Browsing by Subject "Canary Islands"
Now showing items 1-20 of 51
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3He/4He ratios in and around Teide volcano, Tenerife, Canary Islands, Spain
(Sociedad Geológica de España, 1996)Helium-3 emission spatial distribution in and around Teide volcano, Tenerife, Canary Islands, has a quite different pattern from other stratovolcanoes which show usually a decreased trend for the 3He/ 4He with respect to ... -
A new miocene–pliocene ichnotaxon for vermetid anchoring bioerosion structures
(Frontiers Media, 2022)A revision of Renichnus arcuatus Mayoral, 1987, the vermetid attachment etching trace fossil (fixichnia), is presented here with an emended diagnosis. Renichnus arcuatus should be used only for nested reniform ... -
Alineaciones de centros volcánicos en la isla de Tenerife
(Sociedad Geológica de España, 1994)A mathematical method has been used to determine the alignments of effusive centers in the Recent Series of the Tenerife island. The strike of these lineations varies from one sector to another, in this way, on the ... -
Aminocronoestratigrafía e historia térmica de los depósitos cuaternarios de las Islas Canarias (España). Resultados preliminares de la Isla de Lanzarote
(Sociedad Geológica de España, 1996)This paper deals on the first results of an Amino acid racemization dating campaing carried out on coastal and archaeological mollusca deposits of Lanzarote and Gran Canaria islands (Canary Islands, Spain). First results ... -
Batimetría Multihaz del margen insular de Tenerife (Islas-Canarias): Proyecto TEIDE-95
(Sociedad Geológica de España, 1996)The oceanographic cruise Teide-95 was carried out by the Instituto Español de Oceanografía. The main objetive was the analysis of the ocean floor around Tenerife island. In order to determinate the bathymetry of this area, ... -
Cambios en la dinámica litoral y nivel del mar durante el Holoceno en el Sur de Iberia y Canarias Orientales
(Sociedad Geológica de España, 1996)The interaction between global factors C'global" glacio-eustatic sea-level rise) and regional factors (tectonic trend, oceanographic factor) is analyzed in different areas of the Iberian and Canary Island littoral. Sea-level ... -
Características composícionales y procesos de evolución magmàtica en el Complejo Volcánico Central (I y II) de Fuerteventura (Islas Canarias)
(Sociedad Geológica de España, 1996)The Central Volcanic Complex / (CVC-I) consists mainly of mildly alkaline basalts, many of them ankaramitic. The compositional differences observed are explained by fractionation and extraction (rates between 20% and 30%) ... -
Características composicionales y procesos de evolución magmàtica en el complejo volcánico sur-lll de Fuerteventura (Islas Canarias)
(Sociedad Geológica de España, 1996)The Southern Volcanic Complex III is form ed by basalts, a lesser am o u n t o f trachybasalts and some scarce trachytes, a ll o f them m ild ly alkaline. Crystal fra ction ation w a s in an early stage, controle d by ... -
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 ... -
Características geoquímicas de las carbonatitas de la Pta. del Peñón Blanco, Fuerteventura. Canarias
(Sociedad Geológica de España, 1991)In this paper the main geochemical characteristics of the carbonatites located at Pta. del Peñón Blanco are described. They are calcite carbonatites with typical high concentrations of Sr, Ba and REE Some of them show a ... -
Características mineralógicas de una sóvita pirofanítica de la Pta. del Peñón Blanco, Fuerteventura, Canarias
(Sociedad Geológica de España, 1992)A carbonite vein composed by caldte and pyrophanite is described. Pyrophanite, a very unusual mineral phase in this kind of rocks is formed at low temperatures. This vein is classified as a late carbonatite -
Características sedimentológicas de los materiales volcaniclásticos de la zona de La Fortaleza (Tenerife, Islas Canarias, España)
(Sociedad Geológica de España, 1995)Near the Teide volcano National Park (La Fortaleza area), some Plio-Quaternary pyroclastic materials with different types of sedimentary structures are preserved. The outcrop is made up of coarse pyroclastic materials ... -
Caracterización mineralógica e identificación de las áreas fuentes de los sedimentos actuales del istmo de jandía (Fuerteventura)
(Sociedad Geológica de España, 1999)The grain size, calcimetry and thin section studies, have been used to characterised the actual eolian sediment ofjandia isthmus. Nevertheless the application of the Rietveld method for the precise quantification of the ... -
Caracterización petrográfica de los travertinos aragoníticos del Barranco de Azuaje (Gran Canaria)
(Universidad de Huelva, 2012)El Barranco de Azuaje está situado en el NE de la isla volcánica de Gran Canaria. El barranco se formó por incisión sobre depósitos volcánicos de edad inferior a 5,5 Ma. La presencia de depósitos de travertino situados ... -
Contenido en foraminíferos de los depósitos eólicos del istmo de Jandia (Fuerteventura)
(Sociedad Geológica de España, 1999)The foraminifera content in eolian deposits of Jandia isthmus is characterised/m this work, by the determination of the abundance index and the identification of the benthic foraminifera taxons present. Finally, the ... -
Datos sobre la geología y petrología del Macizo de Amanay, Fuerteventura, Canarias
(Sociedad Geológica de España, 1989)The Amanay Massif in the island of Fuerteventura is built up by a series of hypoabyssalsubvolcanic alkaline rocks (ultramafics, gabbros and syenites) intruded by several basaltic dyke-swarms of regional extension. The ... -
Desarrollo de un sistema de soporte a la decisión para optimizar la planificación y gestión de los residuos sólidos urbanos en zonas insulares, basado en dinámica de sistemas y teoría de la decisión multicriterio (Fuzzy Topsis)
(Universidad de Huelva, 2021)La mejora de la gestión de los residuos sólidos urbanos (RSU) es un tema importante para la sostenibilidad de cualquier territorio, y más importante aún en islas turísticas. Baleares y Canarias constituyen casos de ... -
Distribución de los diques sálicos del Norte de la isla de La Gomera
(Sociedad Geológica de España, 1999)The distributidn of felsic dykes on La Comera northern area corresponds to several swarms. The first radial dyke swarm is centered on the Tamargada area. The second radial dyke swarm center, located farther west, south of ... -
Distribution and origin of soil gas C02 and CH4 in and around Cañadas caldera, Tenerife, Canary Islands, Spain
(Sociedad Geológica de España, 1996)The distribution and origin of soil gas C 0 2 and C H 4 were investigated to have abetter understanding on the levels of diffuse degassing at the surface environnent of Cañadas caldera (Tenerife, Canary Islands). Soil gas ... -
Edad de los diques sálicos del Norte de la isla de La Gomera
(Sociedad Geológica de España, 2001)Several trachytic and phonolitic, radial and conical dyke-swarms crop out on the La Gomera northern region. The first age data obtained situate the intrusion episodes coinciding in time with the extrusion of the Old Basalts. ...