Buscar
Mostrando ítems 31-40 de 78
Serra da Bocaina vulcanic suite, Amoguijá Grup, Rio Apa Massif - MSSUÍTE VULCÂNICA SERRA DA BOCAINA, GRUPO AMOGUIJÁ, MACIÇO RIO APA - MS
(Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, 2010)
Life and death in a submarine volcanic ash dune: the case of a group of Patagonian Miocene echinoids
(Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo, 2019)
Early Miocene sedimentary rocks of the lower part of the Monte Leon Formation are locally very fossiliferous. Echinoids of the heart urchin family Schizasteridae were collected from outcrops exposed along National Route ...
Reworked pyroclastic beds in the early Miocene of Patagonia: Reaction in response to high sediment supply during explosive volcanic events
(Elsevier Science, 2013-05)
Two meter-scale pyroclastic levels are interbedded within the early Miocene succession of the Estancia 25 de Mayo (Patagoniense transgression) and Santa Cruz formations in the foreland Austral (or Magallanes) Basin, ...
La actividad explosiva del volcán Turrialba (Costa Rica) en el período 2010 - 2016
(Universidad de Costa Rica, 2016-12-18)
The most recent eruptive activity of Turrialba volcano began on the 5th of January 2010, after more than a century of dormancy. The fragmentation process and aerodynamic behavior of the ash from Turrialba’s vulcanian ...
Petrography and geochemistry of late Quaternary dune fields of western Argentina: Provenance of aeolian materials in southern South America
(Elsevier, 2010-06)
Landscapes of western Argentina are dominated by aeolian sand of diverse composition, reflecting multiple sediment sources. This study focuses on determining the petrography and geochemical composition of sand from three ...
Effect of volcanic ash over Orthoptera survival in PatagoniaEfecto de la ceniza volcánica sobre la supervivencia de ortópteros en la Patagonia
(Asociación Argentina de Ecología, 2015-04)
El objetivo de este trabajo fue evaluar la toxicidad de las cenizas volcánicas del volcán Puyehue-cordón Caulle en la supervivencia de dos especies de Orthoptera: la tucura Dichroplus vittigerum y la langosta verde Brugilis ...
Late Glacial-Holocene tephra from southern Patagonia and Tierra del Fuego (Argentina, Chile): A complete textural and geochemical fingerprinting for distal correlations in the Southern Hemisphere
(Pergamon-Elsevier Science Ltd, 2018-09)
Explosive volcanoes from the southern Andes are able to disperse ash over wide areas of the Southern Hemisphere, potentially as far as Antarctica. With the aim of improving correlations between sources and tephra in ...
Effect of volcanic ash over Orthoptera survival in Patagonia
(2015-04)
The aim of this work was to evaluate the ash toxicity from the Puyehue-Cordón Caulle volcanic
complex on the survival of two Orthopteran species: the grasshoper Dichroplus vittigerum and the green locust
Brugilis sp. Two ...