Fluid inclusion geo-speedmetry for high-pressure type metamorphic rocks
| Project/Area Number |
16K17835
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Petrology/Mineralogy/Economic geology
|
|---|
| Research Institution | Japan Agency for Marine-Earth Science and Technology |
|---|
Principal Investigator |
YOSHIDA Kenta 国立研究開発法人海洋研究開発機構, 海域地震火山部門(火山・地球内部研究センター), 研究員 (80759910)
|
|---|
| Project Period (FY) |
2016-04-01 – 2020-03-31
|
| Project Status |
Completed (Fiscal Year 2019)
|
| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
|
|---|
| Keywords | 深部流体 / 流体包有物 / 沈み込み帯 / 集束イオンビーム装置（FIB） / クライオ電子顕微鏡 / 変成岩 / 集束イオンビーム / 水熱実験 / クライオFIB / 顕微掘削 / ラマン分光 / 地質温度圧力計 / 変成岩体の上昇過程 / 上昇速度計 / レオロジー / 密度の閉鎖温度 |
|---|
| Outline of Final Research Achievements |
Fluid inclusion in metamorphic rocks indicate the physicochemical properties under which they formed. Among the expected physicochemical properties, bulk density of the fluid inclusions are known to be modified during their exhumation to the earth surface, i.e. they can be used as the tool for tracking exhumation history. In this study, we focused on the chemistry of fluid, which is a critical property to determine bulk density. We took special care on the relationship between the occurrence of individual inclusion and deformation history of the host mineral. By using a focused ion beam system that becomes common tool in petrology, individual inclusions can be analyzed "individually".
|
| Academic Significance and Societal Importance of the Research Achievements |
岩石を構成する鉱物の中には水やガスが流体包有物として捕獲されている．この流体包有物には，沈み込み帯地下深部での流体活動が記録されている．地下深部流体は，日本列島地下などで起きているプレート境界地震や火山活動のトリガーになると言われており，深部で発生する流体の量や化学組成を調べることは，日本のようなプレート境界にある国に住む我々にとって重要である．
本研究では，岩石を1ミクロンよりも細かな精度で加工できる集束イオンビーム装置（FIB）と，近年ノーベル化学賞でも取り上げられたクライオ電子顕微鏡を活用し，流体包有物の化学組成を精密に決定する技術を開発した．
|
Report
(5 results)
Research Products
(47 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Journal Article] Micro-excavation and direct chemical analysis of individual fluid inclusion by cryo-FIB-SEM-EDS: Application to the UHP talc-garnet-chloritoid schist from the Makbal Metamorphic Complex, Kyrgyz Tian-Shan2018
Author(s)
Yoshida, K., Orozbaev, R., Hirajima, T., Miyake, A., Tsuchiyama, A,, Bakirov,A., Takasu, A. and Sakiev, K.
-
Journal Title
GEOCHEMICAL JOURNAL
Volume: 52
Issue: 1
Pages: 59-67
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Micro-excavation and direct chemical analysis of frozen fluid inclusion using cryo-FIB-SEM-EDS: a novel tool for petrographic description2018
Author(s)
Yoshida, K., Orozbaev, R., Hirajima, T., Miyake, A., Tsuchiyama, A., Bakirov, A., Takasu, A., and Sakiev, K.
Organizer
European Geoscience Union (EGU) General Assembly 2018
Related Report
Int'l Joint Research
-
-
-
-
[Presentation] Direct chemical analysis of individual fluid inclusion by cryo-FIB-SEM-EDS: an application to the UHP Tlc-Grt-Cld schist from the Makbal Complex, Kyrgyz2017
Author(s)
Yoshida, K., Orozbaev, R., Hirajima, T., Miyake, A., Tsuchiyama, A., Bakirov, A., Takasu, A., and Sakiev, K.
Organizer
12th International Eclogite Conference
Related Report
Int'l Joint Research
-
-
[Presentation] Quantitative analysis of the small fluid inclusion using FIB-XCT technique and Raman microscopy.2016
Author(s)
Yoshida, K., Hirajima, T., Miyake, A., Tsuchiyama, A., Ohi, S., Nakano, T., and Uesugi, K.
Organizer
13th Confocal Raman Imaging Symposium
Place of Presentation
Ulm (ドイツ)
Year and Date
2016-09-26
Related Report
Int'l Joint Research
-
-
-
-
-
-
-
-
-
