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Browsing Geogaceta -- Nº 07, (1989) by Title
Now showing items 1-20 of 40
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Análisis estructural de las venas yesíferas del Cenozoico de Arnedo (La Rioja)
(Sociedad Geológica de España, 1989)The structural charasteristics of fibrous vein of gypsum are described. Two types appears in this area: a syntaxial veins with parabolically-shaped, and other in 'double antitaxial', perharps new model that it is proposed, ... -
Arrecifes Messinienses de Almería. Tipologías de crecimiento, posición estratigráfica y relación con las evaporitas
(Sociedad Geológica de España, 1989)Messinian reefs in the Almería area developed mainly as pinnacle and fringing reefs. Both types of reefs grade laterally, basinwards, to yellowish, silty marls and diatomites and clearly underlie the Messinian gypsum ... -
Características de la pared en foraminíferos aglutinados (Textularia laevigata d'Orbigny) del Mioceno del Penedés (Depresión Prelitoral Catalana)
(Sociedad Geológica de España, 1989)The study of agglutinate foraminifera (Textularia Iaevigata d'Orbigny) in the clay levels of «Can Rosell» section (Miocene-«Depresión Prelitoral Catalana») with SEM-EDS and RX difraction techniques, point out the selection ... -
Los castores del mioceno inferior de la Cuenca del Ebro (Sector Centro-OccidentaI)
(Sociedad Geológica de España, 1989)This work describe dental characters of beaver from Basin Ebro (Iower Miocene). In adition, sistematic and paleoecological aspects were discussed -
Cavidades kársticas con relleno de Calloviense Superior y Oxfordiense Inferior (Subbético Externo; Sierra de Estepa, provincia de Sevilla)
(Sociedad Geológica de España, 1989)Upper Callovian and Lower Oxfordian materials have been found in the area of Estepa (External Subbetic). Karstification of the underlying ooid limestones of the Middle Jurassic, would give rise to large and deep karstic ... -
Ciclos de compensación en las fosforitas de Horcajo de los Montes (Ciudad Real)
(Sociedad Geológica de España, 1989)The phosphorites of Horcajo de los Montes constitute channelled bodies wich fill an erosive scar located in the platform (gully). The filling of this scar is polycyclinal by means of small encasements of channels about 500 ... -
Conodontos de la Zona Ordovicicus (Ashgill) en la Caliza Urbana, Corral de Calatrava (Ciudad Real)
(Sociedad Geológica de España, 1989)The vertical range of fourteen conodont taxa from two sections of the Urbana Limestone of Corral de Calatrava is given. The association, referred to the Ordovicicus Zone (Ashgill), has been analyzed in multielemental ... -
Conodontos del Paleozoico Gomáride (Rif Septentrional, Marruecos). Nota preliminar
(Sociedad Geológica de España, 1989)A moderately tectonised stratigraphic section pertaining to the Ghomarides, NW of Tetuan, Morocco, is formed by platy limestones and slates, and contains interesting associations of conodonts of uppermost Silurian to upper ... -
Constitución tectono-estratigráfica del Corredor Blastomilonítico de Badajoz-Córdoba: nueva propuesta de subdivisión
(Sociedad Geológica de España, 1989)In this paper a new tectono-stratigraphic subdivision for the materials from the Badajoz-Córdoba Shear Belt based on field geology and P-T metamorphic analítical data is suggested. Five stacked slices with different ... -
El Corredor Blastomilonítico de Badajoz-Córdoba: un complejo orogénico de subducción/colisión durante la Orogenia Pan-Africana. Cinemática, dinámica e historia de levantamiento del apilamiento de unidades tectónicas
(Sociedad Geológica de España, 1989)The geotectonic (kinematics, dynamics and PTt trends) evolution of the BadajozCórdoba Shear Belt during Pan-African tectono-metamorphic events is interpreted in terms of understacking of tectonic slices from a subducting ... -
Datos estratigráficos y paleontológicos de la sucesión devónica del área del río Baliera (Zona Axial, Pirineos centrales españoles)
(Sociedad Geológica de España, 1989)In the Baliera river area, situated in the Axial Zone of the Central Pyrenees, the Mañanet Limestone which belongs to Sierra Negra subfacies, crops out. The paleontological contents of the limestone has allowed its datation. ... -
Depósitos mareales y de tormenta en la Formación Cuevas Labradas (Jurásico Inferior) al SO de Berlanga de Duero (Soria)
(Sociedad Geológica de España, 1989)Thee levels have been stablished in the sediments of the Cuevas Labradas Formation (SW of Soria province). These correspond to the tectosedimentary units III, IV and V proposed by Yébenes et al. (1988). Two environments ... -
Descripción y resultados preliminares de una red de observación para el control de un regadío con vinazas sobre el acuífero de la llanura manchega
(Sociedad Geológica de España, 1989)lt's described an installation to observe the water quality of the unasturated zone, located in a watering ground by means of vinazas under previous treatment and diluted in various level. Starting from the efectuated ... -
Diaclasas de tensión regionales en el Complejo Nevado-FiIábride y su relación con el contacto Alpujárride/Nevado-FiIábride (Sierra Nevada, Cordilleras Béticas)
(Sociedad Geológica de España, 1989)Nevado-Filábride rocks have been strained by a NW-SE principal set of systematic tension joints. The orientation of the least principal stress derived from the NevadoFilábride/Alpujárride contact fault gouge agree with the ... -
Eclogitas de la banda de Cizalla Badajoz-Córdoba (Suroeste de España). Datos petrográficos y significado geodinámico
(Sociedad Geológica de España, 1989)C-type eclogites occur within garnet-amphibo/ites of the Azuaga gneisses a/lochthon in the Badajoz-Córdoba shear belt (SW Spain). The eclogites were formed under conditions of ca. 600º C, > 73 Kbar, and record a complex ... -
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 ... -
Estructuras alpinas internas al Paleozoico del Manto de Gavarnie, Pirineo Central
(Sociedad Geológica de España, 1989)In the paleozoic materials of the Iower part of the Gavarnie Nappe «retronormal» faults appear, which are compatible with the tangencial compressives stresses and transalation movement of the nappe to the south. In the ... -
Estudio de determinados elementos traza en rocas carbonatadas del Aptiense, en el área de Novales (Cantabria)
(Sociedad Geológica de España, 1989)From test-borings 1 and 2 at the Novales area, both the ppm contents certain elements (Cu, Zn, Pb, Sr and Mn) and the Fe % in carbonate rocks af Aptian in the domains close to Esfalerita Galena mineralizations were determined ... -
Estudio de los contenidos de estroncio en las rocas carbonatadas del Cretácico Inferior del Noroeste de Cantabria (España)
(Sociedad Geológica de España, 1989)This paper tries to determine the strontium contents in different types of carbonated rocks thus setting up a series evolutionary patterns related to the dolomitization process. The evolution of these processes causes a ... -
Estudio de unas trazas icnológicas en el Cretácico inferior de San Vicen'e de Robres (La Rioja)
(Sociedad Geológica de España, 1989)A series of dinosaur footprints and trackways present on Lower Cretaceous lacustrine deposits of the Enciso Group at the NE border of the Cameros basin are ascribed to a group of theropods. Discriminatory criteria are used ...
