Fig. 4From: Water and magmas: insights about the water solution mechanisms in alkali silicate melts from infrared, Raman, and 29Si solid-state NMR spectroscopiesRelative area of the Raman signals assigned to Q 2, Q 3, and Q 4 units composing the LS4 (top), NS4 (middle), and KS4 (bottom) glasses as a function of their nominal water concentration. Errors are given at the 1σ confidence interval. If not visible, they are smaller than the symbol sizesBack to article page