Resultados de búsqueda - ((((((sumano OR sum) OR (some OR asome)) OR usura) OR uusumaay) OR asuma) OR uuusumoo)*

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    Potential economic impact assessment for cattle parasites in Mexico. Review por Rodríguez Vivas, Roger Iván, Grisi, Laerte, Pérez de León, Adalberto Angel, Silva Villela, Humberto, Torres-Acosta, Juan Felipe de Jesús, Fragoso Sánchez, Hugo, Romero Salas, Dora, Rosario Cruz, Rodrigo, Saldierna, Fabián, García Carrasco, Dionisio

    Publicado 2017
    “…Considering that the national cattle herd registered in 2013 included 32.40 million head, the estimated yearly loss per head was US$ 43.57. The limitations of some of the baseline studies used to develop these estimates, particularly when extrapolated from local situations to a national scale, are acknowledged. …”
    Enlace del recurso
    Artículo
  19. 879

    Mineralogical and geochemical evidence of magma mingling/mixing in the Sierra de las Cruces volcanic range, Mexican Volcanic Belt por Velasco Tapia, Fernando, Rodríguez Saavedra, Pedro, Márquez, A., Navarro de León, Ignacio, De Ignacio, Cristina, Marroquín Guerra, Sylvia Gabriela, Quintanilla Garza, Jesús, Rangel Alvarez, Oscar Mario

    Publicado 2013
    “…The evidences of magma mixing and mingling include: (a) normal and sieved plagioclases in the same sample, rounded and embayed crystals, and armoured rims over the dissolved crystal surfaces; (b) subrounded, vesicular magmatic enclaves, ranging from a few millimeters to ~20 centimeters in size, with plagioclase + orthopyroxene + amphibole + quartz ± olivine ± Fe-Ti-oxides assemblage; (c) mineral chemistry evidence such as crystals with reaction rims or heterogeneous plagioclase compositions (inverse and oscillatory zoning or normally and inversely zoned crystals) in the same sample; and (d) elemental geochemical variations and trace-element ratio more akin to magma mixing and to some extent diffusion process. These andesitic enclaves could be considered as portions of the intermediate magma that did not mix completely (mingling) with the felsic host lavas, confirming the major role of magma mixing and mingling processes in the overall evolution of the MVB.…”
    Enlace del recurso
    Artículo
  20. 880

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