Thesis Collection
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Browsing by Author "Oyarzun, Roberto"
Now showing items 1-7 of 7
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Caracterización mineral del granito peralumínico de Logrosán (Cáceres, España)
(Universidad de Huelva, 2011)El granito de Logrosán (Cáceres, España) comprende un complejo stockwork intragranítico de venas de Sn-W y venas de fosfato periféricas encajadas en el Complejo Esquisto Grauváquico (CEG). El emplazamiento del granito de ... -
Contrasted evolution of the western and eastern Mediterranean since Neogene Time
(Sociedad Geológica de España, 1991)La evolución del Mediterráneo después del climax del orógeno Alpino, se sue/e explicar por medio de zonas de subducción resultado de la convergencia entre Africa y Eurasia. Sin embargo, los sectores occidental y oriental ... -
El origen del azufre en mineralizaciones filonianas en el centra de la Península Ibérica
(Sociedad Geológica de España, 1995)Sulphur isotope data from several base metals-Ba-(F)-(Ag) and Ag-base metals vein-type deposits in the Central Iberian Zone o f the Hesperian Massif suggest a magmatic and /or metasedimentary origin o f this ore-forming ... -
First lead isotopic data for cinnabar in the Almadén district (Spain): implications for the genesis of the mercury deposits
(Sociedad Geológica de España, 2004)The Almadén district constitutes the largest and probably the most intriguing mercury concentration in the world. This paper reports the first lead isotope compositions of cinnabar from the district. Whole samples and ... -
La actividad metalogénica durante el Tardihercínico en el centro de España: una visión desde cinco localidades tipo
(Sociedad Geológica de España, 1995)The most outstanding metallogenic period in central Spain took place during the so-called lateHercynlan episode. This episode was characterized by widespread extensional conditions resulting from the collapse of an ... -
The largest mercury anomaly on Earth (Almadén, Spain): a mantle-derived feature?
(Sociedad Geológica de España, 1998)The Almadén Hg deposits are associated with deeply altered magmatic rocks, which main features are briefly described here. Geochemical, including isotopic, data on these rocks suggest that they are derived from deep mantelic ... -
Utilización de imágenes SIR-C en el estudio de lineamientos en las unidades volcánicas Cretácicas y Terciarias de la región de Coquimbo (Chile): el sector de Quebrada Marquesa
(Sociedad Geológica de España, 1995)The remote sensing Radar images offer to the geologist an outstanding tool allowing a better definition of the estructural features of a region. The flights of the space shuttle Endevour in 1994 allowed experimentation ...
