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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/35729

Title: Evolution of fluid sources during the neogene exhumation of the Sierra Almagrera (Betics, Spain)
Authors: Dyja, Vanessa
Carrillo-Rosúa, Javier
Morales-Ruano, Salvador
Tarantola, Alexandre
Hibsch, Christian
Issue Date: Jul-2014
Abstract: In the Sierra Almagrera, the N-S striking Palomares fault separated an uplifted block to the East (Booth-Rea et al., 2004) where Fe-Ba-Pb-Cu-Zn-(Ag) mineralizations led to the development of a mining district. To the West, the basement is buried below Neogene sediments locally presenting silicification and stratabound ore deposits Fe-Ba-Pb-(Ag) (Morales-Ruano, 1994). The question related to the orographic evolution of the wedge is addressed in this work: Did basinal and meteoric fluids from the sierras have circulated within the crust and interacted with deeper crustal fluids related to the metamorphism, volcanism and hydrothermal events? Answers are given by the study of fluid inclusions (FI) trapped within several vein generations of different minerals such as quartz, siderite barite and calcite, related to different stages of exhumation. Fluids are identified by microthermometry, Raman spectroscopy and halogens characterization.
Sponsorship: Departamento de Mineralogía y Petrología (Universidad de Granada)
GeoRessources, Université de Lorraine, CNRS, CREGU, UMR 7359, Vandœuvre-lès-Nancy, F-54506 (France)
Departamento de Didáctica de las Ciencias Experimentales (Universidad de Granada)
Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR)
This work has been supported by the Ministry of the higher education and research and CNRS ST-INSU-CT5 program.
Publisher: Sociedad Española de Mineralogía
Description: http://www.ehu.eus/sem/macla_pdf/macla19/Dyja.et.al_SEM_2014_WEB.pdf
Comunicación del Congreso SEM 2014, XXXIV Reunión Científica de la Sociedad Española de Mineralogía, Granada 2-7 Julio de 2014. Editores: Salvador Morales Ruano, Fernando Gervilla Linares y José Torres Ruiz.
Keywords: Inclusiones fluidas
Cordillera bética
Mineralizaciones
Fluidos metamórficos
Falla transalboran
Mineralisations
Metamorphic brines
Betic Cordillera
Trans-alboran fault
Fluid inclusions
URI: http://hdl.handle.net/10481/35729
ISSN: 1885-7264
Citation: Dyja, V.; Carrillo-Rosúa, J.; Morales-Ruano, S.; Tarantola, A.; Hibsch, C. Evolution of fluid sources during the neogene exhumation of the Sierra Almagrera (Betics, Spain). Macla, 19: (2014). [http://hdl.handle.net/10481/35729]
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