Results 31 to 40 of about 91,671 (192)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.Abstract The Zagros orogen records the closure of the Neotethys Ocean by northward subduction of the oceanic slab beneath the Iranian plate. Northwestern Iran has undergone episodic volcanism since the Eocene, due to a shift of tectonic regimes from subduction to collision and post‐collisional extension, although the dynamics responsible for such ...
Farzaneh Shakerardakani +5 more
wiley +1 more source
Reducción de color con cloruro de magnesio en soluciones con colorantes comerciales [PDF]
, 2017 Se experimentó con diferentes concentraciones de cloruro de magnesio (MgCl2) como coagulante para reducir el color en soluciones con colorantes comerciales: negro, azul y café.
ESPARZA SOTO, MARIO +9 more
core +4 more sources
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
Sulfato de magnesio como tratamiento adyuvante en la crisis asmática : ¿cómo usarlo? [PDF]
, 2016 23 páginas.Trabajo Fin de Máster Universitario en Urgencias y Emergencias Pediátricas (2015/16). Tutor: Antonio Manuel Vázquez Florido. El asma es la segunda enfermedad crónica más prevalente en niños españoles.
Contreras López, Jorge
core
Rapid Incorporation of Metasediments Into Lower Crust of the Gangdese Magmatic Arc, Southern Tibet
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Deeply exhumed crustal terranes of continental arcs worldwide commonly contain metasedimentary components, but the nature of these lithologies and how they became incorporated into the lower crust are not fully understood. Here, we present petrological, geochemical and geochronological data from exhumed deep‐crustal metapelites and ...
Sheng‐Kai Qin +5 more
wiley +1 more source
Oxide Gabbros: Transformation From Oceanic Ridge‐Transform Systems to Subduction
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Fluid composition and fluxes in subduction zones are primarily governed by the nature and degree of hydrothermal alteration of the subducting oceanic lithosphere. However, spatial and temporal heterogeneities inherited from mid‐ocean ridge and oceanic transform fault (OTF) systems introduce significant uncertainties in constraining these fluid
Thomas Gyomlai +5 more
wiley +1 more source
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
doaj +1 more source
Presencia de vonsenita en la mina Monchi, Badajoz (España) [PDF]
, 1971 En el estudio de las paragénesis metálicas de la mina "Monchi" de Burguillos del Cerro (Badajoz), ha resultado de interés la aparición de un mineral del cual no hemos encontrado antecedentes en España.
Ruíz García, Casilda
core +1 more source
Tectonics, 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
Phase Equilibria Analysis for Metacarbonate With Applications to Zoned Calc‐Silicate Aureoles
Journal 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