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Plinian eruptions of Nevado de Toluca volcano, Mexico
Geologische Rundschau, 1977Die Unteren und die Oberen Bimssteine des Toluca sind dacitische air fall-Ablagerungen, die vor etwa 24 500 bzw. 11 600 Jahren gefordert wurden. Der „Lower Toluca Pumice“ bedeckt ungefahr 400 km2 und hat ein Volumen von rund 0,33 km3 (porenfrei gerechnet von 0,16 km3).
Bloomfield, K. +2 more
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Volcanic hazard zonation of the Nevado de Toluca volcano, México
Journal of Volcanology and Geothermal Research, 2008The Nevado de Toluca is a quiescent volcano located 20 km southwest of the City of Toluca and 70 km west of Mexico City. It has been quiescent since its last eruptive activity, dated at ~ 3.3 ka BP. During the Pleistocene and Holocene, it experienced several eruptive phases, including five dome collapses with the emplacement of block-and-ash flows and ...
Capra L +4 more
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Coccidia in passerines from the Nevado de Toluca National Park, Mexico
Acta Parasitologica, 2014AbstractIn this study, we found unsporulated coccidia oocysts in passerines from the Nevado de Toluca National Park, Mexico. We captured birds and took samples of their droppings during three field visits. We examined a total of 72 fecal samples and found unsporulated coccidia oocysts in 10 samples from five passerine species: Atlapetes pileatus (3 ...
Juan P, Medina +8 more
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Gravitational processes on the eastern flank of the Nevado de Toluca, Mexico
Zeitschrift für Geomorphologie, 2013Landslides in volcanic mountainous terrains covered by poorly consolidated materials are common in Mexico. This investigation illustrates the landslides and geomorphologic changes of debris flow deposits in the town of Santa Cruz Pueblo Nuevo, State of Mexico, by using a multicriteria analysis in Geographic Information Systems (GIS) to obtain a ...
José Fernando Aceves-Quesada +2 more
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Pleistocene cohesive debris flows at Nevado de Toluca Volcano, central Mexico
Journal of Volcanology and Geothermal Research, 2000Abstract During the Pleistocene, intense hydrothermal alteration promoted a flank failure of the southern portion of Nevado de Toluca volcano. This event produced a debris avalanche that transformed into a cohesive debris flow (Pilcaya deposit) owing to water saturation and weakness of the altered pre-avalanche rocks. The Pilcaya debris flow traveled
L. Capra, J.L. Macı́as
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Volcanic hazards zonation of the Nevado de Toluca Volcano, Central Mexico
Natural Hazards, 2007Nevado de Toluca Volcano (NTV), located in central Mexico, is a large stratovolcano, with an explosive history. The area is one of the most important developing centers (>2 millions) in Mexico and in the last 30 yrs large population growth and expansion have increased the potential risk in case of a reactivation of the volcano.
José Fernando Aceves Quesada +2 more
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Late Pleistocene Eruptive History of Nevado de Toluca Volcano, Central Mexico
Geological Society of America Bulletin, 1974Fieldwork and radiocarbon dating provide evidence of two major explosive eruptions and an intervening minor eruption. The Nevado, a central stratovolcano built up in late Pleistocene time, was eviscerated by a violent Vulcanian-type eruption about 25,000 yr B.P., which deposited thick, cold, lithic lahars around its flanks. After a period of widespread
K. BLOOMFIELD, S. VALASTRO
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Journal of Volcanology and Geothermal Research, 2005
Abstract The Nevado de Toluca volcano erupted explosively approximately 12.1 ka ago, producing a Plinian–subplinian eruption that deposited the Middle Toluca Pumice (MTP). The MTP consists of white and gray juvenile pumice, gray dense juvenile lapilli, and red altered lithic lapilli. The pumice is dacitic (63.54–65.06 wt.% SiO 2 ) with phenocrysts of
J.L. Arce +3 more
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Abstract The Nevado de Toluca volcano erupted explosively approximately 12.1 ka ago, producing a Plinian–subplinian eruption that deposited the Middle Toluca Pumice (MTP). The MTP consists of white and gray juvenile pumice, gray dense juvenile lapilli, and red altered lithic lapilli. The pumice is dacitic (63.54–65.06 wt.% SiO 2 ) with phenocrysts of
J.L. Arce +3 more
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The Lower Toluca Pumice: A ca. 21,700 yr B.P. Plinian eruption of Nevado de Toluca volcano, México
2006Approximately 21,700 yr B.P., after a period of quiescence of ~4800 yr, Nevado de Toluca volcano erupted, producing the Lower Toluca Pumice deposit. The activity generated a 24-km-high Plinian column that lasted ~11–13 h and dispersed 2.3 km (0.8 km dense rock equivalent) of tephra toward the NE, blanketing the Lerma basin, an area occupied today by ...
Lucia Capra +3 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
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