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Browsing Geogaceta -- Nº 14, (1993) by Title
Now showing items 5-24 of 47
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Las barras de arena infralitorales del Maresme: formación y cronología
(Sociedad Geológica de España, 1993)Two different types of sand bodies characterize the Maresme Coast (NE Spain). A longshore submarine sand,bar built by theTordera river output is 6 km long and progressively deepens to 8 m depth. Four littoral bar systems ... -
Un borde de plataforma Urgoniana al NE de la provincia de Alicante (zona Prebética)
(Sociedad Geológica de España, 1993)During late Barre mian-early Aptian times, the development of a carbonate platform took place, with deposit of rudistid and corallim estones in NW of Alicante province (SE of Spain). In the Benidoleig-Jalón area, a detailed ... -
Breve introducción al estudio de los materiales geológicos metalúrgicos albacetenses
(Sociedad Geológica de España, 1993)We shall try to do a short synthesis with this comm unication, which will of use a future study about industrial mineralizations in Albacete. For this purpose, we shall establish a sucession of groups concerning the ... -
Características geoquímicas de las aguas de infiltración de la Cueva de Nerja (Málaga)
(Sociedad Geológica de España, 1993)152 water samples have been collected in three sites of the Nerja Cave aquifer system: (a) inside the cave, (b) in a nearby pumping well, and (c) in the Maro spring which is the aquifer's main discharge point. The analytical ... -
Caracterización geoquímica de los depósitos ferromanganesíferos de Las Herrerías (SE Ibérico)
(Sociedad Geológica de España, 1993)Various types of ferromanganese deposits, of Upper Miocene age, form part of the Las Herrerías mineralization (Betic Cordillera, SE Spain): Oxidized beds, crusts, hydrothermal pipes and brecciatype structures, thin layers ... -
Ciclo Soltaniense-Rharbiense (Pleistoceno Superior-Holoceno). Secuencias comparadas entre el SW de España y el NE de Marruecos
Díaz del Olmo, Fernando; Borja Barrera, Francisco
(Sociedad Geológica de España, 1993)
An identification of the Soltanian (Upper Pleistocene) and Rharbian (Holocene) sequence in the Cadiz coastal is made in comparatidn with those of the Morocco coast, throwing de presence of "rubified de posits" of the upper ... -
Correlación litoestratigráfica de las evaporitas messinienses en las cuencas de Lorca y Fortuna (Murcia)
(Sociedad Geológica de España, 1993)The Messinian evaporite formations of Lorca and Fortuna basins may be linked along the exposures developed in the Guadelentín depression. Accordingly, the La Serrata Gypsum unit of the Lorca basin correlates with the "lower ... -
Corte balanceado de la Sierra Cantabria (cabalgamiento de la Cuenca Vasco-Cantábrica sobre la Cuenca del Ebro)
(Sociedad Geológica de España, 1993)On the transversal of Puerto de Herrera (Alava), the southern limit of the Basque-Cantabrian basin thrusts on the Ebro basin in favour of two thrusting sequences. The minimum shortening measured exceeds 35% with a 3.25 ... -
Datos preliminares sobre la geología de la isla Elobey Grande (Guinea Ecuatorial)
(Sociedad Geológica de España, 1993)The stratigraphic section of the island Elobey Grande in the Republic of Equatorial Guinea is briefly described. All the samples analized present tipical characteristics of the post-rift of the Equatorial Atlantic continental ... -
La desembocadura del río Ebro: variabilidad y cambios recientes
(Sociedad Geológica de España, 1993)Two years (1990/91) surveying the River Ebro Mouth system, has shown the relationship between fluvial dynamics and sedimentary forms. Two main situations,seem to be present: a sand spit during low fluvial regime,, and a ... -
Determinación de velocidades de flujo en acuíferos carbonatados alpujárrides mediante ensayos de dilución
(Sociedad Geológica de España, 1993)We have used the single borehole method for calculating the Darcy velocity in carbonate aquifers of diffuse flow system type. The tests have been based on the labelling of the whole water column in piezometers with a saline ... -
Los Eones y las Eras: una propuesta de nomenclatura
(Sociedad Geológica de España, 1993)The aim of this paper is to propose a homogenous terminology for geological Aeons and Eras, begining with names already santioned to be used for the most modern Aeon and its Eras. For this, Creek terms which seen most ... -
Estaurolita rica en Zn en las metapelitas de bajo grado de la Unidad de Salobreña (Complejo Alpujárride)
(Sociedad Geológica de España, 1993)Zn-rich staurolite has been found in a metapelite rock with low-grade metamorphic assemblage, in the Salobreña Unit (Alpujárride Complex, Betic Cordillera). The chemical composition (4-6 wt.% ZnO) and the textural relationships ... -
Estructura general de la corteza en una transversal del Mar de Alborán a partir de datos de sísmica de refracción-reflexión de gran ángulo. Interpretación geodinámica
(Sociedad Geológica de España, 1993)Results from three seismic refraction/wide-angle reflection profiles across the Alborán Sea outline a general structure of the crust, wich can be related to a detachment, simple shear, model of extension -
Estructuración sedimentaria de los cuerpos deltaicos holocenos del margen septentrional del mar de Alborán
(Sociedad Geológica de España, 1993)In three deltaic areas of northem Alboran Sea margin, the different depositional bodies that establish the sedimentary structure of the holocene progradational wedge has been determinated by high resolution seismic profile ... -
Estudio preliminar sobre las facies volcaníclásticas de la Formación Zamoranos (Trías Subbético)
(Sociedad Geológica de España, 1993)In some outcrops o f the Trias o f facies Keuper in the Central Subbetic Zone has been defined the Zamorano Formation, dated as Norian. In this formation is possible to identify conglomerates with pebbles of different ... -
Evolución de la dinámica sedimentaria reciente en la plataforma continental septentrional del Golfo de Cádiz
(Sociedad Geológica de España, 1993)The study of the present granolumetric facies plot of surficial sediment sample and high resolution seismic profile analysis, allow us to establishment the general aspects of the Holocene sediment dynam ic evolution in the ... -
Fallas de despegue extensional miocenas en el área de Sierra Tejeda (Béticas centrales)
Alonso Chaves, Francisco Manuel; García Dueñas, V.; Orozco, Miguel (Sociedad Geológica de España, 1993)
In the Sierra Tejeda area, NE Malaga, the existence of detachments and low angle normal faults has been recognized. The faults developed during three Miocene extensional events of AquitanianBurdigalian, probably Langhian ... -
La geología marina desde la perspectiva del Instituto Español de Oceanografía
(Sociedad Geológica de España, 1993)The "Instituto Español de Oceanografía" (Spanish Oceanographic Institute) is a body of the "Ministerio de Agricultura, Pesca y Alimentación" (Food and Fisheries Department). It engages in research in many oceanographic ... -
Geomorfología de la península del Cabo Shirreff. Isla Livingston. Shetland del Sur. Antártida
(Sociedad Geológica de España, 1993)The geomorphological exploration and mapping of Cape Shirreff area was carried out during the 1992/93 Spanish Antartic Expedition in Livin gston Island. In this area two main systems of lanforms were recognized. A) Marine ...
