Establishing robust environmental proxies at newly investigated terrestrial sedimentary archives is a challenge, because straightforward climate reconstructions can be hampered by the complex relationship between parameters and sediment composition, proxy preservation or (in)sufficient sample material. We present minimally invasive hyperspectral bidirectional reflectance analysis on discrete sa...

in this article, we have investigated the role of dimethylamine (dma), tributylamine (tba), triethanoleamine (tea), trishydroxymethylamine (trizma), and hexamethyleneterraamine (hmta), in the formation of zeolitic compounds. the experiments were carried out in acidic and basic media using si/al< 10 and si/a1>10. the structure of the resulting synthetic zeolites were similar to natro davyne, amm...

Abstract Analcime is nowadays an important component in dental porcelain systems, heterogeneous catalysis, the nanoelectronic field, selective adsorption and stomatology (dental filling prosthesis). synthesis from impure, silica-rich kaolinite rock coming Romana (Sassari, Italy) here presented. A protocol proposed that aims to make improvement of conditions compared past. The hydrothermal treat...