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Geodynamic evolution of the SW Europe Variscides
[1] The early evolution of SW Europe Variscides started by opening of the Rheic ocean at ∼500 Ma, splitting Avalonia from Armorica/Iberia. Subduction on the SE side of Rheic generated the PaleotethysExpand
Mapping groundwater contamination around a landfill facility using the VLF-EM method — A case study
An electromagnetic survey to detect leachate flow and to map its spatial distribution using the VLF-EM method was carried out around a landfill that is operating since 1998. The survey comprisedExpand
The Beja Layered Gabbroic Sequence (Ossa-Morena Zone, Southern Portugal): geochronology and geodynamic implications
The Beja Igneous Complex (BIC) is a major geological feature in SW Iberian Variscides, consisting of three main units developed during different stages of the oblique collision between the OssaExpand
The metallogenic evolution of the Ossa-Morena Zone
The Ossa-Morena Zone contains abundant ore deposits and showings for the most part formed during the Cadomian and the Variscan orogenic cycles, and the intermediate rifting and stable platformExpand
Geochemical anomaly separation by multifractal modelling
Abstract Geochemical anomaly separation using the concentration–area method as applied to two different geological settings in Portugal is investigated. Soil geochemistry data sets were used in bothExpand
The Late-Variscan fault network in central–northern Portugal (NW Iberia): a re-evaluation
Abstract The fault network in central–northern Portugal, especially the fault system with mean strike N25°, has been used to help deduce the late Palaeozoic dynamics of Western Europe. On the otherExpand
Roman and modern slag at S. Domingos mine (IPB, Portugal): compositional features and implications for their long-term stability and potential reuse
S. Domingos ores have been exploited for Cu and S from antiquity to 1966. Slag is composed of Fe-, Ca-, Zn- and Pb-rich silicate glass, fayalite, hedenbergite, Fe-spinel, and blebs of Fe-, Cu-, Zn-Expand
Granite fracturing and incipient pollution beneath a recent landfill facility as detected by geoelectrical surveys
Abstract A resistivity survey using Wenner array was carried out in June 2000 in a granite region of Northern Portugal, where an active landfill is operating since 1998, to detect the possible spreadExpand
Variation of magnetic properties in sedimentary rocks hosting the Foum Zguid dyke (southern Morocco): Combined effects of re-crystallization and Fe-metasomatism
The effects of dyke intrusion on the magnetic properties of host sedimentary rocks are still poorly understood. Therefore, we have evaluated bulk magnetic parameters of standard palaeomagneticExpand
Cu- and Zn-Soil Anomalies in the NE Border of the South Portuguese Zone (Iberian Variscides, Portugal) Identified by Multifractal and Geostatistical Analyses
Extensive Cu- and Zn-soil geochemical data in the Albernoa/Entradas–S. Domingos region (NE border of the Iberian Pyrite Belt, South Portuguese Zone) were examined to separate anomalies fromExpand