Geochemical anomalies for the determination of surface stream sediments pollution: case of Sierra de Cartagena-La Unión mining district, Spain

Fernández-Naranjo, Francisco Javier; González, Julio César Arranz; Rodríguez-Gómez, Virginia; Rodríguez-Pacheco, Roberto; Vadillo, Lucas

doi:10.1007/s10661-020-8199-0

Cited by 8 publications

(8 citation statements)

References 17 publications

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“…In turn, when understanding the relationship between Zn and Cd, it must be considered that they are chemically similar elements, which often allows substitution between them in minerals [62]. In fact, previous studies have already observed a significant correlation between both elements within the sulphide mining area studied [63,64]. The similar electronic configuration, as well as their common dissolution from secondary minerals, explains the similar geochemical behaviour of these elements in mining environments [65].…”

Section: Statistical Relationships Between the Different Parameters C...mentioning

confidence: 98%

Mineralogy, Geochemistry and Environmental Hazards of Different Types of Mining Waste from a Former Mediterranean Metal Mining Area

Rodríguez-Pacheco

García

Caparrós-Ríos

et al. 2023

Land

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Mine waste constitutes one of the biggest environmental and management problems, both due to its quantity and its danger when they are rich in toxic elements. There is a wide variety of waste from the oxidation of ores in metal mining areas, both metal sulphide and other minerals. These residues may be enriched in potentially toxic elements that can spread and contaminate ecosystems, farmland and villages. This study has focused on the characterization and evaluation of residues derived from metal-bearing mining waste in abandoned mining areas. Mineralogy and geochemical characteristics were determined by XRD, WDXRF and TG-MS techniques. In addition, DIN 38414-S4 leaching tests were carried out to assess the risk and mobility of potentially toxic elements. Silicates and oxides were found as the main mineral groups, followed by sulphates. These tailings were particularly enriched in Zn, Pb, As, Sb and Cd, while their leachates had high or extreme metal content. Consequently, these mining wastes are considered toxic and hazardous, even for landfills. Sulphides, as the primary source, and sulphates from their oxidation, were the main sources of these pollutants. Sulphates, As, Zn, Cd and Cu determined the specific environmental impact of the different tailing types, which were grouped into different clusters according to their mineralogy and geochemistry. These results provided a better understanding of the environmental hazards associated with the different types of metal mining waste in the area studied.

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Section: Statistical Relationships Between the Different Parameters C...mentioning

confidence: 98%

Mineralogy, Geochemistry and Environmental Hazards of Different Types of Mining Waste from a Former Mediterranean Metal Mining Area

Rodríguez-Pacheco

García

Caparrós-Ríos

et al. 2023

Land

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“…These accumulations resulting from mining (present in tailings ponds and dumps) have a much higher water erosion rate than natural soils (García, 2004; Yadav et al, 2022), making erosion effects even more severe due to metal leaching and mobility from open mining locations. This, together with the ongoing weathering processes, has generated supergene products, including Fe and Al oxy‐hydroxysulphates, carbonates, and hydrated sulphates (Fernández‐Naranjo et al, 2020; Martín‐Crespo et al, 2020). Al sulphate minerals, such as alunite (KAl 3 (SO 4 ) 2 (OH) 6 ) or jurbanite (AlSO 4 (OH)·5H 2 O), are products of the aluminosilicate mineral destructions.…”

Section: Introductionmentioning

confidence: 99%

Monitoring sedimentary areas from mine waste products with Sentinel‐2 satellite images: A case study in theSEof Spain

