Skip to main content
Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

From: 29Si solid state NMR and Ti K-edge XAFS pre-edge spectroscopy reveal complex behavior of Ti in silicate melts

Fig. 4

Stacked 29Si NMR data for NS8 glass at various Ti concentrations, normalized by integrated intensity. Peaks at − 96 and − 109 ppm are Q3 and Q4, respectively. Compared with the NS4 glasses, Ti-free NS8 glass exhibits a more pronounced Q4 peak, as is predicted based on the Na:Si of the glass. As with the NS4 glasses, there is a progressive positive shift in peak energy of the Si Q4 peak, likely as a result of Ti nearest neighbors for the Si Q4 species. Open circles are fitted peak centers

Back to article page