EARTH SCIENCE APPLICATIONS OF ALCHEMI

被引:8
作者
SMYTH, JR
MCCORMICK, TC
机构
[1] Univ of Colorado, United States
基金
美国国家科学基金会;
关键词
Crystals--Analysis; -; Phosphates; Rock;
D O I
10.1016/0304-3991(88)90380-4
中图分类号
TH742 [显微镜];
学科分类号
摘要
ALCHEMI, Atom Location by CHanneling-Enhanced MIcroanalysis, has wide potential application in the Earth Sciences for determination of site distributions of major and minor elements in minerals. Qualitative measurements should be useful in providing crystal-chemical information on the control of site preferences by site energies and sizes. Quantitative determinations are possible by ALCHEMI and may be used as indicators of the temperature and pressure histories of rocks. ALCHEMI has recently been applied to olivine, spinel, pyroxene, garnet, feldspar, ilmenite, and dolomite. Based on computer simulations, it should also be possible to determine major and minor element distributions in pseudobrookite, perovskite, ferberite, bixbyite, andalusite, sillimanite, apatite, epidote, and melilite using the ALCHEMI technique.
引用
收藏
页码:77 / 87
页数:11
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