Abstract
Variations in supercell parameters and chemical compositions for nine samples of antigorite from the Saganoseki area were studied. The XRD patterns give various A parameters of the supercell as well as varying subcell dimensions. Furthermore, SAED patterns show a wider range of A parameters, from 32 to 60 Å. The antigorite from Saganoseki has a high Al/Fe value. The large parameters of the supercell in antigorite are characteristic of serpentinites formed under low-temperature and high-temperature and high-pressure (pumpellyite-actinolite facies) conditions. The AEM rsults suggest that the correlations of the Fe contents or the Al contents with M parameter are not always distinct within a specimen, and may depend on other structural and chemical parameters. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 93-103 |
| Number of pages | 11 |
| Journal | Canadian Mineralogist |
| Volume | 32 |
| Issue number | 1 |
| Publication status | Published - Jan 1 1994 |
All Science Journal Classification (ASJC) codes
- Geochemistry and Petrology