Los filones plumbíferos de Linares (Jaen) son continuos hasta el paleocaliche de la base del Trías

El area de Linares (Jaen) pertenece al diptrito minero de Linares-La Carolina. caracterizado por filones de ankerita y galena, pri~icipalmente. de gran longitud y exteniion vertical, encajados en materiales hercinicos. Cerca de Linares, entre los porzos La Esmeralda y San.Juan puede observarse como todos los constituyentes del relleno de los Filones del rocalo corian igualmente al paleosuelo carbonatado de la base del rrias

Voltors: víctimes o culpables?

Treball presentat a l'assignatura de Deontologia i Veterinària Legal (21223

Nota sobre las mineralizaciones de fluorita del Tagamanent (Barcelona)

En la zona occidental del Macizo del Montseny. parte septentrional de lasubunidad Prelitoral de las Cadenas Costeras Catalanas, se observan unas mineralizaciones de fluorita-galena y baritina que ocupan estructuras filonianas. Se describen las características de dichas mineralizaciones dando especial énfasis al filón principal y a su encajante

Prospección geoquímica de fluor en las aguas superficiales del macizo del Montseny - Guilleries (Barcelona y Girona)

En el Macizo Montseny-Guilleries se conocen antiguas explotaciones de fluorita y fluorita-baritina (Osor, Tagamanent, Espinel ves, Sant Marcal, etc). Es por ello que se ha utilizado el método de prospección geoquímica de flúor en aguas superficiales para detectar posibles zonas de interés hasta ahora desconocidas Del resultado de esta prospección se deduce que el metodo es apli-cable con un elevado porcentaje de garantia en zonas que rednan condiciones similares a las del Montseny-Guilleries, ya que han quedado reflejadas la mayoria de mineralizaciones conocidas, permitiendo además detectar diversas anomalias hasta ahora desconocidas, asi como agrupaciones de valores anómalos formando bandas de orientación ESE-WNW

Metal Mobilization and zinc-rich circumneutral mine drainage from the abandoned mining area of Osor (Girona, NE Spain)

Contaminated soil and mine wastes in Spain's abandoned Osor mining area contain Cd, Co, Pb, Zn, As, Ba, and Sb at levels that exceed Catalonia's regulatory limits for soils of industrial use. Mine water from the Coral adit, which is the main dewatering system in the Osor area, has circumneutral pH from carbonate and silicate dissolution, and high concentrations of Fe, Mn, Ni, Pb, and Zn. Geochemical modeling showed that smithsonite and hydrozincite were possible solid phases for Zn. The Coral adit is the main source of contaminants to Osor Creek, especially Zn and SO 4 −2

Contaminación de suelos y aguas subterraneas por vertidos industriales

In the industrialised countries, soil and groundwater contamination caused by uncontrolled spills of industrial wastes is one of the most critical environmental problem, because its removal is expensive and difficult to carry out, and the effects persist during many years. In Spain this problem is especially notorious due to an inadequate management policy derived from the absence of coordination between the different involved sectors. The treatment installations are inot enough, so it has produced spillings in streams and soils or its storage in uncontrolled landfillings.The experiences and guidelines of the Environmental Protection Agency from United States have served to the industrialised countries to evaluate this kind of contamination. This methodology is based on its identification and delimitation in soil and groundwater. After the design of a monitoring and control program it can be established the correcting measures. For this reason it is important to know the transfer processes of pollutants between the saturated and not saturated medium, for this reason it is essential the use of geochemical and geophysical methods and their combination with hydrogeological methods.In Spain, this kind of studies is only carried out recently. A case history is the contamination of the alluvial aquifer of the Besos river (Barcelona) by Cr-VI and other heavy metals and organic microcontaminants

Groundwater contamination by uranium and mercury at the Ridaura aquifer (Girona, NE Spain)

Elevated concentrations of uranium and mercury have been detected in drinking water from public supply and agricultural wells in alluvial and granitic aquifers of the Ridaura basin located at Catalan Coastal Ranges (CCR). The samples showed high concentrations of U above the U.S. standards and the World Health Organization regulations which set a maximum value of 30 µg/L. Further, high mercury concentrations above the European Drinking Water Standards (1 µg/L) were found. Spatial distribution of U in groundwater and geochemical evolution of groundwater suggest that U levels appear to be highest in granitic areas where groundwater has long residence times and a significant salinity. The presence of high U concentrations in alluvial groundwater samples could be associated with hydraulic connection through fractures between the alluvial system and deep granite system. According to this model, oxidizing groundwater moving through fractures in the leucocratic/biotitic granite containing anomalous U contents are the most likely to acquire high levels of U. The distribution of Hg showed concentrations above 1 µg/L in 10 alluvial samples, mainly located near the limit of alluvial aquifer with igneous rocks, which suggests a possible migration of Hg from granitic materials. Also, some samples showed Hg concentrations comprised between 0.9 and 1.5 µg/L, from wells located in agricultural areas.Peer ReviewedPostprint (published version

Geochemical exploration in the Montseny Mountains (NE Spain)

A five year program of systematic multi-element geochemical exploration of the Catalonian Coastal Ranges has been initiated by the Geological Survey of Autonomic Government of Catalonia (Generalitat de Catalunya) and the Department of Geological and Geophysical Exploration (University of Barcelona). This paper reports the first stage results of this regional survey, covering an area of 530 km2 in the Montseny Mountains, NE of Barcelona (Spain). Stream sediments for metals and stream waters for fluoride were chosen because of the regional characteristics. Four target areas for future tactic survey were recognized after the prospect. The most important is a 40 km* zone in the Canoves-Vilamajor area, with high base metal values accompanied by Cd, Ni, Co, As and Sb anomalie

El Cardenal Alejandro Farnese en la corte pontificia de Rodrigo Borja y Lorenzo de Mediéis

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