Portal de Cartagena
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The dynamics of the mineral phases, as well as their associated metals and metalloids, in the mining soil and residues of the Sierra Minera de Cartagena-La Union and the interaction of these with the environment, has been the subject of the doctoral thesis, with international mention, presented by the student of the PhD program "Environment and Sustainable Mining" of the UPCT, José Matías Peñas Castejón.
The thesis was carried out under the direction of UPCT professors Gregorio García and José Ignacio Manteca and the Polish researcher Miroslaw Kobierski.
This doctoral thesis, made by means of the compilation of articles in indexed scientific journals, consists of 5 articles selected from those published by the doctorate in the 2007-2017 period in first level journals.
In chronological order, the titles and thematic, translated into Spanish, of these articles included in the thesis report are the following:
"Leaching and transport of Zn through soil profiles in a rambla of a mining area in the SE of Spain"
The behavior of zinc in some soil and sediment profiles located in the rambla channel of the Sierra Minera de Cartagena-La Unión has been analyzed.
It was found that a change in environmental conditions (acid, reducing or oxidizing) could remove important amounts of Zn.
"Zn mobility and geochemistry in surface soils of sulfur mining of the SE of Spain"
It deals with the evaluation of the actual environmental and health risks of Zn in relation to geochemistry and its mobility in surface soils of the Portman mining area.
To emphasize the importance of the mechanisms of capillarity and the entrainment of the mineral phases and trace elements by electrokinetic and colloidal processes, which are at the base of their subsequent dispersion through erosion, and thus, in the affection of their surroundings.
"Cyclic weathering of saline efflorescence: an invisible threat to the recovery of the underground mining environment with a view to its tourist exploitation"
It deals with the characterization of the supergenic mineral phases of saline efflorescence present in an underground metal sulphide mine, restored for tourism purposes.
The environmental hazards, but also for the structural stability caused by the deterioration of the mechanical properties of the rock, are related to the presence of these metal salts.
"The pedogenesis of mining waste affects macroporosity, hydrological properties and the flow of pollutants"
Soil formation processes, pedogenesis, occurring in metal mining waste of different ages have been characterized in order to evaluate the physical and hydrological changes that occur as a consequence of them, as well as their consequences on the risk of environmental pollution.
"Impact of deposition levels of atmospheric dust and trace elements on the populations of an old mining area under semi-arid climate (SE of Spain)"
It addresses the deposition of particulate matter from metallic mining areas, as well as its impact on surrounding populations, an issue relevant to the environment and health.
This study confirmed some spatial variability of atmospheric entrained dust and trace elements.
Source: UPCT
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