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Progress in Earth and Planetary Science
Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Water and magmas: insights about the water solution mechanisms in alkali silicate melts from infrared, Raman, and 29Si solid-state NMR spectroscopies

Fig. 2

Raman spectra of the lithium (LS4), sodium (NS4), and potassium (KS4) tetrasilicate glasses with 0.0 (Anh.), 3.3, 9.4, and 17.6 nom. mol % [H2OTOT]. Raman intensities are offset vertically for a better visibility, with the exception of the figure in bottom right. Dashed lines are used as visual markers of the signals contributing in the 820–1350 cm−1 portion of the spectra (see text). The small sharp peak located near 2330 cm−1 in the lower right figure is a signal from atmospheric N2

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