Thesis Collection
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Browsing by Author "Cuevas, Julia"
Now showing items 1-20 of 34
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Análisis de la fábrica magnética en el Sinclinorio de Bizkaia: Implicaciones en la tectónica regional
(Sociedad Geológica de España, 2017)A combined structural and AMS analysis is made in Upper Cretaceous rocks from the periclinal closure of the Biscay Synclinorium (Basque-Cantabrian basin). Fieldwork has led to the recognition of a broad band with a pervasive ... -
Análisis del plegamiento al Norte de Biescas (Zona Surpirenaica, Pirineos centrales)
(2008)This paper provides the first results of a structural study in a cross-section in the Central Pyrenees (South Pyrenean Zone, North of Biescas), bordered on the north by Palaeozoic rocks of the Axial Zone. The geometric ... -
Can the zircon origin be established from geochemical data alone? Insights from chlorite schists in the Ronda peridotites
(Sociedad Geológica de España, 2020)This study deals with the scarce chlorite schists scattered through the Ronda peridotites (Betic Cordilleras, Spain) related to the intrusion of granite dykes. Chlorite schists field data and the petrography, geochemistry ... -
Características de la red de diques graníticos intruidos en las peridotitas de Ronda (Cordilleras Béticas)
(2006)This work analyses, from the structural point of view, the granite dyke swarm in the R onda area. Structural features of granite dykes from outcrop to microscopic scale show that their intrusion is controlled by ... -
Características petrográficas y mineralógicas de birbiritas derivadas de las peridotitas de Ronda (Cordilleras Béticas)
(Sociedad Geológica de España, 2011)Por primera vez en las Cordilleras Béticas describimos, en este trabajo, la existencia y las principales características mineralógicas y petrológicas de birbiritas que son el resultado de un intenso metasomatismo de ... -
Caracterización geoquímica de las peridotitas del macizo de Sierra de Aguas (Málaga)
(Sociedad Geológica de España, 2004)In order to constraint geochemical differences related to the petrogenesis ofthe Ronda peridotites, major and trace elements combined with chondrite normalized REE patterns of the Sierra de Aguas Massif peridotites, near ... -
Caracterización geoquímica y encuadre geodinámico de las anfibolitas y eclogitas del manto de Ojén, Complejo Alpujárride, Cordilleras Béticas
(Sociedad Geológica de España, 2009)Amphibolite bodies with eclogite relics are found interlayered between the Ojen nappe´s crustal rocks, below the Ronda peridotites of the Betic Cordilleras (southern Spain). We present a geochemical study of such ... -
Caracterización mineralógica y química de la granodiorita de Los Pedroches en la zona de cizalla dúctil de Conquista
(Sociedad Geológica de España, 2001)The northern edge of Los Pedroches granodioritic pluton is deformed by the Conquista fault, a right ductile shear zone with a normal component. Consecuently, the rocks of this sector show gradual texture-structural ... -
Determinación de la naturaleza de la falla de Cerro Tajo (Macizo peridotítico de Carratraca) mediante termocronología de trazas de fisión
(Sociedad Geológica de España, 2004)Fission-track thermochronology has been applied to assess the nature of the tectonic contact of Cerro Tajo, near Carratraca (Málaga). Zircon fission-track ages support the idea of the extensional nature of the Cerro Tajo ... -
Diapirismo del manto inducido por delaminación en las peridotitas de Ronda (Cordilleras Béticas)
(Sociedad Geológica de España, 2004)The contribution of asthenosphere diapirs to the exhumation of Orogenic Lherzolites from the mantle to the Earth’s surface stands as a major issue in the evolution of orogenic belts. Structural and textural data from the ... -
Distribución de la deformación en granitoides sincinemáticos intruidos en condiciones transpresivas (Sanabria, Zona Centro-Ibérica, Macizo Ibérico)
(2007)The Sanabria Lake plutons, located in the Central Iberian Zone of the Iberian Massif, intruded in a dextral strike-slip fault bridge under transpressive conditions. The deformed zone underwent a strain partitioning process, ... -
El granitoide de Manzaneda, marcador del acortamiento NE-SW en el arco hercínico
(Sociedad Geológica de España, 1997)The Manzaneda granite (NW Spain) is located at the southern sector of the Calida Variscan arc. It shows a NW-SE elongated shape, and covers ah area of about 400 Km2, within thè «P/ló de Sapo» anticlinorium. It is a ... -
Estructura geológica en el borde oriental del Anticlinorio de Bilbao
(Sociedad Geológica de España, 1989)This paper provides new structural data from the Bilbao Anticlinorium, near Santurce (Basque Country). Lower Cretaceous rocks within this region show bed-parallel-thrusts, which are deformed during the development of the ... -
Estudio de la fábrica magnética (ASM) y modelo de emplazamiento del macizo granítico de Trives (Galicia)
(Sociedad Geológica de España, 1997)The Trives granodiorite (NW Spain) is located within the metasediments of the «Olio de Sapo» antiform (northern part of the Iberian Variscan belt). The zonation of bulk low-field susceptibility indicates a more basic ... -
La evolución tectonometamórfica del Manto de Los Reales y el Maláguide, al oeste de Málaga
(Sociedad Geológica de España, 1991)In the Western part of the Betic Cordillera the Malaguide Complex overlies the Los Reales Nappe. From lithological, metamorphic and structural features the Malaguide Complex and the Los Reales nappe can be included in ... -
Geometría de cabalgamientos asociados a flancos normales de pliegues (N de Biescas, Zona Surpirenaica)
(2008)Paleogene rocks crop out in the South Pyrenean Zone as a flysch sequence of calcarenites and mudstones showing asymmetric south-verging chevron folds, with associated axial plane foliation. Thrust faults are generated ... -
Implicaciones geológicas de la presencia de mármoles con escapolita en el Sinclinorio de Vizcaya
(Sociedad Geológica de España, 1997)We report by the first time the finding of scapolite-bearing marbles in the Southern limb of the Biscay Synclinorium (Basque-Cantabrian basin). Marbles are found as layers or fragments in Triassic evaporites. I. Evaporitic ... -
Interpretación geodinámica del metamorfismo de ultra-alta presión en las peridotitas de Ronda
(Sociedad Geológica de España, 2003)We repon the occurrence of several minerals representative of high to ultra-high pressure metamorphism in the Sierta Bermeja massif of the Ronda peridotites (Betic Cordilleras, southern Spain). Some of them, like graphite ... -
Jade nefrítico en las peridotitas de Ronda
(2009)We report the presence of nephrite jade, a semiprecious gemstone, in the Ronda peridotites (Betic Cordilleras, southern Spain). These rocks are formed by submicroscopic to fine-grained aggregates of tremolite with felted ... -
Metamorfismo y geotermobarometría de la Unidad de Yunquera en Casarabonela (Complejo Alpujárride, Málaga)
(Sociedad Geológica de España, 2004)The rocks of the Yunquera Unit (Alpujárride Complex) record two stages, at least, of recrystallization at different P-T conditions defined by the mineral associations: a) Grt + Pl + Ms + St + Ky + Qtz, and b) Grt + Pl + ...
