Xiao, Yuehui, James Kirkpatrick, R., Hay, Richard L., Kim, Youn Joong, Phillips, Brian L. (1995) Investigation of Al,Si order in K-feldspars using 27Al and 29Si MAS NMR. Mineralogical Magazine, 59 (394) 47-61 doi:10.1180/minmag.1995.59.394.05
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Investigation of Al,Si order in K-feldspars using 27Al and 29Si MAS NMR | ||
| Journal | Mineralogical Magazine | ISSN | 0026-461X |
| Authors | Xiao, Yuehui | Author | |
| James Kirkpatrick, R. | Author | ||
| Hay, Richard L. | Author | ||
| Kim, Youn Joong | Author | ||
| Phillips, Brian L. | Author | ||
| Year | 1995 (March) | Volume | 59 |
| Issue | 394 | ||
| Publisher | Mineralogical Society | ||
| Download URL | https://rruff.info/doclib/MinMag/Volume_59/59-394-47.pdf+ | ||
| DOI | doi:10.1180/minmag.1995.59.394.05Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 2611 | Long-form Identifier | mindat:1:5:2611:0 |
| GUID | 0 | ||
| Full Reference | Xiao, Yuehui, James Kirkpatrick, R., Hay, Richard L., Kim, Youn Joong, Phillips, Brian L. (1995) Investigation of Al,Si order in K-feldspars using 27Al and 29Si MAS NMR. Mineralogical Magazine, 59 (394) 47-61 doi:10.1180/minmag.1995.59.394.05 | ||
| Plain Text | Xiao, Yuehui, James Kirkpatrick, R., Hay, Richard L., Kim, Youn Joong, Phillips, Brian L. (1995) Investigation of Al,Si order in K-feldspars using 27Al and 29Si MAS NMR. Mineralogical Magazine, 59 (394) 47-61 doi:10.1180/minmag.1995.59.394.05 | ||
| In | (1995, March) Mineralogical Magazine Vol. 59 (394) Mineralogical Society | ||
| Abstract/Notes | AbstractThis paper presents a 27Al and 29Si MAS NMR study of K-feldspars and demonstrates that the spectra are sensitive to variations in the state of Al,Si order. For synthetically annealed samples, the results are in agreement with previous IR spectroscopy (Harris et al., 1989) and demonstrate that Al,Si rearrangement continues after the samples have become monoclinic as determined by powder XRD. NMR methods provide a significantly improved picture of the state of local Al,Si order in such samples. For triclinic samples, measures of the state of Al,Si order (M1 and M2 of 27Al spectra and M2 of 29Si spectra) correlate well with site occupancies determined by powder XRD, but for the monoclinic samples the NMR parameters continue to change whereas the XRD parameters do not. Interpretations based on the NMR results for the synthetically disordered samples are consistent with 1-step disordering, as observed by XRD. 27Al and 29Si MAS NMR is likely to be a useful tool for probing the state of local Al,Si order in a wide variety of natural samples. | ||
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