Carlos Marin Lechado | Geological Survey of Spain-Instituto Geológico de España (IGME) (original) (raw)

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Papers by Carlos Marin Lechado

Research paper thumbnail of Estructura y evolución tectónica reciente del Campo de Dalías y de Níjar en el contexto del límite meridional de las Cordilleras Béticas orientales

... de Granada por su amistad y ánimo continuo: Fernando, Patricia, Billy, Suso, Asrar, Fermín ..... more ... de Granada por su amistad y ánimo continuo: Fernando, Patricia, Billy, Suso, Asrar, Fermín ... de la Tierra (CSIC): Wenceslao Martín Rosales, José Rodríguez Fernández, Miguel Orozco, FranciscoGonzález Lodeiro, Domingo Aerden, Juan Ignacio Soto, Antonio Jabaloy ...

Research paper thumbnail of Estructura de la Cuenca de Níjar a partir de datos gravimétricos (Cordillera Bética oriental)

Research paper thumbnail of Relaciones entre tectónica y sedimentación asociadas a las Rides Prérifaines en la Cuenca de Volubilis (frente del Rif, Marruecos)

... Francisco Javier Roldán García (1), Jesús Galindo Zaldívar (2,3), Ahmed Chalouan(4), Farida A... more ... Francisco Javier Roldán García (1), Jesús Galindo Zaldívar (2,3), Ahmed Chalouan(4), Farida Anahnah (2), M'Fedal Ahmamou (4), Patricia ... Perfiles sísmicos y sondeos de investigación de hidrocarburos (Zizi, 1996 y 2002) permiten conocer la geome-tría de las principales ...

Research paper thumbnail of Estimación del volumen de huecos mineros en el batolito de Linares (Jaén)

Research paper thumbnail of Espesor de los sedimentos neógenos y cuaternarios en el Corredor del Almanzora a partir de datos gravimétricos (Cordillera Bética oriental)

Research paper thumbnail of Methodology to evaluate the renewal period of carbonate aquifers: a key tool for their management in arid and semiarid regions, with the example of Becerrero aquifer, Spain

Hydrogeology Journal, 2014

Research paper thumbnail of Crustal-scale transcurrent fault development in a weak-layered crust from an integrated geophysical research: Carboneras Fault Zone, eastern Betic Cordillera, Spain

Geochemistry Geophysics Geosystems, 2010

New magnetotelluric and receiver transfer function studies provide insights from the upper to the... more New magnetotelluric and receiver transfer function studies provide insights from the upper to the lower crust of the eastern Betic Cordillera, which is deformed by large folds, normal faults, and a major transcurrent left-lateral fault, the Carboneras Fault Zone (CFZ). Receiver function analysis determines a NNW dipping Moho reaching 20°that increases in depth, from 20 km south of the CFZ up to 34 km in the Sierra de Los Filabres. In addition, seismic discontinuities determined in the upper crust are interpreted as major contacts between metamorphic complexes that are detached and folded. The MT inversion model reveals a conductive zone, also representing a crustal seismic discontinuity, associated with the Alpujárride/Nevado-Filábride contact and fitting the N vergent geometry of the Sierra Alhamilla antiform. A small flexure at Moho coincides with the CFZ, as revealed by the Bouguer anomaly trend, in agreement with the receiver function results. Moreover, the Bahr strike and tipper angle at the stations placed closest to the CFZ clearly reveal the continuity of the CFZ at least down to approximately 15 km in depth, crossing all the detected crustal discontinuities up to the Moho. The lack of a clear Moho offset associated with the Carboneras Fault supports the idea that some large strike-slip faults tend to accommodate the deformation by a broadening fault zone at lower crustal levels. Its nucleation could occur at the base of a thin crust, where melting processes critically reduced the lithospheric strength during the late Miocene, to then propagate upward, reaching the topographic surface. Northward, the lithosphere comprised moderately larger strength, and the crustal discontinuities favored the development of larger folds with kilometric amplitude instead of strike-slip faults since the late Miocene.

