margin. ... with the opening of the 20 × 15 km Caviahue pull-apart caldera; Las Mellizas volcano formed inside ...

Tópico(s): earthquake and tectonic studies

2006 - Elsevier BV | Journal of South American Earth Sciences

Artigo Revisado por pares

Christopher H. Gammons, Scott A. Wood, Fernando Pedrozo, Johan C. Varekamp, Bethany J. Nelson, Christopher L. Shope, Gustavo Baffico,

... Agrio (pH < 2), two depth profiles through Lake Caviahue (a large glacially-carved lake with pH ∼ 2. ... of the Lower Rio Agrio downstream of Lake Caviahue where pH increased due to the influx of ... a weak middle REE enrichment trend in Lake Caviahue, to being weakly negative in the lower reaches ...

Tópico(s): Mine drainage and remediation techniques

2005 - Elsevier BV | Chemical Geology

Artigo

Luciana Sánchez, Rodrigo González,

... Migration. Implications on Local Development - The Case of Caviahue, Argentina. This paper analyzes the implications of amenity ... taking as case study area the village of Caviahue Neuquen Province, Argentina. From a qualitative approach through ... to understand the stages of tourism investment in Caviahue and its implications in the destination development. The ... of negative effects of amenity migration processes in Caviahue tourist development and competitiveness. A number of political, ...

Tópico(s): Cruise Tourism Development and Management

2011 - | Estudios y perspectivas en turismo

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Maurício Barcelos Haag, Carlos Augusto Sommer, J.F. Savian, Alberto Caselli, Thiago Ribas Moncinhatto, Gelvam A. Hartmann, Michael H. Ort, Wilbor Poletti, Ricardo I.F. Trindade,

... massive ignimbrites. Located in the Southern Andes, the Caviahue Copahue Volcanic Complex (CCVC) comprises one of the ... path also suggests the PDC overrun of the Caviahue Caldera topographic rim. This study highlights the application ...

Tópico(s): Geophysical and Geoelectrical Methods

2021 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Revisado por pares

Francisco L. Massello, Edgardo Donati,

... an acidic river and a hot spring of Caviahue-Copahue volcanic environment. The indigenous microbial communities were ...

Tópico(s): Microbial Fuel Cells and Bioremediation

2020 - Elsevier BV | Environmental Pollution

Artigo Acesso aberto

Bubach Debora Fabiana, Catan Soledad Perez, Messuti Maria Ines, Arribére Maria Angelica, Guevara Sergio Ribeiro,

... activity were higher for the volcanic complexes: Copahue-Caviahue and Puyehue-Cordon-Caulle (2800-12000 µg/g) ...

Tópico(s): Geochemistry and Geologic Mapping

2020 - | Annals of Environmental Science and Toxicology

Artigo Acesso aberto Brasil Produção Nacional Revisado por pares

Thiago Ribas Moncinhatto, Maurício Barcelos Haag, Gelvam A. Hartmann, J.F. Savian, Wilbor Poletti, Carlos Augusto Sommer, Alberto Caselli, Ricardo I.F. Trindade,

... Plio-Pleistocene lava flows and ignimbrites of the Caviahue-Copahue Volcanic Complex in the Andean Southern Volcanic ...

Tópico(s): Geological and Geochemical Analysis

2019 - Oxford University Press | Geophysical Journal International

Artigo Revisado por pares

Graciana Willis-Poratti, Iván Ñancucheo, Sabrina Hedrich, Alejandra Giaveno, Edgardo Donati, D. Barrie Johnson,

ABSTRACT The geothermal Copahue-Caviahue (GCC) system (Argentina) is an extreme acidic environment, dominated by the activity of Copahue volcano. Environments characterised by low pH ... in the acidic sediments from the geothermal Copahue-Caviahue system.

