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Ver términos de la licenciaJiménez-Franco, Abigail, et al. (2024). Manifestaciones anómalas de mercurio atmosférico (GEM) y su relación con la actividad geotérmica de Pathé, estado de Hidalgo (México). Revista Internacional de Contaminación Ambiental; Vol. 40, 2024; 373-385. Recuperado de https://repositorio.unam.mx/contenidos/4161337
Autor(es)
Jiménez-Franco, Abigail; Canet, Carles; Higueras, Pablo; Pi-Puig, Teresa
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Manifestaciones anómalas de mercurio atmosférico (GEM) y su relación con la actividad geotérmica de Pathé, estado de Hidalgo (México)
Fecha
2024-11-21
Resumen
The Pathé geothermal zone (state of Hidalgo, Mexico) shows anomalous values of atmospheric mercury. The detected anomalies (Hg in air) coincide spatially with zones of advanced argillic alteration (former kaolin mines), which constitute natural sources of emissions of mercury, whose geological enrichment is due to water-rock interaction processes. Taking into account that the advanced argillic alteration indicates past steam-heated waters, it can be deduced that Hg was primarily mobilized as a gas, and it cannot be ruled out that it is still being emitted in the same way. However, from an environmental and health perspective, the maximum values of atmospheric Hg measured in the study area (36 ng/m3) are well below the threshold considered hazardous to human health. Nevertheless, it is advisable to carry out systematic monitoring of atmospheric Hg throughout the country —for environmental purposes—, in the potential sources of natural or anthropogenic emissions of this metal. According to our results, the proposed methodology could be an effective, simple, and rapid tool for geothermal and mining exploration since, through its application, certain areas of hydrothermal alteration (Hg-enriched) can be indirectly identified.
Tema
geothermal; hydrothermal alteration; kaolinite; Hg; geochemical exploration; geotermia; alteración hidrotermal; caolinita; Hg; exploración geoquímica
Idioma
spa
ISSN
ISSN impreso: 0188-4999
