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Geogaceta -- Nº 05, (1988)
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Primeros datos sobre el esqueleto postcraneal de Protapirus cetinensis (Tapiridae)
(Sociedad Geológica de España, 1988)The tapirid species Protapirus cetinensis was recently described upon a few dentary remains coming from the sites of Cetina de Aragón (Zaragoza) y Valquemado (Cuenca). The excavation carried out in summer 1987 in Valquemado ... -
Presencia de la discontinuidad sárdica en la Zona Cantábrica
(Sociedad Geológica de España, 1988)The «sardic unconformity» (near the Cambrian-Ordovician boundary), ocurring in the middle part of the Armorican Quartzite-Barrios Fm., is for the first time reported in the Cantabrian Zone. A close comparison with the ... -
Morfología de un margen de plataforma carbonatada en el Carbonífero Superior de la Zona Cantábrica
(Sociedad Geológica de España, 1988)The main aim of this paper is to describe a intrashelf carbonate margin in the Westphalian rocks of the Ponga Nappe Unit (Cantabrian Zone). lt concerns to the Escalada limestone Fm. at the Tiatordos height, near Beleño village -
Los castores del Pleistoceno medio de Atapuerca (Burgos, España)
(Sociedad Geológica de España, 1988)This work is a description of the Castor fiber fossils remains found in the Karst fillings of Atapuerca (Burgos, Spain) -
La utilización de la anisotropía de la susceptibilidad magnética (ASM) en el estudio de la deformación finita: ejemplo en la zona milonítica de Cap de Creus (Catalunya)
(Sociedad Geológica de España, 1988)The magnetic susceptibility anisotropy (MSA) of the Roses Granodiorite has been studied The magnetic fabric is due to the shear zones that affect these rocks. In this sense, the kmin axes of the MSA are paralel to the ... -
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 ... -
Las facies de plataforma carbonatada del Jurásico inferior y medio en la Sierra de Cazorla (Zona Prebética)
(Sociedad Geológica de España, 1988)The Lower and Middle Jurassic sediments of the Prebetic Zone correspond to the first phase of development of a shallow-water platform. They constitute a transgressive depositional sequence containing some minor ... -
Las deformaciones hercinianas tardías en la región de Santa María la Real de Nieva (Sistema Central Español)
(Sociedad Geológica de España, 1988)The precambrian and paleozoic materials of Santa María la Real de Nieva outcrop has been affected by two Hercynian shear systems which developed after the main deformation phases and the intrusion of the granite rocks. The ... -
La ankeritización en las dolomías del Aptiense en el entomo de las mineralizaciones Pb-Zn en el NO de Cantabria
(Sociedad Geológica de España, 1988)The study of iron content in dolomites from northwestern Cantabria is used to know the ankeritization degre in dolomites but also the biggest or lowest proximity to Pb-Zn mineralization, provided that these mineralizations ... -
Interferencia de plegamientos alpinos en el tercio occidental del Arco Vasco (Cuenca Vasca)
(Sociedad Geológica de España, 1988)On the occidental part of the Basque Arch (Basque Bassin), the Trias Keuper outcrops network deal With the intersection of a pre-Albian «en echelon» folding With the tertiary alpine deformation -
Gabros coroníticos en el macizo cristalino de Toledo
(Sociedad Geológica de España, 1988)The Bastida gabbros massif is formed by olivine norites and piroxene gabbronorites. The metamorphic conditions are those of the intermediate to Iow pressure granulite facies, producing the coronitic texture that exhibit ... -
Fracturación en los metápodos de Hipparion
(1988)The fractures observed in a sample of 96 fossil metapodes of Hipparion are studied in this paper. The specimens come from several sites of different Cenozoic basins of Spain. All the bones but one have at least one ... -
Una modificación al modelo genético para la Formación Molicias (Tortoniense superior, Depresión de Guadix, S de España)
(Sociedad Geológica de España, 1988)The Molicias Formation has traditionally been interpreted as being a basinward prograding, platform-talus-basin system, deposited in a relatively rising-sea-level environment. The proposed modification to this model is ... -
Sobre el adelgazamiento mioceno del Dominio Cortical de Alborán, el Despegue Extensional de Filabres (Béticas orientales)
(Sociedad Geológica de España, 1988)In the Alboran Domain, the Alpujarride/Nevado-Filabride major boundary is a brittleductile and brittle detachment (Filabres Extensional Detachment, FED) which thinned the Nevado-ñlabride complex during the Miocene. The FED ... -
Sobre la existencia de dos cuñas de corteza en Galicia oriental según resultados de sísmica profunda. Implicaciones geodinámicas
(Sociedad Geológica de España, 1988)A silice of granulites has been interpreted from deep seismic sounding data at a depth of 8 km in eastern Galicia (NW Spain). This leads to the definition of the sole Hercynian thrust and two different crustal wedges that ... -
Significado paleogeográfico de las texturas y acumulaciones de carbonatos en perfiles edáficos de la Unidad Intermedia del Mioceno de la Cuenca de Madrid (prov. de Guadalajara)
(Sociedad Geológica de España, 1988)The presence as well as types of pedogenic carbonate deposits within miocene formations of the NE Madrid Basin are mainly linked to two major differentitated environments: a) proximal alluvial fan environments and b) distal ... -
Sedimentos fluvio-lacustres en la base de la megasecuencia Hauteriviense Sup,-Aptiense, borde meridional de la cuenca de los Cameros, provincia de Soria
(Sociedad Geológica de España, 1988)The Hauterivian-Aptian siliciclastic Megacycle, continental in origin, has been divided into four litoestratigraphic formations, grouped into two depositional sequences that are separated by unconformities. The first ... -
El Muschelkalk en el SW de la provincia de Soria
(Sociedad Geológica de España, 1988)Muschelkalk facies in the studied area are anomalous inside the Iberian Ranges. Reduced thickness, continental influence and the different age (Karnian) are the three main aspects. The basin margin for this area has been ... -
El Cretácico superior de la Sierra de las Moratillas (Prebético externo. Murcia)
(Sociedad Geológica de España, 1988)Nine litostratigraphic units are described in late Cretaceous of Sierra de las Moratillas (Murcia, Prebetic zone). Most of them find their equivalent inside Southern Iberian Ranges, others show little differences and just ... -
Edad de las formaciones travertínicas del flanco meridional de la Sierra de Mijas (provincia de Málaga, Cordilleras Béticas)
(Sociedad Geológica de España, 1988)Three masses of travertines located on the southern flank of the Sierra de Mijas (Betic Cordillera) have been dated by absolute dating methods: E.S.R. and Uranium Series (ThU). The results relates the age of travertines ...
