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García Lorenzo, Mari Luz ; Herrero, María José ; Martínez Sánchez, María José ; Molina Ruiz, José ; Hernández Nicolás, Carmen María ; Bech, Jaume ; Pérez Sirvent, Carmen | EGU General Assembly | 2017In freshly deposited sulphidic mine tailings, the pH is neutral or slightly alkaline. Due to pyrite oxidation, the pH decreases to values lower than 3 at which acidophilic iron- and sulphur-oxidizing prokaryotes prevail and accelerate the oxidat[...]texto impreso
García Lorenzo, Mari Luz ; Marimón, Jorge ; Navarro Hervás, M. C. ; Pérez Sirvent, Carmen ; Martínez Sánchez, María José ; Molina Ruiz, José | Springer | 2016-09Weathering of sulphide minerals produces a great variety of efflorescences of soluble sulphate salts. These minerals play an important role for environmental pollution, since they can be either a sink or a source for acidity and trace elements. [...]texto impreso
García Lorenzo, Mari Luz ; Pérez Sirvent, Carmen ; Molina Ruiz, José ; Martínez Sánchez, María José | Elsevier | 2014This work presents a methodology to assess the environmental potential risk of soils when submitted to different conditions. The potentially toxic element (PTE) behaviour was evaluated by single chemical extractions in order to simulate four con[...]texto impreso
Martínez Sánchez, María José ; Pérez Sirvent, Carmen ; Molina Ruiz, José ; Tudela Serrano, María Luz ; García Lorenzo, Mari Luz | Elsevier | 2011The main aim of this work is to progress in the study of desertification processes in Mediterranean regions in the framework of DESERTNET project by means of the execution of pilot studies and development of evaluation models. This paper shows t[...]texto impreso
Martínez Sánchez, María José ; Pérez Sirvent, Carmen ; García Lorenzo, Mari Luz ; Martínez López, Salvadora ; Pérez Espinosa, Víctor ; González Ciudad, Eva ; Martínez Martínez, Lucía Belén ; Hernández, Carmen ; Molina Ruiz, José | EGU General Assembly | 2017The Sierra Minera of Cartagena-La Union is located in the Region of Murcia, Southeast of Spain. This zone presents high levels of heavy metals due to natural, geogenic reasons. In addition, the prolonged mining activity, and subsequent abandonme[...]texto impreso
García Lorenzo, Mari Luz ; Pérez-Sirvent, Carmen ; Martínez Sánchez, María José ; Molina Ruiz, José ; Martínez, Salvadora ; Arroyo, Xabier ; Martínez Martínez, Lucía Belén ; Bech, Jaume | Geological Society | 2018A total of 120 sediments from 12 cores of Portman Bay (SE Spain) were studied to assess the degree of contamination and ecological risk related to potentially toxic elements (PTEs) by combining a geochemical and mineralogical characterization wi[...]texto impreso
García Lorenzo, Mari Luz ; Pérez Sirvent, Carmen ; Martínez Sánchez, María José ; Molina Ruiz, José | Elsevier | 2012The distribution of trace elements throughout mining areas is an important issue because abandoned tailings can be a major source of environmental pollution. The aim of this study was to identify the trace element content, hydric dispersion ways[...]texto impreso
Navarro Hervás, Cortés ; Pérez Sirvent, Carmen ; Martínez Sánchez, María José ; García Lorenzo, Mari Luz ; Molina Ruiz, José | Elsevier | 2012Chemical and mineralogical characterization of waste materials present in an abandoned Pb, Zn–Ag mining site (SE, Spain) was carried out. In unaltered rocks, the mineralogy is characterized by plagioclase, pyroxene, magnetite, ilmenite, amphibol[...]
