Computer Science
Scientific paper
Feb 1973
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37..249o&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 37, Issue 2, pp.249-257
Computer Science
Scientific paper
The molecular orbital and crystal field theories are compared and their applicabilities to bonding in silicates are discussed, A molecular orbital bonding model is favoured for orthopyroxene since bonding in both tetrahedral and non-tetrahedral sites within the crystal structure can be described and accommodated by the theory. It is suggested that Fe located in M 2 sites has more electron delocalisation (or covalence) associated with it than Fe located in the M 1 site. Order-disorder phenomena in orthopyroxene are discussed in relationship to Mueller's (1970) two-step exchange mechanism, whereby the first step corresponds to vacancy activation and the second step to exchange of Fe between an `octahedral' site and a vacancy.
Keith O'Nions R.
Smith Dorian G. W.
No associations
LandOfFree
Bonding in silicates: an assessment of bonding in orthopyroxene does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Bonding in silicates: an assessment of bonding in orthopyroxene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bonding in silicates: an assessment of bonding in orthopyroxene will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1444876