Tópico(s): Calcium Carbonate Crystallization and Inhibition

2019 - Oxford University Press | FEMS Microbiology Ecology

Artigo Revisado por pares

María Clara Lamberti, Nicolás C. Vigide, Stefanía Venturi, Mariano Agusto, Daniel Yagupsky, Diego Winocur, Hernán Barcelona, María Laura Vélez, Carlo Cardellini, Franco Tassi,

... and its structural control was examined in the Caviahue – Copahue Volcanic Complex, over an area of approximately ...

Tópico(s): CO2 Sequestration and Geologic Interactions

2019 - Elsevier BV | Journal of Volcanology and Geothermal Research

Artigo Acesso aberto Revisado por pares

Sara Guadalupe Beamud, Bernhard Karrasch, Fernando Pedrozo, Mónica M. Díaz,

... investigated whether algal osmotrophy in naturally acidic Lake Caviahue is an important process for acquisition of organic ... main photosynthetic process of the phytoplankton in Lake Caviahue, which helps to overcome the scarcity of light ...

Tópico(s): Diatoms and Algae Research

2014 - Springer Science+Business Media | Limnology

Artigo Acesso aberto Revisado por pares

Graciana Willis-Poratti, Sabrina Hedrich, Iván Ñancucheo, D. Barrie Johnson, Edgardo Donati,

... Agua del Limón (AL1) present at the geothermal Caviahue-Copahue system using a combination of molecular and ...

Tópico(s): Minerals Flotation and Separation Techniques

2013 - Trans Tech Publications | Advanced materials research

Artigo Revisado por pares

Victoria López‐Rodas, Mónica Rouco, S. Sánchez‐Fortún, Antonio Flores‐Moya, Eduardo Costas,

... to moderate stressful conditions) of the Agrio River–Caviahue Lake system (Neuquén, Argentina). Both experimental strains were ...

Tópico(s): Microbial Community Ecology and Physiology

2011 - Wiley | Journal of Phycology

Artigo Revisado por pares

P. Chiacchiarini, L. Lavalle, Alejandra Giaveno, Edgardo Donati,

... different hot springs belonging to the geothermal Copahue–Caviahue system (Neuquén Argentina). This extreme environment is characterized ...

Tópico(s): Mine drainage and remediation techniques

2010 - Elsevier BV | Hydrometallurgy

Artigo Acesso aberto Revisado por pares

Sara Guadalupe Beamud, Mónica M. Díaz, Nora Baccalá, Fernando Pedrozo,

... phytoplankton and trophic status. Planktonic community in Lake Caviahue is somewhat diverse in spite of the low ...

Tópico(s): Diatoms and Algae Research

2009 - Elsevier BV | Limnologica

Artigo Acesso aberto Revisado por pares

Gabriel Russo, Diego Libkind, José Paulo Sampaio, María Rosa van Broock,

The Rio Agrio and Lake Caviahue system (RAC), in Northwestern Patagonia, is a natural acidic environment. The aims of this study were to characterize the yeast community ...

Tópico(s): Fermentation and Sensory Analysis

2008 - Oxford University Press | FEMS Microbiology Ecology

Artigo Revisado por pares

Juan Manuel Díaz Cabrera, Mónica M. Díaz, Sabina Schultz, Pedro Temporetti, Fernando Pedrozo,

... sampling sites of the naturally-occurring acidic Lake Caviahue (Patagonia, Argentina). Additionally, water column iron was modeled ...

Tópico(s): Geochemistry and Elemental Analysis

2016 - Elsevier BV | Journal of Volcanology and Geothermal Research

Capítulo de livro

Alejandro Rodríguez, Johan C. Varekamp, Manfred J. van Bergen, Tristan Kading, P.B.H. Oonk, Christopher H. Gammons, M. S. Gilmore,

... routines. The lower part of the watershed (Lake Caviahue and the Lower Río Agrio) have abundant deposits ...

Tópico(s): Paleontology and Stratigraphy of Fossils

2015 - Springer Nature | Active volcanoes of the world