Water-rock interaction modeling in orogenic belts using oxygen isotope

2016 年度 実施状況報告書

• 研究課題/領域番号: 15K05316
• 研究機関: 鹿児島大学
• 研究代表者: Rehman HafizUr 鹿児島大学, 理工学域理学系, 助教 (60505410)
• 研究期間 (年度): 2015-04-01 – 2018-03-31
• キーワード: oxygen isotope / zircon / metamorphism

研究実績の概要

The proposed research is in progress according to the original plan.
(1) Mineral chemical compositions required for the study have been determined.
(2) Zircon from the rocks related to this project have been separated and their U-Pb zircon ages have been determined.
(3) In addition Hafnium isotope analysis of the dated zircon grains have also been carried out.
(4) The results were published in two impact factor journals (Lithos and European Journal of Mineralogy). Third paper also has been accepted for publication in the journal The Island Arc (currently in press). Manuscript of the fourth paper (in-situ zircon delta 18 oxygen isotope values) is ready and will be submitted to international Impact Factor Journal.
(5) Graduate and under-graduate students also participated in the field work to gain experience of the geology of Japan.

現在までの達成度 (区分)

2: おおむね順調に進展している

理由

One of the main targets of this project was to understand the role of water-rock interaction using oxygen isotope. By determining the in-situ delta 18 oxygen values in magmatic and metamorphic zircons, we could trace back the protolith source composition. Moreover, the delta 18 oxygen of metamorphic zircons tells the effect of late-stage geologic processes on the rocks investigated in this study.
The results of this project have been summarized and a manuscript will be submitted to an interntaional Impact Factor Journal.
Additional work on the newly collected geological samples is in progress.

今後の研究の推進方策

Further geochemical and petrological work is undergoing currently. Once the results are obtained, data processing and interpretation will be done. Finally, the results will be submitted for publications in impact factor journals in near future. Undergraduate and master course students are also learning from this project. Some of the results will be presented at International conference.
In summary, the research plan is in progress as planned.
Some of the results will also be presented at International Conference in the current fiscal year.

研究成果

• [雑誌論文] Metamorphic evolution and zircon ages of pelitic granulites in eastern Hebei, North China Craton: Insights into the regional Archean P-T-t history (2017)
  • 著者名/発表者名: Zhanzhan Duan; Chunjing Wei; Hafiz U. Rehman
  • 雑誌名: Precambrian Research 巻: 292 ページ: 240-257
  • DOI: https://doi.org/10.1016/j.precamres.2017.02.008
  • 査読あり / 国際共著
• [雑誌論文] Varieties of the Himalayan eclogites: a pictorial review of textural and petrological features (2017)
  • 著者名/発表者名: Rehman H. U. Jan M. Q., Khan T., Yamamoto H., Kaneko Y.
  • 雑誌名: The Island Arc 巻: - ページ: ---
  • DOI: 10.1111/iar.12209
  • 査読あり / 国際共著 / 謝辞記載あり
• [雑誌論文] Source and mode of the Permian Panjal Trap magmatism: evidence from zircon U&-Pb and Hf isotopes and trace element data from the Himalayan ultrahigh-pressure rocks (2016)
  • 著者名/発表者名: Rehman H. U. Lee H. Y., Chung S. L., Khan T., O’Brien P. J., Yamamoto H.
  • 雑誌名: Lithos 巻: 260 ページ: 286-299
  • DOI: 10.1016/j.lithos.2016.06.001
  • 査読あり / 国際共著 / 謝辞記載あり
• [雑誌論文] EBSD-measured crystal preferred orientations of eclogites from the Sanbagawa metamorphic belt, central Shikoku, SW Japan (2016)
  • 著者名/発表者名: Rehman H. U. Mainprice D., Barou F., Yamamoto H., Okamoto K.
  • 雑誌名: European Journal of Mineralogy 巻: 28 ページ: 1155-1168
  • DOI: 10.1127/ejm/2016/0028-2574
  • 査読あり / 国際共著 / 謝辞記載あり
• [学会発表] Varieties of the Himalayan eclogites: a review (2016)
  • 著者名/発表者名: Rehman, H. U.
  • 学会等名: 日本地質学会第１２３年学術大会
  • 発表場所: 桜上水 (東京都・世田谷区）
  • 年月日: 2016-09-11 – 2016-09-13
• [学会発表] Geochemistry and Tectonic Settings of Felsic Dykes in the Neoproterozoic Nagar Parkar Igneous Complex, SE Sindh, Pakistan (2016)
  • 著者名/発表者名: Khan, T., Murata, M., Jan, M. Q., Rehman, H. U., Zafar, M., Ozawa, H., Qadir A., Mehmood, S.
  • 学会等名: The Seventh International Dyke Conference, “Dyke Swarms: Keys to Paleogeographic Reconstruction”, At China, Volume: Vol. 90, Supp.1 2016
  • 発表場所: Beijing (China)
  • 年月日: 2016-08-18 – 2016-08-20
  • 国際学会
• [学会発表] Crystallographic preferred orientation analysis of Sanbagawa eclogites using a Scanning Electron Microscope EBSD method (2016)
  • 著者名/発表者名: Kouguchi, S., Rehman, H. U.
  • 学会等名: Japan Geoscience Union Meeting 2016, International Session "S-MP13"
  • 発表場所: 幕張メッセ（千葉県・千葉市）
  • 年月日: 2016-05-21 – 2016-05-26
  • 国際学会