Results 41 to 50 of about 2,341 (170)
Journal of Metamorphic Geology, Volume 43, Issue 4, Page 341-358, May 2025.ABSTRACT The reactive flow of melt through the mantle or crust triggers chemical disequilibrium, driving reactions that significantly alter the mineral assemblages and physical properties of host rocks. However, the degrees of chemical difference required to initiate these reactions and their timescale remain poorly understood.
Robyn L. Gardner +4 more
wiley +1 more source
Salud 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
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Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.Abstract We describe and compare two outcrops of pyroxenite associated with Neoproterozoic ophiolite sequences in the Eastern Desert of Egypt: small masses in the Abu Samuki area of the North Eastern Desert and large belts in the Wadi El‐Mireiwa area of the South Eastern Desert.
Hussam A. Selim +7 more
wiley +1 more source
El calcio es un nutriente limitante en cafetales bajo manejo intensivo de fertilizantes en Ultisoles
Agronomía 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
Geological Journal, Volume 60, Issue 2, Page 560-581, February 2025.This study identifies a two‐stage metamorphism in the Western Dharwar Craton using Raman spectra of carbonaceous material (RSCM) thermometry, and analysis of metamorphic mineral chemistry. These findings are linked with the micro to regional‐scale structural evolution of the region, providing insights into how low‐grade metamorphism contributes to ...
Lakshmanan Sreehari +7 more
wiley +1 more source
Insights Into Mantle Plume Geochemistry From Machine Learning
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.Abstract Oceanic island basalts are the products of mantle plume melting and their chemistry provides insights into the Earth's deep interior. We report a statistical and machine learning study of 8 radiogenic isotopes and 19 incompatible trace element ratios in basalts from 27 oceanic island volcanic chains associated with mantle plumes compiled from ...
William M. White +2 more
wiley +1 more source
Agronomía 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
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La tensión umbral para la fluencia, en un material de base magnesio procesado por pulvimetalurgia
Revista 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
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, 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
Revista 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
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