Trace element contents in galena and sphalerite from ore deposits of the Alcudia Valley mineral field (Eastern Sierra Morena, Spain)

Palero-Fernández, Fernando J.; Martin-Izard, Agustín

doi:10.1016/j.gexplo.2005.03.001

Cited by 62 publications

(17 citation statements)

References 5 publications

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“…This mining area was the major lead producer in Spain during the second half of the 19th century and the Alcudia Valley was one of the most important districts. A detailed description of this mining area has been provided elsewhere (Palero-Ferná ndez and Martín-Izard, 2005).…”

Section: Studied Areamentioning

confidence: 99%

Heavy metal distribution and chemical speciation in tailings and soils around a Pb–Zn mine in Spain

Rodríguez

Ruiz

Alonso-Azcárate

et al. 2009

Journal of Environmental Management

599

218

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Section: Studied Areamentioning

confidence: 99%

Heavy metal distribution and chemical speciation in tailings and soils around a Pb–Zn mine in Spain

Rodríguez

Ruiz

Alonso-Azcárate

et al. 2009

Journal of Environmental Management

599

218

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“…1) covers an area of some 2500 km 2 , and most of the ore deposits are Pb-Zn veins, with variable contents of Ag, Cu, Sb, Sn, W, As and Bi (Palero-Fernández and Martín-Izard, 2005). The mineral deposits are hosted by rock formations of Precambrian to Silurian age (Palero-Fernández and Martín-Izard, 2005). The Precambrian formations comprise very thick units (N8000 m) of greywacke and shale of Riphean age, and shelf facies of Vendian age.…”

Section: Geology and Ore Depositsmentioning

confidence: 99%

“…The Silurian-Devonian series comprises a sequence of quartz-arenites, rhythmically interlayered sandstones and shales, black shales, alkaline basaltic rocks, and diatremes. The ore deposits are emplaced at different levels of the stratigraphic column, from Riphean to Silurian age (Palero-Fernández and Martín-Izard, 2005). Most of the deposits were very small, but some of them such as San Quintín (500,000 t of Pb metal), El Horcajo (300,000 t of Pb metal), and Diógenes (200,000 t of Pb metal) were important producers (Palero-Fernández and Martín-Izard, 2005).…”

Section: Geology and Ore Depositsmentioning

confidence: 99%

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Low-cost geochemical surveys for environmental studies in developing countries: Testing a field portable XRF instrument under quasi-realistic conditions

Higueras

Oyarzún

Iraizoz

et al. 2012

Journal of Geochemical Exploration

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Environmental monitoring, as a prerequisite for environmental risk assessment, is crucial in developing nations from Africa, Latin America, South East Asia, or Melanesia, where conspicuously most of the World's mining activity concentrates. One of the most important environmental problems relates to the disposal of mine concentrates to river systems (e.g., Irian Jaya or Papua New Guinea). However, environmental monitoring is severely restricted in developing countries due to the chronic lack of funds. This paper explores the potential for a wider use of Field Portable X-Ray Fluorescence Spectroscopy instruments (FPXRFs) in fast, real-time, cost-effective environmental surveys for heavy metal dispersal in developing countries, where access to fully equipped geochemical labs is not usually a viable option. We simulated a scenario resembling conditions to be found in a remote region affected by mining-derived metal pollution where no proper laboratory facilities existed. We used an OXFORD X-MET 3000TX XRF analyzer under quasi-realistic conditions, relying solely on the instrument to allow geochemical characterization of a highly polluted Pb-Zn old mining district in the Alcudian Valley of central Spain. Our results for Pb, Zn, Cu, As, and Cd from 12 mine sites showed an excellent performance of the instrument, both under real-time and laboratory conditions. Furthermore, the instrument proved to be fit to endure a variety of field operational conditions and was able to deal with different types of samples, including tailings, soils, and stream sediments. Thus, taking into account the affordability of FPXRFs in relation to bench-top laboratory metal analyzers and their operational simplicity, we suggest that these portable instruments should become 'the equipment of choice' for environmental monitoring in developing countries. In this respect, FPXRFs satisfy the system-independence criterion for sustainable development, i.e., the instrument can stand alone and do its job with few or no other supporting facilities or devices. We go further on these matters providing some hints on how FPXRFs could become widely available via international cooperation, and the technical and social benefits that such equipments could bring to foreign aid recipient countries.

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“…(5), El Acebuchar (6), El Castaño (7), Chorreras (8), Mina Riquilla (9), Umbría Montoro (10), Navalmartina (11). The presence of Pb mines is found within the shaded area [1].…”

Section: Analysis Of Oxidative Stress Biomarkersmentioning

confidence: 99%

Expression of immunoregulatory genes and its relationship to lead exposure and lead‐mediated oxidative stress in wild ungulates from an abandoned mining area

Rodríguez-Estival

Lastra

Ortiz‐Santaliestra

et al. 2013

Enviro Toxic and Chemistry

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Abstract-Lead (Pb) is a highly toxic metal that can induce oxidative stress and affect the immune system by modifying the expression of immunomodulator-related genes. The aim of the present study was to investigate the association between Pb exposure and the transcriptional profiles of some cytokines, as well as the relationship between Pb exposure and changes in oxidative stress biomarkers observed in the spleen of wild ungulates exposed to mining pollution. Red deer and wild boar from the mining area studied had higher spleen, liver, and bone Pb levels than controls, indicating a chronic exposure to Pb pollution. Such exposure caused a depletion of spleen glutathione levels in both species and disrupted the activity of antioxidant enzymes, suggesting the generation of oxidative stress conditions. Deer from the mining area also showed an induced T-helper (T h )-dependent immune response toward the T h 2 pathway, whereas boar from the mining area showed a cytokine profile suggesting an inclination of the immune response toward the T h 1 pathway. These results indicate that environmental exposure to Pb may alter immune responses in wild ungulates exposed to mining pollution. However, evidence of direct relationships between Pb-mediated oxidative stress and the changes detected in immune responses were not found. Further research is needed to evaluate the immunotoxic potential of Pb pollution, also considering the prevalence of chronic infectious diseases in wildlife in environments affected by mining activities. Environ. Toxicol. Chem. 2013;32:876-883.

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Trace element contents in galena and sphalerite from ore deposits of the Alcudia Valley mineral field (Eastern Sierra Morena, Spain)

Cited by 62 publications

References 5 publications

Heavy metal distribution and chemical speciation in tailings and soils around a Pb–Zn mine in Spain

Heavy metal distribution and chemical speciation in tailings and soils around a Pb–Zn mine in Spain

Low-cost geochemical surveys for environmental studies in developing countries: Testing a field portable XRF instrument under quasi-realistic conditions

Expression of immunoregulatory genes and its relationship to lead exposure and lead‐mediated oxidative stress in wild ungulates from an abandoned mining area

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