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U znanstvenom \u010dasopisu Clays and Clay Minerals objavljeni su rezultati istra\u017eivanja internacionalne grupe znanstvenika iz SAD-a, Austrije, Hrvatske i Bosne i Hercegovine. U radu je obja\u0161njen na\u010din i obrasci mobilnosti elemenata rijetkih zemalja (REE) u dijagenetski izmijenjenim miocenskim tufovima iz jugozapadnog dijela Panonskog bazena i susjednih Dinarida. Istra\u017eivanje je uklju\u010dilo detaljnu mineralo\u0161ku, geokemijsku i plinsku adsorpcijsku karakterizaciju izmijenjenog tufa, fokusiraju\u0107i se pritom na komparativne analize kemije REE dobivene in situ laserskom ablacijom induktivno spregnutom plazma spektrometrijom mase (LA-ICP-MS) krhotina stakla i prostorno povezanih autigenetskih glinenih minerala (ilit-smektit; I-S). Rezultati su pokazali da je I-S nastao tijekom dijageneze vulkanskog stakla, naslje\u0111uju\u0107i magmatske REE signature, ali tako\u0111er i frakcioniranjem REE na temelju vi\u0161e reduciranih fizikalno-kemijskih uvjeta. Ovi nalazi doprinose boljem razumijevanju pona\u0161anja REE u niskotemperaturnim dijagenetskim okoli\u0161ima, nagla\u0161avaju\u0107i pritom zna\u010daj minerala glina u zadr\u017eavanju i frakcioniranju ovih elemenata koji u kona\u010dnici mogu dovesti do formiranja ekonomski isplativih le\u017ei\u0161ta gline.\u00a0<\/p>\n