SEPARATION OF PARTICLES INCLUDED IN NATURAL ICE BY ADAPTED SUBLIMATION
2024; CEILAP-UNIDEF-CONICET-CITEDEF; Volume: 35; Issue: 2 Linguagem: Inglês
10.31527/analesafa.2024.35.2.25
ISSN1850-1168
Autores Tópico(s)Cryospheric studies and observations
ResumoNon-soluble particles trapped in natural ice (glaciers, permafrost, hail) provide valuable information about the environments in which they were formed. The extraction of the particles is usually carried out through the melting of ice and subsequent filtering of the water obtained. Here, a novel methodology for extracting ice particles from the solid phase is presented, which is efficient, low cost in infrastructure, and minimizes possible sources of contamination. This methodology of adapted sublimation particle separation allows to determine the spatial distribution and concentration of non-soluble particles, as well as their sizes (without the limitations of filtration), their shape, structure and elementalchemical composition. The method is in this case applied to hail collected during the program COSECHEROS, which has a medium-sized particle of 40μm at its center.
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