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- W2000616616 abstract "Surface snow samples have been analyzed for a total of 37 elements including Na, Mg, Al, K, Ca, Fe, Ba, Cd, Fe, Cd, Cr, Cu, Ga, Li, Mn, Pb, Se, Sr, V, Zn, As, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Th by inductively coupled plasma mass spectroscopy (ICP-MS). Rare earth elements in surface snow were evaluated after preconcentration of the samples in a class 1000 clean room. These samples were collected between 1991–1993 during the oversnow traverses along a 2200 km route in East Queen Maud Land, Antarctica. They include one at Dome Fuji Station (77°32′S, 24°08′E; 3810 m a.s.l.) built on the top of the second highest dome. In coastal area, fallout flux for Na, Mg, Sr and Cu or more weakly for Ca and Ba shows an apparent decrease according to the distance from the coast. On the other hand, fallout flux for Co, Ni and Cd shows an increase at 2500–3000 m or >3500 m above sea level. For Mn, Se, Zn and As, it shows a combined pattern of these two types. For Al, V and Pb, a constant profile with an intermittent peaks along this route was indicated. These geographical distributions of fallout flux for each element could reflect polar stratospheric precipitation or long-range tropospheric transport from the southern hemisphere. In the present study, concentrations of rare earth elements in Antarctic surface snow at sub-ppt level are first reported. A clear rare earth pattern is noticed in the Antarctic samples and rare earth ratios are also valuable to estimate anthropogenic emissions to the Antarctica." @default.
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- W2000616616 date "1999-04-01" @default.
- W2000616616 modified "2023-09-28" @default.
- W2000616616 title "Geographical variations of major and trace elements in East Antarctica" @default.
- W2000616616 doi "https://doi.org/10.1016/s1352-2310(98)00243-x" @default.
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