10 documents found, page 1 of 1

Análise sobre empregabilidade e associativismo nas áreas das Geociências em Por...

A empregabilidade e associativismo científico-profissional em Geociências em Portugal são raramente alvo de análise integrada. Neste estudo são analisados os resultados de um inquérito “online” promovido pelo projeto de comunicação de ciência “Sm-Ar-Te-F-O-Ne - Todos vêm das rochas”, em que os inquiridos responderam de forma voluntária, a questões associadas a empregabilidade, ligação entre academia e indústria...

Pb-Nd-Sr Isotope Geochemistry of Metapelites from the Iberian Pyrite Belt and I...

The Iberian Pyrite Belt is a world-class metallogenic district developed at the Devonian-Carboniferous boundary in the Iberian Variscides that currently has seven active mines: Neves Corvo (Cu-Zn-Sn) and Aljustrel (Cu-Zn) in Portugal, and Riotinto (Cu), Las Cruces (Cu), Aguas Teñidas (Cu-Zn-Pb), Sotiel-Coronada (Cu-Zn-Pb), and La Magdalena (Cu-Zn-Pb) in Spain. The Iberian Pyrite Belt massive sulfide ores are us...

Multi-elemental and isotope geochemistry of metapelites from the Volcano-Sedime...

Over the last two decades, promising steps have been made in the development of new greenfield and brownfield exploration methods for massive sulphide ore-forming systems in the Iberian Pyrite Belt (IPB). However, the effects of lateral and vertical facies variations in metasedimentary piles forming the two main lithostratigraphic units that potentially host massive sulfide deposits [the Phyllite-Quartzite Grou...

Geochemical exploration and assessment of environmental impacts in the Portugue...

ABSTRACT: This work intends to briefly report the history and application of geochemical exploration techniques in the Iberian Pyrite Belt (IPB). The use of geochemistry in IPB for exploration purposes started in 1950s. Together with geophysics, the soil geochemical exploration surveys performed over several decades were responsible for important discoveries such as Carrasco and Feitais ore-bodies. However, the...

Geochemical exploration and assessment of environmental impacts in the Portugue...

ABSTRACT: This work intends to briefly report the history and application of geochemical exploration techniques in the Iberian Pyrite Belt (IPB). The use of geochemistry in IPB for exploration purposes started in 1950s. Together with geophysics, the soil geochemical exploration surveys performed over several decades were responsible for important discoveries such as Carrasco and Feitais ore-bodies. However, the...

Geochemical exploration and assessment of environmental impacts in the Portugue...

ABSTRACT: This work intends to briefly report the history and application of geochemical exploration techniques in the Iberian Pyrite Belt (IPB). The use of geochemistry in IPB for exploration purposes started in 1950’s. Together with geophysics, the soil geochemical exploration surveys performed over several decades were responsible for important discoveries such as Carrasco and Feitais ore-bodies. However, th...

Geochemistry of soils and stream sediments in the NE border of the Iberian Pyri...

Geochemistry of soils and stream sediments in the NE border of the Iberian Pyri...

Cu- and Za-soil anomalies in the NE border of the South Portuguese Zone (Iberia...

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 from background using the concentration–area fractal model. Distribution patterns of Cu and Zn concentrations in soil are primarily influenced by bedrock. The regional threshold values of Cu- and Zn-soil contents over metasedimen...

Geochemistry of stream sediments southwards of the SW Variscan suture in Portug...

Stream sediment samples were collected in the Trindade–Chança region at 1034 sites for mineral exploration purposes during 1996–97. Concentrations of Cu, Zn, Pb, Co, Cr and Ni are high enough in most sample sites to allow data assessment by multi-element anomaly definition and threshold computation using the area concentration multifractal model technique. The regional threshold values are 20, 45, 30 and 15 ppm...