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Identifying the coordination of silicon by magic‐angle‐spinning NMR: Thickness of the Venus lithosphere estimated from topography and gravity” by A. Cazenave and K. Dominh
Author(s) -
Thomas John M.,
GonzalezCalbert Jose M.,
Fyfe Colin A.,
Gobbi Gian C.,
Nicol Malcolm
Publication year - 1983
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl010i001p00091
Subject(s) - cristobalite , stishovite , quartz , silicon , magic angle spinning , lithosphere , materials science , geology , tridymite , mineralogy , crystallography , nuclear magnetic resonance spectroscopy , nuclear magnetic resonance , chemistry , composite material , physics , metallurgy , seismology , tectonics
Six‐coordinated Si in stishovite yields a sharp 29 Si MASNMR signal at −191.3 ±0.2 ppm from TMS, well‐removed from the characteristic signal associated with tetrahedral coordination in quartz, cristobalite, and other, less crystalline siliceous solids.