Results 231 to 240 of about 49,488 (254)

Recategorización del Parque Nacional Nevado de Toluca

, 2015
Alejandra Toscana Aparicio, Rebeca Granados Ramírez   +1 more
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Reinterpretacion de la erupcion pliniana que dio origen a la Pomez Toluca Superior, Volcan Nevado de Toluca

, 1999
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Toluca-1, a newly recognized enterovirus

Archiv f�r die gesamte Virusforschung, 1973
The characteristics of a hemagglutinating enterovirus, Toluca-1, are described. The virus appears to be sufficiently distinct from all previously described enteroviruses to be considered a new serotype.
L, Rosen, N J, Schmidt, J, Kern
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The snake genera Conopsis and Toluca

1942
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Taylor, Edward Harrison, Smith, Hobart M. (Hobart Muir)   +1 more
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Geomydoecus (Geomydoecus) tolucae Price & Emerson 1971

2018
Published as part of Sánchez-Montes, Sokani, Colunga-Salas, Pablo, Álvarez-Castillo, Lucía, Guzmán-Cornejo, Carmen & Montiel-Parra, Griselda, 2018, Chewing lice (Insecta: Phthiraptera) associated with vertebrates in Mexico, pp.
Sánchez-Montes, Sokani, Colunga-Salas, Pablo, Álvarez-Castillo, Lucía, Guzmán-Cornejo, Carmen, Montiel-Parra, Griselda   +4 more
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Tephrochronology of the Toluca Basin, central Mexico

Quaternary Science Reviews, 1999
Abstract The major element glass geochemistry of 10 Late Pleistocene and Holocene tephras found in the Toluca Basin in the Trans-Mexican Volcanic Belt is reported for the first time, as a key step towards establishing a tephrochronology for the region.
Anthony J. Newton, Sarah E. Metcalfe
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The Lower Toluca Pumice: A ca. 21,700 yr B.P. Plinian eruption of Nevado de Toluca volcano, México

2006
Approximately 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, Lia María Carreras, José Luis Arce, José Luis Macías   +3 more
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Radon concentration levels in ground water from Toluca, Mexico

Science of The Total Environment, 1993
Concentration levels of 222Rn have been analysed in water samples from deep wells of the aquifers around the City of Toluca, Mexico. The 222Rn source is the decay of 226Ra within the solid matrix of the aquifer. With a half life of 1600 years the 226Ra continuously releases 222Rn to the pores, from which it diffuses into the main body of water.
M T, Olguin, N, Segovia, E, Tamez, M, Alcántara, S, Bulbulian   +4 more
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The 12.1 ka Middle Toluca Pumice: A dacitic Plinian–subplinian eruption of Nevado de Toluca in Central Mexico

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, K.E. Cervantes, J.L. Macías, J.C. Mora   +3 more
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