Thesis Collection
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Browsing by Author "Muñoz, Mercedes"
Now showing items 1-14 of 14
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Características petrológicas y edad K-Ar de las sienitas-nefelínicas del Morro del Recogedero (Fuerteventura,Islas Canarias)
(Sociedad Geológica de España, 1996)The nepheline syenites from the Morro del Recogedero outcrop represent the fractionated end member of the alkaline gabbro-ijolite associated rocks. Two K-Ar ages for the nepheline syenite rocks have been obtained. One of ... -
Diferencias mineralógicas y geoquímicas del vulcanismo inicial de Fuerteventura
(2008)The initial growth stage of the Fuerteventura Island is represented by submarine, transitional and subaerial volcanics. Among the submarine types, two can be distinguished: a basaltic (s.l.) one, and a basanitic one. The ... -
Emplazamiento en una zona de cizalla dúctil - frágil transtensiva para el Plutón de Pájara, Fuerteventura, Islas Canarias
(Sociedad Geológica de España, 1996)The mésostructures within the host-rocks as well as the internal deformation ofthé Pájara Pluton in Fuerteventura, allow the definition of a N 5-15 E directed ductile-brittle transtensive shear-zone, that conditioned the ... -
El enjambre filoniano básico intrusivo en el Complejo plutónico Táliga-Barcarrota (Ossa-Morena, Badajoz)
(Sociedad Geológica de España, 1991)Two families ofdykes are distinguished in the Ta/iga-Barcarrota area with directions NW-SE and E-W (the younger one). Chemical affinity is tholeiitic shifting from 01+Hy normative in the first to Q+Hy normative in the ... -
Evidencias de mezcla de magmas en el Edificio volcánicosubvolcánico de Betancuria (Fuerteventura, Islas Canarias)
(Sociedad Geológica de España, 1996)The volcanic subvolcanic Betancuria edifice belongs to the upper part of subaerial Miocene volcanic serie. It is made of evolved basalts (mainly trachybasalts), polimictic welded tuff and trachyandesytetrachysyenite annular ... -
Existencia de diques y tobas volcánicas relacionadas con la asociación alcalino-carbonatítica de Fuerteventura (Islas Canarias)
(Sociedad Geológica de España, 2002)In this work, the existence of volcanic tuffs and dykes related to the alkaline-carbonatitic association is, for the first time, revealed. The characteristics of the fragmentary materials, the possible processes involved ... -
Las rocas ultramáficas de la asociación alcal i no-car bonatítica del plutón de Montaña Blanca-Milocho, NW Fuerteventura, Islas Canarias. Caracterización e implicaciones genéticas
(Sociedad Geológica de España, 2002)This work describes the field relationships, petrography, mineralogy and geochemistry of ultramafic rocks (clinopyroxenites) belonging to the alkaline-carbonatitic association that occurs in the periphery of the Montaña ... -
Mineralogical and geochemical characteristics of gabbros in the Los Molinos area, Fuerteventura (Canary Islands)
(Sociedad Geológica de España, 2013)Gabbros of Los Molinos area crop out in the northwest part of Fuerteventura (Canary Islands).They are formed by different types of gabbros, and their mineralogy and geochemistry are presented in this work.The results indicate ... -
Presencia de mineralogías ricas en Zn como evidencias de la actividad hidrotermal enzonas de cizalla extensionales (Complejo Nevado-Filábride, Béticas)
(Sociedad Geológica de España, 1993)Late Zn-rich assemblages have been found in several lithilogies of the Bédar-Macael unit and upper part of the Calar-Alto unit (Nevado-Filabride Complex). The nowadays brittle contacts between the nevado-filábride and ... -
Relación estructural entre los cuerpos peridotíticos situados al Norte y al Sur del Estrecho de Gibraltar
(Sociedad Geológica de España, 1994)The peridotite bodies of the Bedes and Rif, on either side of the Strait of Gibraltar, are intercaled among the highest units of the Alpujarride complex. Before Miocene times, they must have constituted an uitramaficsiab ... -
Relaciones de campo y geoquímica de las carbonatitas de Esquinzo-Agua Salada, NW de Fuerteventura, Islas Canarias
(2008)Carbonatites are rather uncommon rocks, the origin of which still stands a subject of debate, especially regarding if they crystallize from primary carbonatitic melts from the mantle, or if they are generated, by some ... -
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, ... -
Significado de los cuerpos de leucogranitos y de los «gneises cordieríticos con litoclastos» asociados en la Unidad de Guadiaza (Alpujárrides occidentales, Béticas)
(Sociedad Geológica de España, 1990)The relationships and significant petrological features of the rock succession in the Guadaiza Unit are described. According to these data, the «cordierite gneisses with lithoclasts» appear as an extensional tectonic ... -
Xenolitos de metapelitas de alto grado en metabasitas: evidencia del emplazamiento en corteza continental del magmatismo básico Nevado-Filábride (Cordilleras Béticas)
(Sociedad Geológica de España, 1989)Xenoliths from the continental crust have been found in the olivine-bearing dolerites in the Nevado-Filábride complex. This material is partially melted and assimilated by the igneous rocks and therefore chemical and ...
