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Agricultural impact assessment and management after three widespread tephra falls in Patagonia, South America
(Springer, 2016-06)
Agricultural production is often concentrated in volcanically active or previously active areas where weathered volcanic products form fertile soils. However, this proximity means agriculture is exposed to tephra fall ...
The impact of recent volcanic ash depositions on herbivores in Patagonia: A review
(Australian Rangeland Society, 2016-02)
Volcanic tephra (ejected solids) result in varied impacts on ecosystems and livestock production. The recent Puyehue (2011) and Calbuco (2015) eruptions deposited large amounts of tephra in Chile and Argentina, affecting ...
Petrology, geochemistry, and correlation of tephra deposits from a large early-Holocene eruption of Mentolat volcano, southern Chile
(Pergamon-Elsevier Science Ltd, 2019-03)
Two correlated tephra deposits, each 13 cm thick in the Aisén region of southern Chile, one in a lacustrine sediment core from the Mallín el Toqui (MET) peat bog and another from a subaerial soil exposure ∼10 km to the ...
Fate and agricultural consequences of leachable elements added to the environment from the 2011 Cordón Caulle tephra fall
(Elsevier Science, 2016-11)
The June 2011 eruption of Cordón Caulle volcano, Chile, dispersed tephra over ~ 350,000 km2, including productive agricultural land. This resulted in the death of nearly one million livestock. Two distinct environments ...
Changes of sub-fossil chironomid assemblages associated with volcanic sediment deposition in an Andean lake (38°S), Chile
(Sociedad de Biología de Chile, 2007)
Historical eruptions of Lautaro Volcano and their impacts on lacustrine ecosystems in southern Argentina
(Springer, 2019-06-14)
Lacustrine sediment sequences were obtained from Lagunas Verde and Gemelas Este, two small lakes located east of the southern Patagonian Ice Field and close to the village of El Chaltén, in Argentinian Patagonia. Four ...
Remobilized Cordón Caulle 2011 tephra deposits in north-Patagonian watersheds: Resedimentation at deltaic environments and its implications
(Elsevier Science, 2019-09)
The Argentinean side of the Andean North Patagonia is drained by several fluvio-lacustrine systems flowing eastwards from their headwaters at the Andes mountains towards large glacial lakes. These watersheds are recurrently ...
Insight into the CE 1600 Huaynaputina Plinian tephra, combining the re-analysis of observational datasets with recent methods for tephra dispersal modelling
(Istituto Nazionale di Geofisica e VulcanologiaITA, 2018)
In the Central Andes, large Plinian eruptions (VEI ≥ 6) occur at a relatively high frequency: one every 2000 to 4000 years over the past 50,000 years in southern Peru. This recurring, explosive activity poses a challenge ...
Modeling tephra fall and sediment-water flows to assess their impacts on a vulnerable building stock in the city of Arequipa, Peru
(Frontiers Media, 2022-05-17)
Arequipa, Peru’s second economic center hosting c. 1,110,000 inhabitants, is the largest South American city exposed to a large variety of natural hazards. At least 200,000 live in areas likely to be affected by hazards ...
Nothofagus pumilio forest affected by recent tephra deposition in northern patagonia. I-environmental traits influencing seedling growth
(Sociedad Chilena de la Ciencia del Suelo, 2018-06)
The 2011 Puyehue-Cordón Caulle volcanic eruption left vast areas of Nothofagus pumilio forests covered by high volumes of tephra, which buried the understory. This event offered a unique opportunity to analyse the impact ...