| A New Scheme for Calculating Mineral End-Members With Reference to Clinopyroxene And Garnet |
| |
| 摘 要： | In order to eliminate the defect of successively separative calculations of different end-members of a min-eral and to establish a widely applicable new scheme for calculating mineral end-members, the use of the linearprogramming technique is proposed to calculate simultaneously all end-members in this paper. All calculationswith the scheme under study can result in non-negative values. In the case of calculating end-members ofclinopyroxene, the Eskola's molecule is introduced so as to reach stoichiometry. When certain minor elementsin solid solutions are present in a remarkable amount, by adding to the equations the vectors of the corre-sponding end-members and adjusting the component vectors it is possible to obtain calculation results, in-cluding those of such end-mempbers. The possibility of using the calculation scheme under study to estimate theFe~(3+)/Fe~(2+) ratio of a mineral from electron microprobe analysis is also discussed in this paper.
|
A New Scheme for Calculating Mineral End-Members With Reference to Clinopyroxene And Garnet |
| |
| Authors: | Yang Jianjun |
| |
| Abstract: | Abstract In order to eliminate the defect of successively separative calculations of different end-members of a mineral and to establish a widely applicable new scheme for calculating mineral end-members, the use of the linear programming technique is proposed to calculate simultaneously all end-members in this paper. All calculations with the scheme under study can result in non- negative values. In the case of calculating end- members of clinopyroxene, the Eskola's molecule is introduced so as to reach stoichiometry. When certain minor elements in solid solutions are present in a remarkable amount, by adding to the equations the vectors of the corresponding end-members and adjusting the component vectors it is possible to obtain calculation results, including those of such end-members. The possibility of using the calculation scheme under study to estimate the Fe3+ / Fe2+ ratio of a mineral from electron microprobe analysis is also discussed in this paper. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《Acta Geologica Sinica》浏览原始摘要信息 |
| 点击此处可从《Acta Geologica Sinica》下载免费的PDF全文 |
