Geoenvironmental characterization of unstable abandoned mine tailings combining geophysical and geochemical methods (Cartagena-La Union district, Spain)

Crespo, Tomás Martı́n; Gómez-Ortíz, David; Martín-Velázquez, Silvia; Martínez‐Pagán, Pedro; Ignacio, Cristina de; Lillo, Javier; Faz, Ángel

doi:10.1016/j.enggeo.2017.11.018

Cited by 47 publications

(52 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Also, the boreholes core samples confirm that the most contaminating elements lie at the top and the presence of these elements decreases in deeper layers. These findings match those of previous studies such as that found by Martín-Crespo et al (2018b) in their study of heavy metals in mine tailings. For F1, profiles 1-2, the largest penetrated to a depth of ≈45 metres, while profiles 3-4 only penetrated to ≈25 metres.…”

Section: Electrical Resistivity Tomographysupporting

confidence: 92%

“…In this study the Wenner-Schlumberger array was used because it provides good vertical resolution, depth penetration, and high signal-to-noise ratio. Moreover, many authors in similar studies have employed this array achieving excellent results (Acosta et al, 2014;Evangelista et al, 2017b;Martín-Crespo et al, 2018a).…”

Section: Geophysics Technique: Electrical Resistivity Tomography (Ert)mentioning

confidence: 99%

See 1 more Smart Citation

Characterising an ancient storage area of phosphogypsum by combining geophysical, geochemical and statistical techniques

Vásconez-Maza¹,

David²

View full text Add to dashboard Cite

Therefore, it was performed principal component analysis and partial least squares discriminant analysis to classify and discriminating both populations. Consequently, the research has successfully achieved the objectives. Results showed that combining electrical resistivity tomography with chemical analysis is suitable and reliable to characterise waste deposits. Additionally, incorporating statistic tools have demonstrated satisfactory results and support the obtained results mathematically. Finally, this thesis is structured in chapters as follows: chapter one presents the objectives, chapter two analyse state of the art. Later, chapters three, four, and five holds the scientific publications that compose this thesis. Finally, chapter six deals with the conclusions of this doctoral thesis.

show abstract

Section: Electrical Resistivity Tomographysupporting

confidence: 92%

Section: Geophysics Technique: Electrical Resistivity Tomography (Ert)mentioning

confidence: 99%

Characterising an ancient storage area of phosphogypsum by combining geophysical, geochemical and statistical techniques

Vásconez-Maza¹,

David²

View full text Add to dashboard Cite

show abstract

“…To appropriately implement the application of phytostabilization techniques, it is required a precise and representative physicochemical characterization of the tailing ponds, for which it would be needed to collect representative samples from the tailing ponds not only from the surface but also from inside by means of core sampling acquisition tools or mechanical drilling rigs [6]. However, to accomplish this adequate physicochemical characterization through conventional sampling techniques such as boreholes, auger drilling, superficial sampling grids, etc., it is required an high budget and work time-consuming [11,12]. Therefore, it would be interesting to minimize those drawbacks with the assistance of geophysical techniques, especially the electrical resistivity tomography (ERT) method as over the last years, there have been revolutionary improvement to the resistivity method where two-dimensional (2-D) surveys are now routinely conducted in many study fields [13].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the studies carried out on tailings ponds using the electrical resistivity tomography method have been focused on identifying the tailings internal structure, defining the morphology of the tailings-bedrock contact, highlighting the occurrence of faults or cracks that could put at risk the whole pond stability and/or pinpointing preferential pathways for heavy metal transport or acid mine drainage [6,7,11,12,29,30]. However, studies on tailings ponds mainly focused on employing ERT method to establish relationships among electrical resistivity data and physicochemical variables such as moisture, heavy-metals content, pH values, particle size distribution, etc., are really scarce [6].…”

Section: Introductionmentioning

confidence: 99%

Electrical Resistivity Tomography as a Support Tool to Estimate Physicochemical Properties of Mining Tailings Pond

Gabarrón¹,

Martínez‐Pagán²,

Martínez-Segura³

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

Legacy mining industry has left a large number of tailings ponds exposed to water and wind erosion that causes serious environmental and health problems. Prior to rehabilitation actions a deep sampling of the materials infilling the pond used to be necessary. Thus, the primary objective of this study is to demonstrate the usefulness of the Electrical Resistivity Tomography (ERT) method as a non-invasive tool to determine the physicochemical composition of mine tailings ponds, enabling more efficient and low-cost surveys. To achieve this objective, three ERT profiles and three boreholes in each profile were carried out, from each borehole three waste samples from differents depths were collected and a geochemical characterization of the samples was carried. In order to estimate the composition of the infilling wastes in tailing ponds from electrical resistivity measures, several regression models were calculated for different physicochemical properties and metal concentrations. As a result, a high resistivity area was depicted in profiles G2 and G3 while a non-resistive area (profile G1) was also found. Relationships among low resistivity values and high salinity, clay content and high metal concentrations and mobility were established. Specifically, calibrated models were obtained for electrical conductivity, particles sizes of 0.02-50 µm and 50-2000 µm, total Zn and Cd concentration, and bioavailable Ni, Cd and Fe. Therefore, the ERT technique could be considered as a useful tool for mine tailings ponds characterization, and it can be used to estmate some physicochemical properties and metal concentrations of this mine waste.

show abstract

“…The physical (pH, density) and the chemical properties of soils are a forcing factor for the growth and pollutant metabolism of plants during phytoremediation, particularly heavy metal content in the sediments at the (superficial) upper levels [5,6]. In this context, heavy metal concentration is commonly determined by a chemical analysis involving a high cost and a long period of analysis [7][8][9]; however, a low-cost and fast-application method is necessary for effective sediment characterization prior to remediation.…”

Section: Introductionmentioning

confidence: 99%

A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

et al. 2020

View full text Add to dashboard Cite

This paper intends to validate the application of magnetic techniques, particularly magnetic susceptibility, as sampling tools on a copper tailings terrace, by correlating them analytically. Magnetic susceptibility was measured in both the field and laboratory. Data obtained allowed for designing spatial magnetic susceptibility distribution maps, showing the horizontal variation of the tailings. In addition, boxplots were used to show the variation of magnetic susceptibility and the concentration of the elements analyzed at different depths of the copper tailings terrace. The degree of correlation between magnetic and chemical variables was defined with coefficient R2. The horizontal and vertical variations of magnetic susceptibility, the concentration of elements, and the significant correlations between them show a relationship between magnetic susceptibility and the chemical processes occurring in the tailing management facility, such as pyrite oxidation. Thus, the correlation functions obtained could be used as semiquantitative tools to characterize tailings or other mining residues.

show abstract

Geoenvironmental characterization of unstable abandoned mine tailings combining geophysical and geochemical methods (Cartagena-La Union district, Spain)

Cited by 47 publications

References 25 publications

Characterising an ancient storage area of phosphogypsum by combining geophysical, geochemical and statistical techniques

Characterising an ancient storage area of phosphogypsum by combining geophysical, geochemical and statistical techniques

Electrical Resistivity Tomography as a Support Tool to Estimate Physicochemical Properties of Mining Tailings Pond

A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings

Contact Info

Product

Resources

About