- Abstract:
- 29Si MAS-NMR spectra are presented for a series of glasses on the join CaMgSi2O6NaAlSi3O8. The spectra are broad, unresolved and symmetrical. The chemical shifts, Δ29Si, depart significantly from a simple linear mixing model near XNaAlSi3O8 = 0.8 and several possible structural models are discussed. Addition of CaMgSi2O6 to NaAlSi3O8 melts may cause replacement of Na+ by Ca2+ as the charge-balancing ion in the aluminosilicate polyanion complexes. © 1987.
- Publication status:
- Published
- Publisher copy:
- 10.1016/0009-2541(87)90056-8
-
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- Journal:
- CHEMICAL GEOLOGY
- Volume:
- 62
- Issue:
- 1-2
- Pages:
- 43-47
- Publication date:
- 1987-04-01
- DOI:
- ISSN:
-
0009-2541
- URN:
-
uuid:21e1cd4b-b3ad-4698-b766-0f71c089e8dd
- Source identifiers:
-
170071
- Local pid:
- pubs:170071
- Language:
- English
- Copyright date:
- 1987
Journal article
A HIGH-RESOLUTION SI-29 NUCLEAR-MAGNETIC-RESONANCE STUDY OF ORDERING IN SILICATE-GLASSES ON THE JOIN CAMGSI2O6-NAALSI3O8
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