| Project/Area Number |
14204052
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Petrology/Mineralogy/Science of ore deposit
|
|---|
| Research Institution | KYOTO UNIVERSITY |
|---|
Principal Investigator |
KITAMURA Masao KYOTO UNIVERSITY, Faculty of Science, Professor, 大学院・理学研究科, 教授 (70004489)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHMOBAYASHI Norimasa KYOTO UNIVERSITY, Faculty of Science, Associate Professor, 大学院・理学研究科, 助教授 (70235688)
MIYAKE Akira KYOTO UNIVERSITY, Faculty of Science, Assistant Professor, 大学院・理学研究科, 助手 (10324609)
|
|---|
| Project Period (FY) |
2002 – 2004
|
| Project Status |
Completed (Fiscal Year 2004)
|
| Budget Amount *help |
¥45,890,000 (Direct Cost: ¥35,300,000、Indirect Cost: ¥10,590,000)
Fiscal Year 2004: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2003: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2002: ¥40,430,000 (Direct Cost: ¥31,100,000、Indirect Cost: ¥9,330,000)
|
|---|
| Keywords | rock forming minerals / reaction process / phase transformation / computer simulation |
|---|
| Research Abstract |
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.
|
