2023 Fiscal Year Research-status Report
Study of the nano-scale plastic deformation in zircon: application to meaningful geochronology
| Project/Area Number |
20K04135
|
|---|
| Research Institution | Kagoshima University |
|---|
Principal Investigator |
礼満 ハフィーズ 鹿児島大学, 理工学域理学系, 准教授 (60505410)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
山本 啓司 鹿児島大学, 理工学域理学系, 教授 (60244224)
|
|---|
| Project Period (FY) |
2020-04-01 – 2025-03-31
|
| Keywords | Zircon / EBSD / Metamorphism / eclogites / granulites |
|---|
| Outline of Annual Research Achievements |
Research plans for the proposed project have been mainly achieved with some delay due to the COVID-19 outbreak and its effects.
Rocks samples collected during geological field surveys were investigated according to the plan.
Petrographic and textural details, mineral chemistry, and zircon single-grain EBSD analysis were conducted on potential samples. Then the deformed and undeformed domains within the zircon grains were analyzed, using the Nano-SIMS, for U-Pb isotope ratios and age dating. The results have been already presented at International conference, followed by publishing articles in international scientific journals. In addition, some of the research results are summarized, written as manuscript, and have been submitted to scientific journals which are currently under review.
|
| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
Although, the COVID-19 pandemic-related restrictions caused some delays in conducting the field and experimental works according to original plan. However, with limited traveling opportunities and ease in analysis last year, significant progress has been achieved. Further work on the proposed project is underway from which fruitful results are expected in the near future.
Data processing and manuscript preparations are in progress. In-situ EBSD analysis on additional samples have been done but isotopic work is still remaining that can be done during the current fiscal year.
|
| Strategy for Future Research Activity |
It is planned that Nano-Scale U-Pb and/or Pb-Pb isotope analyses on different domains within single zircon grains will be conducted during the current and last year of the the project. In addition, data already obtained in last year will be processed, illustrated, summarized, and the outcomes will be presented at international scientific conference and then published in scientific journals. Manuscripts on other works that are currently underway will also be prepared and published in scientific journals.
|
| Causes of Carryover |
Due to restrictions on travels and analytical works two years ago because of the COVID-19 pandemic, the funded amount was not transferred to the previous yearthat will be used in the next fiscal year.
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Zircon U-Pb and Hf isotope data from Himalayan Metamorphic Belt, Kaghan Valley, Pakistan constraining crustal growth in Archean and Proterozoic, recycling and regeneration in Paleozoic, and metamorphic regrowth during Mesozoic2023
Author(s)
Hafiz U. Rehman, Hao-Yang Lee, Sun-Lin Chung, Chunjing Wei, Zhanzhan Duan, Hiroshi Yamamoto, Tahseenullah Khan
Organizer
International Association for Gondwana Research 2023 Convention and 20th International Conference on Gondwana to Asia
Int'l Joint Research
-
-
-
-
-