Pereira

Alcalde-Aparicio

Ferrer-Juliá

et al. 2023

European J Soil Science

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Torrential rainfall regimes, among others, are the origin of accelerated soil erosion. The Spanish southeastern Mediterranean region is characterised by an arid climate regime affected by extreme erosion episodes with an important loss of sediments. Soil erosion effects are even more noticeable in areas where soil has been anthropically degraded, as in the mining district of Sierra Minera de Cartagena. The present research focuses on monitoring and mapping the changes in the sediment distribution of iron oxides and hydroxyl (OH−) bearing minerals caused by a cold drop known in Spanish as 'DANA' in September 2019 on the Rambla del Beal. This short rambla is fed by sediments from its drainage basin and by mining residues, irrigating a wide agricultural area. When discharges overflow the rambla channel, residues spread over its floodplain and reach the ecological protected coastal lagoon Mar Menor. The objective of the study was mapping the mineral distribution of the mining materials eroded from the source areas and sedimented in Rambla del Beal during a DANA. The study was carried out using a pre‐ and a post‐DANA image from the Sentinel‐2 satellite. After masking vegetation, urban areas and water bodies, different band ratios (B4/B3, B11/B12, B8A/B6) and a Spectral Angle Mapper (SAM) classification were applied. Sediment deposits were identified in wider areas after the DANA. Iron oxides increased their extension by 11.08% in the central area (B3/B4 with R2 of 0.84) and hydroxyl‐bearing minerals increased by 8.95% in the Rambla del Beal's headwaters (B11/B12 with R2 of 0.71). The SAM classification (with a 0.1 rad threshold and an overall accuracy of 87.33%) allowed the differentiation and classification of two ferric iron oxides (haematite and goethite) and one iron hydrous sulphate mineral (jarosite). Additionally, band ratio images were spatially overlaid with the soil land uses map layer of the cadastre in order to plot the land uses most affected by the transported sediments during the DANA. These results highlighted agricultural land as the areas (land uses) most affected by iron oxides deposition, as oxidation processes occur more rapidly in these areas. However, grassland and scrubland were the areas with the highest content of hydroxyl‐bearing minerals, as water is accumulated in these places, which favours hydrolysis reactions. Highlights Torrential events can relocate large volumes of contaminated sediments from former mining areas. Sentinel‐2 allows monitoring mine waste iron‐sulphate changes caused by weathering alteration. Spatial mineralogical pattern in sediments is controlled by geomorphology and flood dynamics. The proposed digital image analysis allows mapping short‐term evolution of mine waste sediments.

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“…Cuando se trata de realizar valoraciones sobre la contaminación potencial asociada a los EPT contenidos en los RMA, algunas aproximaciones preliminares y eficientes para hacerlo incluyen: la evaluación del drenaje ácido de minas (DAM) [66], de los índices de contaminación (IC) [47], [110]- [113] y de las pruebas de lixiviación [81], [82]. A continuación, se describe cada uno de estos ejes temáticos.…”

Section: Evaluación De La Peligrosidad De Los Elementos Potencialment...unclassified

“…Por ello, a diferencia del MEC, el IC no puede ser inferior a 1. En la actualidad este IC se ha utilizado sistemáticamente en los inventarios recientes realizados por el Instituto Geológico y Minero de España (IGME), además, de aplicarse en diversos trabajos publicados sobre caracterización y evaluación de RM (ver Tabla 3) [47], [81], [93], [110], [113], [134], [142], [143]. Es importante comentar que, en la metodología empleada por el IGME y en los trabajos citados, también se usan otros índices que valoran el potencial de solubilización de los EPT, ampliando así la evaluación de la capacidad contaminante de los RM, los cuales están sometidos a procesos de erosión hídrica y eólica o de lixiviación, siendo las aguas superficiales y subterráneas, los sedimentos y el polvo los agentes principales de dispersión hacia los posibles receptores.…”

Section: íNdices De Contaminación (Ic)unclassified

“…Por ello, se decidió revisar sistemáticamente valores de contenidos de elementos en residuos mineros y se calculó el ICG hasta completar la Tabla del Anexo 1. En esta tabla se aportan datos obtenidos en diferentes trabajos publicados [47], [81], [179], [273], así como datos extraídos de la base de datos geoquímicos de SERNAGEOMIN [201]. En total se han calculado 110 valores de ICG.…”

Section: Median Of Backgound and Baseline Soil Levelsunclassified

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Evaluación de la peligrosidad de los elementos potencialmente tóxicos presentes en residuos mineros abandonados

Martínez¹

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quienes me brindaron todo el apoyo técnico-administrativo necesario para concluir mis estudios de doctorado.A mis directores de tesis: Julio César Arranz, quien me apoyó siempre que acudí a él y de quien tengo experiencias invaluables en campo y gabinete. María Jesús García que siempre estuvo al pendiente de mí desarrollo académico, brindándome apoyo y consejo cuando acudí a ella. De ambos, adquirí conocimiento valioso y, sin ellos, no hubiese podido concluir esta investigación doctoral.

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Geochemical anomalies for the determination of surface stream sediments pollution: case of Sierra de Cartagena-La Unión mining district, Spain

Cited by 8 publications

References 17 publications

Mineralogy, Geochemistry and Environmental Hazards of Different Types of Mining Waste from a Former Mediterranean Metal Mining Area

Mineralogy, Geochemistry and Environmental Hazards of Different Types of Mining Waste from a Former Mediterranean Metal Mining Area

Monitoring sedimentary areas from mine waste products with Sentinel‐2 satellite images: A case study in theSEof Spain

Evaluación de la peligrosidad de los elementos potencialmente tóxicos presentes en residuos mineros abandonados

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