1,721,158 research outputs found
A CONTRIBUTION TO KNOWLEDGE OF SOME STONE MINES IN ETHIOPIA AND SARDINIA
No full textUna breve illustrazione, in italiano e inglese, rivolta allo sviluppo delle conoscenze su alcuni giacimenti di lapidei presenti in aree vergini o poco note. I dati esposti, certamente non sufficienti per una trattazione esaustiva, sono da considerarsi puramente indicativi sulle potenzialità offerte da tali giacimenti
Distribuzione dei metalli pesanti nel reticolo idrografico della Sardegna: risultati e prospettive d'indagine
No full text
Multidisciplinary approach for the determination of unusual pathologies causes: the case of the Pigmented Basal Cell Carcinoma in a girl sixteen-year-old
No full textThe Fluorine in Surface Waters: Origin, and Weight on Human Health
No full textThe present geochemistry of fluorine in a given area is thus a result of the local geological history, whose structural fabric evolution may be strongly affected by rift structures. Fluorspar deposits must be considered only a possible end effect of the hydrothermal systems that always form along the rift faults and fractures and involve huge volumes of F-rich solutions directly or indirectly responsible for the origin and geochemical balance of fluorine in the surface waters.
On the other hand, this study enables to suggest the control of areas where the anomalies in fluoride can be expected to be harmful to health. Indeed, links between high grade fluorine and some diseases are well known. The fluorosis, which is particularly widespread in some developing countries grows where excessive F (as fluoride) occurs in the waters used for civilian purposes
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