Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Uranium as a possible criterion for the hydro-chemical alteration of betafite. / Hosseinpour Khanmiri , M.; Янсон, Светлана Юрьевна; Fomin, E.V.; Titov, A. V.; Гребенюк, Андрей Владимирович; Полеховский, Юрий Степанович; Bogdanov, R. V.
в: Physics and Chemistry of Minerals, Том 45, № 6, 01.06.2018, стр. 549-562.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Uranium as a possible criterion for the hydro-chemical alteration of betafite.
AU - Hosseinpour Khanmiri , M.
AU - Янсон, Светлана Юрьевна
AU - Fomin, E.V.
AU - Titov, A. V.
AU - Гребенюк, Андрей Владимирович
AU - Полеховский, Юрий Степанович
AU - Bogdanov, R. V.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - Hydro-chemical processes significantly alter the original composition of metamict minerals. In the work presented here, an attempt was made to reconstruct the chemical composition of betafite in the earlier stages of its geological history. The time scale is determined by the leaching rate of the isotope 238U, a process that takes its course in line with first-order kinetics, or something close to it. The leaching rate constant of this uranium isotope was assessed. Based on available data in the literature, the hydro-chemical behavior of various atoms in group A of betafite was analyzed. The chemical composition of the mineral was calculated taking into account the total charge of the cations that the betafite had at the time it was formed, or possibly the last time it was completely reformed as a result of diverse endogenic processes.
AB - Hydro-chemical processes significantly alter the original composition of metamict minerals. In the work presented here, an attempt was made to reconstruct the chemical composition of betafite in the earlier stages of its geological history. The time scale is determined by the leaching rate of the isotope 238U, a process that takes its course in line with first-order kinetics, or something close to it. The leaching rate constant of this uranium isotope was assessed. Based on available data in the literature, the hydro-chemical behavior of various atoms in group A of betafite was analyzed. The chemical composition of the mineral was calculated taking into account the total charge of the cations that the betafite had at the time it was formed, or possibly the last time it was completely reformed as a result of diverse endogenic processes.
KW - Calculations of mineral formula
KW - Chemical shift of X-ray Lα - line
KW - Chemical weathering
KW - Half-leaching time
KW - Leaching kinetic
KW - Metamict minerals
KW - Redox-state of uranium
UR - http://www.scopus.com/inward/record.url?scp=85041129110&partnerID=8YFLogxK
U2 - 10.1007/s00269-018-0941-6
DO - 10.1007/s00269-018-0941-6
M3 - Article
VL - 45
SP - 549
EP - 562
JO - Physics and Chemistry of Minerals
JF - Physics and Chemistry of Minerals
SN - 0342-1791
IS - 6
ER -
ID: 28273638