Studies on ore genesis of Li deposits and isotopic fractionation by isotope analysis of multi-elements

• Project/Area Number: 16K21682
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Economic geology; Earth system and resources engineering
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: ARAOKA DAISUKE 国立研究開発法人産業技術総合研究所, 地質調査総合センター, 研究員 (60738318)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: リチウム鉱床 / 安定同位体比 / 鉱床成因 / 同位体分別 / 地熱かん水 / リチウム同位体 / マグネシウム同位体 / ストロンチウム同位体 / Li同位体 / Mg同位体 / Sr同位体 / 塩湖 / 水ー岩石反応 / イオンクロマトグラフィー / ホウ酸塩溶融 / 炭酸塩胚胎鉱床 / 河川水 / U-Pb年代 / ミシシッピバレー型鉱床 / Ca同位体 / 海底熱水 / ジルコン / 鉱床学 / 地球化学 / 同位体

Outline of Final Research Achievements

For rapid purification of multi-elements for stable isotope analysis, I developed new procedure using borate fusion and an ion chromatography system. Then, Li, Mg, and Sr isotopic compositions in water samples from various reservoirs were determined using developed systems, which revealed variations and factors of changes in those isotopic ratios. Finally, these facts were applied to the isotopic compositions in the samples from Li deposits. The results indicated that economically-important ore-forming fluid in the deposits probably had low Li and Mg isotopic compositions due to the water-rock interaction at high temperature condition.

Academic Significance and Societal Importance of the Research Achievements

レアメタルの一つであるLiは二次電池の普及により近年需要が急激に増加している鉱種であり、新たなLi鉱床の探査・開発が重要となっている。今回の結果は、Li鉱床から採取した試料の安定同位体比により、鉱床の有用性がある程度評価できる可能性を示すことができた。今後は採取済みの試料について追加の同位体比分析を行い、上記仮説をさらに検証していく予定である。

