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Browsing Geogaceta -- Nº 03, (1987) by Issue Date
Now showing items 1-14 of 14
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Comments on the Cambrian biogeography of Spain
(Sociedad Geológica de España, 1987)The Cambrian faunas recorded in the different areas of the Hesperian Massif do not support evidences of a marked biogeographical differentiation in the Iberian Peninsula throughout this Period. The vertical variations shown ... -
Tectónica de bloques en el SE de España: aplicación de la teledetección a un límite de placas de tipo intracontinental
(Sociedad Geológica de España, 1987)The fracture pattern in Southeastern Spain can be explained in terms of block tectonics. A detailed analysis of satellite images leads to define the main fracture zones and domains as well as the internal crustal blocks. ... -
La sedimentación oolítica del Dogger de Mallorca: Un modelo de bajada carbonática de pie de talud retrogradacional
(Sociedad Geológica de España, 1987)The oolitic succession of Middle Jurassic in age of Malorca Island is interpreted as a retrogradational base-of-slope carbonate apron sequence. The stratigraphic sequence shows oolite megabeds, oolite turbidites and hemipelagites -
Características del metamorfismo hidrotermal del Complejo Plutónico de la Caldera de Taburiente (La Palma, Canarias)1987
(Sociedad Geológica de España, 1987)The Plutonic Complex cropping out in the Caldera de Taburiente is affected by a marked hydrothermal metamorphism, whose metamorphic peak conditions were reached in the upper-T part of the greenschist facies. A later ... -
Los roedores del yacimiento musteriense de la Cueva de Gabasa (Pirineo Aragonés), Interés paleoecológico
(Sociedad Geológica de España, 1987)The rodents of the Mousterian site Cueva de Gabasa (province of Huesca) have been studied in this report. The stratigraphical distribution of rodents has a paleoecological meaning in the karstic site -
Las rocas volcánicas neógenas de Nuévalos (provincia de Zaragoza)
(Sociedad Geológica de España, 1987)On the basis of petrological data, the ultra-alkaline character of the volcanics from Nuévalos is clearly pointed out. This character rejects any type of relationship with Permian and Mesozoic volcanic events. Furthermore, ... -
Nuevos datos sobre los macromamíferos turolienses de Crevillente (Alicante)
(Sociedad Geológica de España, 1987)New finds of large mammal fossils in Crevillente-2 (Alicante) increase the diversity of Lower Turolian macromammals in Spain. The site is equivalent in age to Piera (Vallés Penedés, Catalonia) whose faunal remains have ... -
Fósiles ordovícicos del NO de Adamuz (Córdoba): aportación paleobiogeográfica a la concepción del límite entre las Zonas Centroibérica y Ossa Morena durante el Paleozoico
(Sociedad Geológica de España, 1987)The Ordovician outcrop at NW Adamuz (Córdoba province), previously regarded as belonging to in the Ossa Morena Zone by some authors, contains several fossiliferous levels of Lower Llanvirn, Upper Llanvirn-Llandeilo and ... -
La subsidencia tectónica en la Cordillera Ibérica durante el Mesozoico
(Sociedad Geológica de España, 1987)The subsidence trajectories are built with two localities data from the Iberian Chain. Both curves show two rifting-tectonic subsidence cycles. The first one (Triassic-Jurassic) belongs to the development of the Celtiberian ... -
Estructuración del basamento mesozoico en Los Llanos de Albacete
(Sociedad Geológica de España, 1987)The Mesozoic basement of Los Llanos de Albacete Tertiary Basin shows a fracture grid with two main orientations, almost orthogonal: NE-SW orientation is preferential, causing the basement to be divided in several blocks, ... -
El sentido de desplazamiento de los Mantos Nevado-Filábrides
(Sociedad Geológica de España, 1987)The Veleta Unit and the Mulhacen nappe Group (Calar Alto and Bédar-Macael Nap pes) make up the Nevado-Filábride Complex. The westward movement of the both nappes occurred along NW to WSW trajectories. In the Sierra Nevada, ... -
Medida de la deformación de pliegues en el extremo oriental del Sistema Central español
(Sociedad Geológica de España, 1987)We propose an areal distribution for the second phase hercynian folds in the eastermost part of the Spanish Central System, based on their morphological charactheristics. The analysis of these data allows us to calculate ... -
Sedimentación marina somera en el carbonífero de la zona sur-portuguesa
Moreno Garrido, María Carmen
(Sociedad Geológica de España, 1987)
Sedimentary secuences deposited in shallow marine shelves appear, locally, in the «Culm facies» of the South-Portuguese Zone. These siliciclastic shelves were developped in relation with erosion of volcanic elevations -
Orientaciones de las estructuras de plegamiento en un sector de la Cordillera Ibérica
(Sociedad Geológica de España, 1987)In the area dealt with here, the large folds show different directions that may be grouped into two main sets: the most important correspond to the called "Iberian directions», around 130º E, and the second to the «Guadarrama ...
