Thesis Collection
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Browsing by Author "Valenzuela Ríos, J. I."
Now showing items 1-11 of 11
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Composición mineral del volcanismo jurásico (pre-Bajociense medio) en la Sierra de Javalambre (Cordillera Ibérica, Teruel): datos preliminares
(Sociedad Geológica de España, 1995)The study of olivine, plagioclase, clinopyroxene and opaque minerals from volcanic rocks, which are included in volcaniclastic deposits o f pre -m id d le Bajocian age from the Sierra o f Javalambre (Iberian Chain, Teruel), ... -
Conodontos del Wenlock y Ludlow (Silúrico) del Valle de Tena (Pirineos Aragoneses)
(Sociedad Geológica de España, 1995)Silurian rocks from the Ten a Valley (Aragonian Pyrenees) are subdivided into three informal lithostratigraphic units: Unit «A», «Capas de Hoz», and Unit «8». The «Capas de Hoz» unit contains a rich conodont sequence ... -
Contribución de los magmatismos presentes en la Comunidad Autónoma de Aragón al Patrimonio Geológico
(Sociedad Geológica de España, 1996)The main features (composition, age and setting mode) for eight igneous units outcropping in the Aragon Autonomus Community are exposed in this paper, justifying their inclusion within the Geological Heritage. These units ... -
Datos preliminares sobre la fauna de vertebrados (Pisces) del Devónico Inferior de Nigüella (Cadenas Ibéricas)
(Sociedad Geológica de España, 1999)Two sections at Nigüella (IberianChains) have provided a rich and varied Lochkovian and Pragian (Early Devonian) fish microremais association. The outstanding occurrence of two levels loaded with fish remains braking the ... -
El magmatismo alcalino jurásico del sector SE de la Cadena Ibérica: composición y estructura
(Sociedad Geológica de España, 1996)Jurassic volcanic rocks are well exposed in the Sierra de Javalambre (Teruel)., This multiepisodic volcanism is mainly volcaniclastic , showing a large variety of fragmentation and emplacement mechanisms, and it is ... -
Emplazamiento tardihercínico de diques relacionados con el complejo plutónico de la Maladeta, Pirineo Axial
(Sociedad Geológica de España, 1997)The scope of this paper is the study of the chronological relationships between the Hercynian deformations and the emplacement of the Maladeta Plutonic Complex (M.P.C.) and related apical dykes. Both magmatic bodies were ... -
Interés como Patrimonio Geológico de dos magmatismos mesozoicos en la sierra de Javalambre (Teruel)
(Sociedad Geológica de España, 1996)This paper shows data concerning two different alkaline magmatisms that crop out in the Sierra de javalambre (Teruel). The older one is pre-Hettangian in age and consits of subvolcanic sills; in the Camarena de la Sierra ... -
Las rocas volcanoclásticas jurásicas de Albentosa-1 (Cordillera ibérica, Teruel): Mecanismos de fragmentación y emplazamiento
(Sociedad Geológica de España, 1995)In the Sierra de Javalambre a volcaniclastic outcrop (Albentosa-1) showing monomict volcanic breccia and polymict volcanic sandstone and breccia, with planar and festoon cross lamination, is analysed. Data suggest that ... -
Nota preliminar sobre la edad del paleovolcanismo jurásico de Javalambre (Cordillera Ibérica, Teruel)
(Sociedad Geológica de España, 1995)Two profiles near Javalambre Peak (Teruel) composed of carbonate and volcaniclastic rocks are described in detail and dated for the first time. The upper boundary of the volcanic rocks is date das Upper Toarcian, whereas ... -
Petrología, geoquímica y emplazamiento de diques de composición granodiorítica al sur del complejo plutónico de la Maladeta. (Zona Axial Pirenaica)
(Sociedad Geológica de España, 1997)A set of granodioritic dykes, related to the main intrusive episode of the Maladeta Plutonic Complex, is studied. These dykes, that follow the main cleavage strike, cut across deformed Paleozoic country rocks. Their ... -
Precisiones terminológicas entre mecanismos de fragmentación y emplazamiento de rocas volcanoclásticas
(Sociedad Geológica de España, 1996)Recent volc anic erup tion s have p ro v id e d firs t-h a n d data fo r the study o f «pyroclastic» deposit mechanisms. This study adds to the term «pyroclastic» a depositional meaning. As a result of this expanded meaning, ...
