Decipherment the reaction process in rock foring minerals???

在形成地球和行星的矿物的材料科学中，已经广泛地基于在形成和反应过程中诱导的织构来估计这类矿物的形成条件。然而，这样的分析并没有成功地令人满意地阐明条件，因为理论背景尚未建立。本研究的目的是：（1）发展一种基于统计力学的新理论，将其应用于矿物反应过程的分析;（2）在此基础上，观察和分析矿物间反应形成的织构，获取反应信息。提出了一种基于统计力学的矿物化学分带和形态预测理论。在发展中，在反应矿物之间的界面处的局部平衡不被假定，并且考虑了一般情况。利用电子显微镜观察了石榴石、方柱石等造岩矿物的化学分带和扇形分带等结构，并根据新理论进行了结构分析。结果之一是估算了变质石榴石形成反应过程中温度变化的加速度，本研究的结果也可应用于材料科学和晶体生长领域中晶体的织构分析，因为本研究的一些论文已发表在该领域的国际期刊上。

In material sciences of minerals forming Earth and planets, the estimation of formation conditions of such minerals has been extensively carried out based on the textures induced during the formation and reaction processes. However, such analyses have not been succeeded satisfactorily in elucidating the conditions, because the theoretical background has not been established. The aims of the present study are that (1)a our new theory based on the statistic mechanics is developed to apply it in the analyses of reaction processes of minerals, and (2)based on the developed theory, the textures formed by reactions between minerals is observed and analyzed to obtain information of the reaction.In the present study, a theory is developed to predict the chemical zoning and morphology of minerals based on the statistic mechanics. In the development, the local equilibrium at an interface between reacting minerals is not assumed and the general cases are considered. Based on the developed theory, the acceleration in temperature change during the reaction can be qualitatively estimated.The observation of the textures such as chemical zoning and sector zoning in rock-forming minerals such as garnet and scapolite, were carried out by using electron microscopies and the textural analyses were carried out based on the newly developed theory. One of the results is that the acceleration of temperature change during the formation reaction of metamorphic garnet is estimated.The results of the present study can be also applied to the textural analysis of crystals in the field of material sciences and crystal growth, because some papers on the present study are published in international journals in such fields.