Results 41 to 50 of about 2,382 (170)

Rupture and Relamination of Continental Lithosphere in a Subduction System (Variscan Orogeny, SW Iberia)

open access: yesTectonics, Volume 44, Issue 7, July 2025.
Abstract Relamination is closely connected to subduction zones. Despite the numerous high‐P metamorphic belts recognized on Earth, relamination remains a poorly documented process. We present a continental subduction zone where the exhuming high‐P rocks became a relaminant under the upper plate.
Rubén Díez Fernández   +7 more
wiley   +1 more source

Iron, zinc, copper and magnesium nutritional status in Mexican children aged 1 to 11 years Estado nutricio de hierro, zinc, cobre y magnesio en niños mexicanos de 1 a 11 años de edad

open access: yesSalud Pública de México, 2012
OBJECTIVE: To describe the micronutrient nutritional status of a national sample of 1-11 year old Mexican children surveyed in 2006 in National Health and Nutrition Survey (ENSANUT 2006) and their association with dietary and sociodemographic factors ...
Ma. del Carmen Morales-Ruán   +6 more
doaj  

Magnesio

open access: yes, 2017
Labor realizada en conjunto entre el SEGEMAR (con la colaboración de sus dos áreas principales, el INTEMIN y el IGRM) y la Universidad Nacional de San Martín (UNSAM)
Argentina. Universidad Nacional de General San Martín (UNSAM)   +1 more
openaire   +1 more source

Phase Equilibria Analysis for Metacarbonate With Applications to Zoned Calc‐Silicate Aureoles

open access: yesJournal of Metamorphic Geology, Volume 43, Issue 5, Page 445-465, June 2025.
ABSTRACT Carbonate rocks react with infiltrating hydrothermal fluids to produce zoned calcsilicate assemblages in contact aureoles. Petrogenetic grids provide valuable insights into phase relations, metamorphic temperature (T) and the fluid composition (X) of the metacarbonate systems, as well as semi‐quantification of the prograde decarbonation at ...
Zhenhao Zhou, Xu Chu
wiley   +1 more source

El calcio es un nutriente limitante en cafetales bajo manejo intensivo de fertilizantes en Ultisoles

open access: yesAgronomía Costarricense, 2017
La producción intensiva de café (Coffea arabica) demanda cantidades considerables de potasio (K) y nitrógeno (N). En agroecosistemas fertilizados con N, K y P, es razonable prever que el calcio (Ca) ó el magnesio (Mg) resulten limitantes.
Sebastián Castro-Tanzi
doaj   +1 more source

Strong scale‐dependent relationships between fine‐root function and soil properties uncovered with spatially coupled sampling

open access: yesNew Phytologist, Volume 246, Issue 6, Page 2506-2521, June 2025.
Summary Substantial fine‐root trait variation is found at fine spatial scales but rarely linked to edaphic variation. We assessed the spatial scales of variation in fine‐root traits and adjacent soils using a spatially coupled, nested sampling scheme along a fertility gradient in a seasonally dry tropical forest tree, Handroanthus ochraceus.
Caroline Dallstream   +3 more
wiley   +1 more source

Melt‐Supported Strain Localization at Eclogite‐Facies Conditions Triggered by Syn‐Metamorphic Strength Inversion

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract In convergent high‐pressure settings dominated by dry mafic rocks, strain has been proposed to be predominantly localized in eclogite. However, the processes initiating strain localization, accommodating strain and rheological consequences remain to be identified.
Anna Rogowitz   +4 more
wiley   +1 more source

EFECTO DE LA APLICACIÓN DE LOS FUNGICIDAS PROPINEB Y MANCOZEB SOBRE EL ESTADO NUTRICIONAL DE PLÁNTULAS DE BANANO EN MEDIO HIDROPÓNICO

open access: yesAgronomía Costarricense, 2013
Se evaluó el efecto de la aplicación reiterada y/o alterna de los fungicidas propineb y mancozeb sobre el estado nutricional y el crecimiento de plántulas de banano procedentes de cultivo in vitro.
Juan Carlos Méndez   +2 more
doaj  

La tensión umbral para la fluencia, en un material de base magnesio procesado por pulvimetalurgia

open access: yesRevista de Metalurgia, 2010
Se ha estudiado la presencia de una tensión umbral, en una aleación de magnesio AZ31 de pequeño tamaño de grano conteniendo diferentes cantidades de partículas, procesada por métodos pulvimetalúrgicos.
J. A. del Valle, O. A. Ruano
doaj   +1 more source

Concentración de calcio, fósforo y magnesio en sueros de bovinos cebú en condiciones de pastoreo y en clima semicálido húmedo

open access: yesRevista Mexicana de Ciencias Pecuarias, 1982
Existe un número considerable de cabezas de ganado cebuino en el país, el cual se encuentra localizado principalmente en áreas tropicales. Sin embargo, la información sobre la concentración de los componentes sanguíneos y los factores que la afectan es ...
Juan García García   +2 more
doaj  

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