Crynodeb
Feldspars form a solid-solution series whereby the K-content may range from 0 to 14%. LA-ICP-MS measurements for density-separated single-grains of feldspar yielded realistic concentrations of K within the range of those naturally occurring, and also highlighted the difficulty in isolating the pure end members during density-separation. No direct relationship was found between the thermal stability of the infrared-stimulated luminescence (IRSL) signal and measured K-content of individual grains. However, the brightest IRSL and post-IR IRSL signals originated from grains with ∼12% K-content. All grains giving a measurable signal had K-content between 6 and 13%, therefore it is suggested that an internal K-content of 10 ± 2% can be assumed for routine single-grain dating of density-separated K-feldspars.
Iaith wreiddiol | Saesneg |
---|---|
Tudalennau (o-i) | 790-796 |
Nifer y tudalennau | 7 |
Cyfnodolyn | Radiation Measurements |
Cyfrol | 47 |
Rhif cyhoeddi | 9 |
Dyddiad ar-lein cynnar | 02 Chwef 2012 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - Medi 2012 |
Digwyddiad | Proceedings of the 13th International Conference on Luminescence and Electron Spin - Toruń, Gwlad Pŵyl Hyd: 10 Gorff 2011 → 14 Gorff 2011 |