Magmatic evolution of the Puyehue–Cordón Caulle Volcanic Complex (40° S), Southern Andean Volcanic Zone: From shield to unusual rhyolitic fissure volcanism

Lara, Luis E.; Moreno, H.; Naranjo, José A.; Matthews, Simon; Arce, Carlos Pérez de

doi:10.1016/j.jvolgeores.2006.04.010

Cited by 86 publications

(65 citation statements)

References 41 publications

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“…3). Este masivo establecimiento de N. pumilio se presume ocurrió posterior a la depositación de tefra luego de la erupción del CVPCC en 1921-1922 (índice de explosividad volcánica = 3; Lara et al 2006) que probablemente produjo una gran mortalidad de individuos en el bosque. En el caso de BP1, la presencia de numerosos troncos caídos y desraizados (> 45 cm de DAP) en dirección a la pendiente sugieren además una caída masiva por viento de la cohorte previa, luego de la cual se estableció una cohorte de N. pumilio bajo un dosel relativamente abierto de árboles de Nothofagus spp.…”

Section: Establecimiento Estructura Y Composición Arbóreaunclassified

Caída de tefra y su influencia sobre la estructura y dinámica de los bosques andinos de Nothofagus en el Parque Nacional Puyehue, Chile

Montiel

González

Crisafulli

2016

Anales Instituto Patagonia (Chile)

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Section: Establecimiento Estructura Y Composición Arbóreaunclassified

Caída de tefra y su influencia sobre la estructura y dinámica de los bosques andinos de Nothofagus en el Parque Nacional Puyehue, Chile

Montiel

González

Crisafulli

2016

Anales Instituto Patagonia (Chile)

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“…This complex had previously erupted 51 yr earlier, on 24 May 1960, following the M w 9.5 great Chilean earthquake about 240 km to the west (Lara et al, 2004). Gerlach et al (1988) and Lara et al (2006) presented a summary of recent eruptions of this volcanic complex, while Singer et al (2008) presented its long-term history.…”

mentioning

confidence: 99%

The environmental impact of the Puyehue–Cordon Caulle 2011 volcanic eruption on Buenos Aires

Raga¹,

Baumgardner

Ulke

et al. 2013

Nat. Hazards Earth Syst. Sci.

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Abstract. On 4 June 2011, the volcanic complex PuyehueCordon Caulle located in the Chilean Andes erupted, producing a plume of gases and particles that eventually circled the Southern Hemisphere, disrupting air travel and depositing ash in large quantities. On eight occasions, the plume passed over the city of Buenos Aires, Argentina, leading local authorities to close the two international airports.The eruption occurred during an on-going field campaign when measurements of the properties of atmospheric aerosol particles were being made in Buenos Aires as part of a yearlong study of the concentration and optical properties of aerosol at one site in the city. The suite of instruments deployed in Buenos Aires were not tailored to measurements of volcanic ash, but were designed to characterize urban conditions. Nevertheless, these measurements were analysed for periods when vertical profiles of aerosol backscatter, made with a ceilometer, clearly showed the presence of the volcano plume over the research site and resulted in airport closure.Aerosol optical thickness derived from AERONET, MODIS and a ceilometer at our research site, all show enhanced values clearly indicating that the three platforms identified the volcanic plume simultaneously. However, a quantitative comparison of the different estimates proves difficult, suggesting large spatial and temporal variability of the plume.Our results indicate that the number concentration of condensation nuclei (CN), the mass concentration of particlebound polycyclic aromatic hydrocarbons (PPAH) and the light absorption coefficient exceeded the average background values by more than one standard deviation during the events of volcanic plume. The anomalous concentrations of CN suggest new particle formation, presumably from the conversion of SO 2 , while the anomalous concentrations of PPAH may come from the uptake of PAHs on the plume particles or from chemical reactions on the surface of plume particles. The anomalous absorption coefficients indicate that plume particles may contain certain compounds that can absorb radiation at 550 nm. Another possible explanation consistent with the observations is the scavenging of black carbon from urban sources as the plume descends through the boundary layer to the surface. In addition, the volcanic plume influenced the local meteorology resulting in a decrease of the temperature when compared to the average temperature during days with no plume present.

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“…with a fissure system between them named Cord on Caulle (1793 m a.s.l.) (Lara et al, 2006). The PCCVC is one of the most active volcanic complexes in the Southern Andes with eight eruptions occurring in the twentieth century (Lara et al, 2006).…”

Section: Description Of the Puyehue-cord On Caulle Volcanic Complex Amentioning

confidence: 99%

“…Most of this region is impacted by eruptions from the Chilean Southern Volcanic Zone (33 e46 S) (Lara et al, 2006;Wilson et al, 2012) which has 500 active volcanoes, 60 of which have historical records during the last 450 years (300 eruptions in total, Servicio Nacional de Geología y Minería de Chile). Dominant winds are westerly and ash fall impacts the steppe that occupies most of Argentinean Patagonia.…”

Section: Introductionmentioning

confidence: 99%

“…Dominant winds are westerly and ash fall impacts the steppe that occupies most of Argentinean Patagonia. Recently (1991Recently ( , 2008 two Chilean volcanoes erupted explosively affecting the Argentinean steppe (Besoain et al, 1997;Lara et al, 2006;Martin et al, 2009). Also the Puyehue-Cord on Caulle volcanic complex erupted on 24 May 1960 following an earthquake (magnitude 9.5, the largest measured earthquake in history) on 22 May.…”

Section: Introductionmentioning

confidence: 99%

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Effects of volcanic ash deposition on the early recovery of gap vegetation in Northwestern Patagonian steppes

Ghermandi

Gonzalez

Franzese

et al. 2015

Journal of Arid Environments

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Magmatic evolution of the Puyehue–Cordón Caulle Volcanic Complex (40° S), Southern Andean Volcanic Zone: From shield to unusual rhyolitic fissure volcanism

Cited by 86 publications

References 41 publications

Caída de tefra y su influencia sobre la estructura y dinámica de los bosques andinos de Nothofagus en el Parque Nacional Puyehue, Chile

Caída de tefra y su influencia sobre la estructura y dinámica de los bosques andinos de Nothofagus en el Parque Nacional Puyehue, Chile

The environmental impact of the Puyehue–Cordon Caulle 2011 volcanic eruption on Buenos Aires

Effects of volcanic ash deposition on the early recovery of gap vegetation in Northwestern Patagonian steppes

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