Browsing by Subject "Galicia"
Now showing items 1-20 of 21
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Análisis de isótopos de oxígeno y edad Rb-Sr del plutón zonado de Caldas de Reyes (Galicia, España)
(Sociedad Geológica de España, 1989)Oxygen and strontium isotope composition of the external and external-leucocratic facies suggest an origin essentially by partial meeting of crustal materials for the postkinematic Caldas de Reyes granitic s.l. massif. On ... -
Cronología de la transgresión holocena en la Ria de Foz, (Lugo, Galicia, España)
(Sociedad Geológica de España, 1999)The Flandrian or postglaciar transgression in the coast of Galicia, (NW of Spain), caused the flood of the final parts of the Atlantic Galician river systems with the consequent formation of the Galician Rías. The advance ... -
Deformación extensional de las unidades alóctonas superiores de la parte oriental del Complejo de Ordenes (Galicia)
(Sociedad Geológica de España, 1991)A penetrative extensional tectonics, which includes the existence of three important detachments, has been identified in the Sobrado area, in the eastern margin of the Ordenes Complex. It is related to the extensional ... -
Las diaclasas y diques en el Plutón de Caldas de Reyes (Provincias de La Coruña y Pontevedra. España)
(Sociedad Geológica de España, 1990)This paper deals with the role of the arrangement of joint systems and dykes of the latehercynian Caldas de Reyes granitic pluton. Despite of the role of late and posthercynian deformation phases on the genesis of the joint ... -
Dinámica litoral y erosión en la ría de El Barquero: factores antrópicos y procesos naturales
(Sociedad Geológica de España, 1999)The Ria of El Barquero, in the north-western coast of Spain, has only recently been altered by anthropogenic structures, so that effects of such interferences in the natural dynamic processes of the coast are in some way ... -
El campo pegmagmático de Forcarei Norte y las míneralizaciones de fosfatos asociadas (Galicia, España)
(Sociedad Geológica de España, 1996)The aim of this paper is to present the most important mineralogical, textural and petrological characteristics of the Forcarei Norte pegmatite field. On the basis of on their internal structure, mineralogical association ... -
El campo pegmatítico de Lalín y sus mineralizaciones de Sn, Ta y Nb asociadas (Pontevedra, Galicia, España)
(Sociedad Geológica de España, 1996)The aim of this paper is to present the most important mineralogical, textural and pretrological characteristics of the Lalin pegmatite field. We can establish two different types of zoned pegmatites, with Li and without ... -
Estructura magnética de los macizos graníticos de Guitiriz y Hombreiro-Santa Eulalia de Pena (Lugo)
(Sociedad Geológica de España, 1991)The magnetic susceptibility anisotropy of 202 sites from the Variscan Guitiriz and HombreiroSanta Eulalia granites (Galicia, Spain) has been measured. The magnetic fabric is directly related to the field structures. The ... -
Evolución tectonotermal de la Unidad de Santiago (Complejo de Ordenes): un ejemplo de subducción eo-hercín¡ca y descompresión sin-colisional
(Sociedad Geológica de España, 1992)The syn-D2 uplift of the Santiago Unit, inmediately after of the high-pressure eo-Hercynian metamorphic event, cause a markedly decompressive-slightly prograde P,T,t path. This path very likely suggests that the majority ... -
Granates en el Plutón de Caldas de Reyes (Provincia de La Coruña y Pontevedra. España)
(Sociedad Geológica de España, 1990)In the late-hercynian calc-alkaline pluton of Caldas de Reyes, garnets occur scarcely in the most evolved facies. In this paper we intend to characterize their typology. We have been able to distinguish two different types ... -
La continuación de la Cordillera Cántabro-Pirenaica en el borde atlántico de la Península Ibérica
(2010)The Cantabro-Pyrenean ranges extend in the Iberian Atlantic Margin through a strike-slip corridor that terminates at the North Portuguese Mountains. This transfer fault zone is defined as the Orense Corridor, a feature ... -
Metapelitas de alta presión de la Unidad de Santiago (Complejo de Ordenes, NO del Macizo Ibérico)
(Sociedad Geológica de España, 1992)A high - pressure - low - to intermediate temperature eo - Hercynian metamorphic event characterizes the tectonothermal evolution of the Santiago Unit, in the western margin of the Ordenes Complex. P-T conditions fo r the ... -
Neotectónica en el norte de Galicia: Fallas inversas de actividad cuaternaria en la cuenca fluvial del alveolo de Alfoz, Lugo
(2006)In the weathered depression developed on the A Toxiza variscan granite (northern Galicia) two high angle reverse faults have been located putting the granitic basement over pleistocene fluvial deposits. Several inferred ... -
Neotectónica en el norte de Galicia: Fallas inversas de actividad cuaternaria en la cuenca fluvial del alveolo de Alfoz, Lugo
(2006)In the weathered depression developed on the A Toxiza variscan granite (northern Galicia) two high angle reverse faults have been located putting the granitic basement over pleistocene fluvial deposits. Several inferred ... -
Procesos degradativos en antiguas superficies grabadas sobre granitos: Indicadores de magnitud y patrones de estado
(Sociedad Geológica de España, 1999)This paper analyzes the so called, (pilas, gnammas, vasque, etc.), small concavities that retain the water of the rain/ runoff that develops etching processes. Some authors support the beginning of the form already undersoil/ ... -
Relaciones de fases del gneis Ollo de Sapo en la región supersólidus y sus implicaciones en la génesis de los leucogranitos peralumínicos de Galicia
(Universidade da Coruña: Instituto Universitario de Geología, 2000-12) -
Reseña del libro de Nadia A. de Cristóforis, Bajo la Cruz del Sur: gallegos y asturianos en Buenos Aires (1820-1870)
(Universidad de Huelva, 2013) -
Síntesis de la evolución geomorfológica de Galicia Occidental
(Sociedad Geológica de España, 1997)This paper presents an actualization of the ideas about the geodinámicaI and geomorphological setting of Western Galicia, as well as the cenozoic evolution, and a model were the evolutionary sequence is proposed. The present ... -
Sobre la presencia de Bastnaesita y su papel en la evolución geoquímica del Complejo Alcalino del Galiñeiro (Galicia, España)
(Sociedad Geológica de España, 1992)In this papaer were port the existence of bastnaesite (REE-fhjocarbonate) in the Galiñeiro alkaline complex (Pontevedra, Galicia); we show an aproximaron to ist chemical composition by electron -microprobe, and we discuss ... -
Las tierras raras en el Plutón de Caldas de Reyes: influencia de la mineralogía en su evolución
(Sociedad Geológica de España, 1988)This paper deals with the role of the mineral phases in the evolution and behaviour of the REE elements in the Caldas de Reyes Zoned Pluton (Galicia-Spain). The study of normative and chemical relationships reveals the ...