Research paper thumbnail of Constraints on the frontal crustal structure of a continental collision from an integrated geophysical research: The central-western Betic Cordillera (SW Spain)

Geochemistry, Geophysics, Geosystems, 2012

Research paper thumbnail of Estructura y evolución tectónica reciente del Campo de Dalías y de Níjar en el contexto del límite meridional de las Cordilleras Béticas orientales

... de Granada por su amistad y ánimo continuo: Fernando, Patricia, Billy, Suso, Asrar, Fermín ..... more ... de Granada por su amistad y ánimo continuo: Fernando, Patricia, Billy, Suso, Asrar, Fermín ... de la Tierra (CSIC): Wenceslao Martín Rosales, José Rodríguez Fernández, Miguel Orozco, FranciscoGonzález Lodeiro, Domingo Aerden, Juan Ignacio Soto, Antonio Jabaloy ...

Research paper thumbnail of Estructura de la Cuenca de Níjar a partir de datos gravimétricos (Cordillera Bética oriental)

Research paper thumbnail of Relaciones entre tectónica y sedimentación asociadas a las Rides Prérifaines en la Cuenca de Volubilis (frente del Rif, Marruecos)

... Francisco Javier Roldán García (1), Jesús Galindo Zaldívar (2,3), Ahmed Chalouan(4), Farida A... more ... Francisco Javier Roldán García (1), Jesús Galindo Zaldívar (2,3), Ahmed Chalouan(4), Farida Anahnah (2), M'Fedal Ahmamou (4), Patricia ... Perfiles sísmicos y sondeos de investigación de hidrocarburos (Zizi, 1996 y 2002) permiten conocer la geome-tría de las principales ...

Research paper thumbnail of Estimación del volumen de huecos mineros en el batolito de Linares (Jaén)

Research paper thumbnail of Espesor de los sedimentos neógenos y cuaternarios en el Corredor del Almanzora a partir de datos gravimétricos (Cordillera Bética oriental)

Research paper thumbnail of Methodology to evaluate the renewal period of carbonate aquifers: a key tool for their management in arid and semiarid regions, with the example of Becerrero aquifer, Spain

Hydrogeology Journal, 2014

Research paper thumbnail of Crustal-scale transcurrent fault development in a weak-layered crust from an integrated geophysical research: Carboneras Fault Zone, eastern Betic Cordillera, Spain

Geochemistry Geophysics Geosystems, 2010

New magnetotelluric and receiver transfer function studies provide insights from the upper to the... more New magnetotelluric and receiver transfer function studies provide insights from the upper to the lower crust of the eastern Betic Cordillera, which is deformed by large folds, normal faults, and a major transcurrent left-lateral fault, the Carboneras Fault Zone (CFZ). Receiver function analysis determines a NNW dipping Moho reaching 20°that increases in depth, from 20 km south of the CFZ up to 34 km in the Sierra de Los Filabres. In addition, seismic discontinuities determined in the upper crust are interpreted as major contacts between metamorphic complexes that are detached and folded. The MT inversion model reveals a conductive zone, also representing a crustal seismic discontinuity, associated with the Alpujárride/Nevado-Filábride contact and fitting the N vergent geometry of the Sierra Alhamilla antiform. A small flexure at Moho coincides with the CFZ, as revealed by the Bouguer anomaly trend, in agreement with the receiver function results. Moreover, the Bahr strike and tipper angle at the stations placed closest to the CFZ clearly reveal the continuity of the CFZ at least down to approximately 15 km in depth, crossing all the detected crustal discontinuities up to the Moho. The lack of a clear Moho offset associated with the Carboneras Fault supports the idea that some large strike-slip faults tend to accommodate the deformation by a broadening fault zone at lower crustal levels. Its nucleation could occur at the base of a thin crust, where melting processes critically reduced the lithospheric strength during the late Miocene, to then propagate upward, reaching the topographic surface. Northward, the lithosphere comprised moderately larger strength, and the crustal discontinuities favored the development of larger folds with kilometric amplitude instead of strike-slip faults since the late Miocene.

Research paper thumbnail of Constraints on the frontal crustal structure of a continental collision from an integrated geophysical research: The central-western Betic Cordillera (SW Spain)

Geochemistry, Geophysics, Geosystems, 2012