Results 41 to 50 of about 11,526 (184)

Contribución de los isótopos de He al origen de los fluidos hidrotermales: aplicación al estudio de las mineralizaciones de fluorita de Asturias (N de España)

Estudios Geologicos, 2010
En este trabajo se ha realizado un estudio de isótopos de He con objeto de determinar la influencia mantélica o cortical de los volátiles en los fluidos implicados en la formación de las mineralizaciones de F-Ba de Asturias (N de España).
V. Sánchez, T. Martín-Crespo, E. Vindel, M. Corbella, E. Cardellach   +4 more
doaj   +1 more source

Rift‐Related Low‐Pressure–High‐Temperature Granulite Facies Metamorphism Generates Widespread Peraluminous Crustal Melts: Evidence From the Early Jurassic Mexican Crust

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract High heat fluxes occurring in rift settings are expected to generate partially melted low‐pressure–high‐temperature granulites (LP–HTG). Therefore, studying these rocks can offer valuable insights into crustal reworking during extension. However, our interpretations are limited by the rarity of LP–HTG in the metamorphic record.
Anthony Ramírez‐Salazar, Mattia Parolari, Arturo Gómez‐Tuena, Fernando Ortega‐Gutiérrez, Mariano Elías‐Herrera   +4 more
wiley   +1 more source

Variabilidad química y mineralógica de las facies glauconíticas del sector norte del margen continental Mar de Alborán

Estudios Geologicos, 1998
Se han estudiado granos glauconíticos de los sedimentos superficiales de la plataforma y talud continentales (profundidades entre 50 y 225 m) de la Cuenca del Mar de Alborán, frente a la localidad de Benalmádena (Málaga).
M. C. Domínguez, E. García Romero, A. La Iglesia, J. V. Navarro Gascón, A. Santos Sánchez, C. Viedma Molero   +5 more
doaj   +1 more source

Paleomagnetismo y mineralogia magnetica en las unidades del Mesozoico de Bucaramanga y Macizo de Floresta [PDF]

, 2005
Análisis de paleomagnetismo y de mineralogía magnética en rocas del Jurásico y Cretácico Inferior del área de Bucaramanga (Fms. Bocas, Jordán, Girón y Los Santos), y del sur del Macizo de Floresta (Fms.
Aldana, Milagrosa, Ayala Calvo, Rosa Carolina, Bayona, Germán, Cortés, Martín, Costanzo-Alvarez, Vincenzo, Gomez Casallas, Mayeli, Rapalini, Augusto Ernesto, Veloza Fajardo, Gabriel Eduardo   +7 more
core  

Late Cambrian Syn‐Intrusive Thickening of the Ikh Mongol Arc Domains in the Mongolian Collage

Tectonics, Volume 44, Issue 1, January 2025.
Abstract Structural analysis, U–Pb monazite and xenotime dating, Ar–Ar dating of biotite and amphibole and thermodynamic modeling of peak metamorphic assemblages allow constraining the tectono‐thermal evolution of the migmatite‐magmatite domain on the southern periphery of Precambrian Zavkhan Block. The main subvertical metamorphic fabric resulted from
Vít Peřestý, Igor Soejono, Karel Schulmann, Gilles Ruffet, Andrew Kylander‐Clark, Jiří Sláma, Pavla Štípská, Petra Maierová, Pavel Hanžl, Carmen Aguilar, Adam Kašpar   +10 more
wiley   +1 more source

Geochronology and detrital zircons sources from the Sierra Albarrana Domain (SW Iberian Massif)

Geogaceta, 2023
This study compiles the U-Pb and 40Ar/39Ar geochronology of the metasedimentary, migmatitic and granitic rocks of the Sierra Albarrana Domain, based on data recently published by the authors together with other bibliographic sources.
Byron Solis Alulima, Jacobo Abati Gómez, Alicia López Carmona, Gabriel Gutiérrez Alonso, Javier Fernández Suárez   +4 more
doaj   +1 more source

Geología, mineralogía y estructura de la mina Acazoque (Pb-Ag-Zn), Puna salteña [PDF]

, 2016
Mina Acazoque, ubicada en la Puna salteña (24° S), corresponde a un depósito epitermal de baja sulfuración relacionada con la actividad magmática miocena.
Avila, Julio, Brod, J. A., Petrinovic, Ivan Alejandro, Salado Paz, Natalia   +3 more
core  

Tidal versus fluvial point bars: Key features from the integration of outcrop, core and wireline log information of Triassic examples

The Depositional Record, Volume 10, Issue 5, Page 793-820, November 2024.
Abstract The Triassic red beds of the Tabular Cover of the Iberian Meseta are an excellent reservoir outcrop analogue, a direct consequence of high‐quality exposures, which offer exceptional three‐dimensional outcrops, as well as a wide variability of depositional environments.
Luis Miguel Yeste, Marc Gil‐Ortiz, Fernando García‐García, César Viseras, Neil David Mcdougall, Patricia Cabello, Luca Caracciolo   +6 more
wiley   +1 more source

V. El Museu de Geologia i dues grans col·leccions: la col·lecció Cervelló (Mineralogia) i la col·lecció Villalta (Paleontologia). Les exposicions temporals i noves adquisicions. 1979-1984 [PDF]

, 2006
Aquest període, de curta durada, coincideix amb l’ingrés en els fons del Museu de Geologia de dues importants col·leccions pel que fa al nombre d’exemplars, la qualitat expositiva o l’interès científic.
Masriera, A.
core  

Patterns of Plio‐Pleistocene Ice Volume Variability Recorded by the Large‐Magnitude Explosive Eruptions From the Kamchatka‐Kurile Volcanic Arc

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 10, October 2024.
Abstract Marine fallout ash beds can provide continuous, time‐precise records of highly explosive arc volcanism that can be linked with the climate record. An evaluation of revised Plio‐Pleistocene (0–4 Myr) tephrostratigraphies from Ocean Drilling Program Sites 881, 882, and 884 confirms cyclicity of the Kamchatka‐Kurile arc volcanism and a marked ...
Susanne M. Straub, Brendan Reilly, Maureen E. Raymo, Arturo Gómez‐Tuena, Kuo‐Lung Wang, Elisabeth Widom, David Kuentz, Richard J. Arculus   +7 more
wiley   +1 more source