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Aeolian Remobilisation of Volcanic Ash: Outcomes of a Workshop in the Argentinian Patagonia
(Frontiers Media, 2020-11-27)
During explosive volcanic eruptions, large quantities of tephra can be dispersed and deposited over wide areas. Following deposition, subsequent aeolian remobilisation of ash can potentially exacerbate primary impacts on ...
Complex refractive index of volcanic ash aerosol in the infrared, visible, and ultraviolet
(Optical Society of America, 2020-02)
Very fine silicate-rich volcanic ash, generated by explosive volcanic eruptions, can efficiently be traced downwind with infrared satellite sounders. Their measurements can also be used to derive physical parameters, such ...
Volcanic alert system by lightning detection using the WWLLN - ash cloud monitor
(Pergamon-Elsevier Science Ltd, 2021-06)
Electrical discharges are observed in many volcanic eruptions and they have often been used as indicators of such eruptions. Volcanic lightning is remarkably similar to those produced during thunderstorms and is called ...
Mercury in a geothermal and volcanic area in Patagonia, southern South America
(Elsevier Science, 2019-12)
Mercury and heavy metal contents are monitored using lichens as a tool for evaluation of air pollution. Lichens allow the identification of zones with anthropic impact, pollution hotspots and natural sources of contamination ...
Late Eocene volcanism in North Patagonia (42°30′–43°S): Arc resumption after a stage of within-plate magmatism
(Pergamon-Elsevier Science Ltd, 2018-01)
Mid-Cenozoic widespread arc magmatism in North Patagonia extends from the forearc to the retroarc zones, representing an anomalous large volume when compared to the present-day arc zone and even other past arc configurations. ...
Sustained effects of volcanic ash on biofilm stoichiometry, enzyme activity and community composition in North- Patagonia streams
(Elsevier, 2018-04-15)
Volcanic eruptions are extreme perturbations that affect ecosystems. These events can also produce persistent effects in the environment for several years after the eruption, with increased concentrations of suspended ...
Petrology of the Luingo caldera (SE margin of the Puna plateau): A middle Miocene window of the arc-back arc configuration
(Elsevier Science, 2011-03)
We describe the petrographic characteristics, whole-rock geochemistry and mineral chemistry of rocks from the Pucarilla-Cerro Tipillas Volcanic Complex with emphasis on the rocks belonging to the middle Miocene Luingo ...
Effect of volcanic ash deposition on length and radial growths of a deciduous montane tree (Nothofagus pumilio)
(Wiley Blackwell Publishing, Inc, 2017-02)
Extreme environmental events such as volcanic eruptions can trigger plant responses that largely exceed those recorded for moderate-intensity disturbances. We assessed the effects of the June 2011 eruption of the Puyehue ...
The Marifil Volcanic Complex at Sierra de Pailemán: implications for the Early Jurassic magmatic evolution of the Eastern North Patagonian Region
(Taylor & Francis, 2021-03-02)
The Sinemurian Marifil Volcanic Complex at Sierra de Pailemán, located in the east part of the North Patagonian Region, Argentina, includes five lithofacies and three volcanic events. The volcanic activity begins with ...
Spatial-temporal distribution of volcanism in the 25-28°s segment of the andean central volcanic zone
(Elsevier, 2014-12)
The present contribution describes and analyses the spatial–temporal distribution and main features of the volcanic rocks, with emphasis in pyroclastic deposits, located in the 25–28°S segment of the Central Andes. We built ...