Research Products

• [Int'l Joint Research] British Columbia Geological Survey(カナダ)
• [Int'l Joint Research] SEGEMAR(アルゼンチン)
• [Int'l Joint Research] British Columbia Geological Survey(Canada)
• [Int'l Joint Research] BCGS(Canada)
• [Int'l Joint Research] USGS(米国)
• [Journal Article] Rapid Purification of Alkali and Alkaline-earth Elements for Isotope Analysis (δ ⁷Li, δ ²⁶Mg, ⁸⁷Sr/⁸⁶Sr, and δ ⁸⁸Sr) of Rock Samples Using Borate Fusion Followed by Ion Chromatography with a Fraction Collector System (2019)
  • Author(s): Araoka, D. and Yoshimura, T.
  • Journal Title: Analytical Sciences Volume: 35 Issue: 7 Pages: 751-757
  • DOI: 10.2116/analsci.18P509
  • NAID: 130007676936
  • ISSN: 0910-6340, 1348-2246
  • Year and Date: 2019-07-10
  • Peer Reviewed
• [Journal Article] Indian Monsoonal Variations During the Past 80?Kyr Recorded in NGHP-02 Hole 19B, Western Bay of Bengal: Implications From Chemical and Mineral Properties (2019)
  • Author(s): Ota Yuki、Kawahata Hodaka、Kuroda Junichiro、Yamaguchi Asuka、et al.
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 20 Issue: 1 Pages: 148-165
  • DOI: 10.1029/2018gc007772
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Monsoon-influenced variations in plankton community structure and upper-water column stratification in the western Bay of Bengal during the past 80?ky (2019)
  • Author(s): Ota Yuki、Kuroda Junichiro、Yamaguchi Asuka、Suzuki Atsushi、Araoka Daisuke、Ishimura Toyoho、Kawahata Hodaka
  • Journal Title: Palaeogeography, Palaeoclimatology, Palaeoecology Volume: 521 Pages: 138-150
  • DOI: 10.1016/j.palaeo.2019.02.020
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interregional traceability of Tunisian olive oils to the provenance soil by multielemental fingerprinting and chemometrics (2019)
  • Author(s): Damak Fadwa、Asano Maki、Baba Koji、Suda Aomi、Araoka Daisuke、Wali Ahmed、Isoda Hiroko、Nakajima Mitsutoshi、Ksibi Mohamed、Tamura Kenji
  • Journal Title: Food Chemistry Volume: 283 Pages: 656-664
  • DOI: 10.1016/j.foodchem.2019.01.082
  • NAID: 120007128132
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Comparison of methods for the geochemical determination of rare earth elements: Rock Canyon Creek REE?F?Ba deposit case study, SE British Columbia, Canada (2019)
  • Author(s): Akam Carlee、Simandl George J.、Lett Ray、Paradis Suzanne、Hoshino Mihoko、Kon Yoshiaki、Araoka Daisuke、Green Craig、Kodama Shinsuke、Takagi Tetsuichi、Chaudhry Manzur
  • Journal Title: Geochemistry: Exploration, Environment, Analysis Volume: 印刷中 Issue: 4 Pages: 414-430
  • DOI: 10.1144/geochem2018-044
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Compositional variations, chemical weathering, and provenance of sands from the Cox’s Bazar and Kuakata beach areas, Bangladesh (2018)
  • Author(s): Hossain H. M. Zakir、Hasna Hossain Quazi、Kamei Atsushi、Araoka Daisuke
  • Journal Title: Arabian Journal of Geosciences Volume: 11 Issue: 23 Pages: 1-17
  • DOI: 10.1007/s12517-018-4111-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Lithium, magnesium and sulfur purification from seawater using an ion chromatograph with a fraction collector system for stable isotope measurements (2018)
  • Author(s): Yoshimura Toshihiro、Araoka Daisuke、Tamenori Yusuke、Kuroda Junichiro、Kawahata Hodaka、Ohkouchi Naohiko
  • Journal Title: Journal of Chromatography A Volume: 1531 Pages: 157-162
  • DOI: 10.1016/j.chroma.2017.11.052
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Downstream and seasonal changes of lithium isotope ratios in the Ganges-Brahmaputra river system (2017)
  • Author(s): Manaka Takuya、Araoka Daisuke、Yoshimura Toshihiro、Hossain H. M. Zakir、Nishio Yoshiro、Suzuki Atsushi、Kawahata Hodaka
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 18 Issue: 8 Pages: 3003-3015
  • DOI: 10.1002/2016gc006738
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Zircon U-Pb dating of gabbro and diorite from the Bato pluton, northeast Japan (2017)
  • Author(s): Ejima Terumi、Kon Yoshiaki、Kawano Shigenori、Araoka Daisuke
  • Journal Title: Island Arc Volume: 27 Issue: 1
  • DOI: 10.1111/iar.12222
  • Peer Reviewed
• [Journal Article] Lithium isotopic systematics of submarine vent fluids from arc and back-arc hydrothermal systems in the western Pacific (2016)
  • Author(s): Araoka, D., Nishio, Y., Gamo, T., Yamaska, K., Kawabata, H.
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 17 Issue: 10 Pages: 3835-3853
  • DOI: 10.1002/2016gc006355
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] sample preparation procedure and result of reference material measurements. (2016)
  • Author(s): 荒岡大輔, 昆慶明, 江島輝美
  • Journal Title: BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN Volume: 67 Issue: 2 Pages: 59-65
  • DOI: 10.9795/bullgsj.67.59
  • NAID: 130005262938
  • ISSN: 1346-4272, 2186-490X
  • Peer Reviewed
• [Presentation] Key role in the formation of lithium-rich brine deposits: A constraints from lithium isotope ratios (2018)
  • Author(s): Daisuke Araoka
  • Organizer: International Association on the Genesis of Ore Deposits (IAGOD)
  • Int'l Joint Research
• [Presentation] 炭酸塩胚胎レアアース鉱床のマグネシウム同位体比は何を記録しているか？ (2018)
  • Author(s): 荒岡大輔, 吉村寿紘, 星野美保子, 昆慶明, 児玉信介, George J. Simandl, Suzanne Paradis, Craig Green
  • Organizer: 日本地球惑星科学連合
• [Presentation] アルカリ金属・アルカリ土類金属元素の安定同位体比分析のための簡便な前処理手法の開発 (2018)
  • Author(s): 荒岡大輔, 吉村寿紘
  • Organizer: 日本地球化学会
• [Presentation] リチウム資源の現状と今後の動向 (2017)
  • Author(s): 荒岡大輔
  • Organizer: アドバンスト・バッテリー技術研究会
  • Invited
• [Presentation] ホウ酸塩溶融およびイオンクロマトグラフィーを用いた同位体分析のための岩石試料からの元素分離手法の検討 (2017)
  • Author(s): 荒岡大輔, 吉村寿紘
  • Organizer: 日本地球化学会
• [Presentation] 簡便なアルカリ金属・アルカリ土類金属元素の同位体分析手法開発と古環境分野への応用 (2017)
  • Author(s): 荒岡大輔, 吉村寿紘
  • Organizer: 地球環境史学会