[H-RE11] Earth Resource Science

Mon. May 22, 2023 3:30 PM - 4:45 PM 201A (International Conference Hall, Makuhari Messe)

convener:Tsubasa Otake(Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University), Kenzo Sanematsu(Mineral Resource Research Group, Institute for Geo-Resources and Environment, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Ryohei Takahashi(Graduate School of International Resource Sciences, Akita University), Tatsuo Nozaki(Submarine Resources Research Center, Research Institute for Marine Resources Utilization, Japan Agency for Marine-Earth Science and Technology), Chairperson:Ryohei Takahashi(Graduate School of International Resource Sciences, Akita University), Kenzo Sanematsu(Mineral Resource Research Group, Institute for Geo-Resources and Environment, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)

Ore deposits containing valuable elements and minerals at high concentrations in supracrustal rocks are formed by the Earth's dynamics including magmatism, hydrothermal activity, metamorphism, and weathering. The formation of ore deposits is also closely associated with global environmental changes and biological evolution in the Earth's history. Involvement of difference academic fields in earth sciences including geology, petrology, geochemistry, mineralogy, and microbiology is required to understand the genesis of ore deposits. The field of resource geology is essential not only for efficient exploration and development of ore deposits but also for better understanding and assessment of hazardous elements that may be caused by the resource development. This session widely covers various topics of field investigation and observation, laboratory experiments, theoretical calculation, development of analytical methods and others related to the supracrustal migration and concentration of elements. We also welcome research related to new energy resources (e.g., hydrogen, geothermal), efficient extraction of metal resources, and net zero carbon emission, and so on, in either scientific or engineering perspective.

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3:30 PM - 3:45 PM

[HRE11-05] LA-ICP-MS analysis on sulfide minerals from the Higashi-Aogashima hydrothermal site to understand the host phase of gold

*Tatsuo Nozaki^1,2,3,4, Junji Torimoto¹, Yutaro Takaya^2,5,1, Kazuki Kohama⁶, Kotaro Yonezu⁶, Satoshi Okada¹, Takahiro Kuribayashi⁷, Toshiro Nagase⁷, Samuel Morfin⁸, Keiko Hattori⁸ (1.JAMSTEC, 2.Univ. of Tokyo, 3.Kobe Univ., 4.Chiba Tech, 5.Waseda Univ., 6.Kyushu Univ., 7.Tohoku Univ., 8.Univ. of Ottawa)

3:45 PM - 4:00 PM

[HRE11-06] Sulfur cycles around ca. 15 Ma Kuroko deposits and new perspective for causative factors of mass-independent fractionation of sulfur

*Tomoaki Koya¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate school of science, Tohoku University)

4:00 PM - 4:15 PM

[HRE11-07] Spatial variation of the δ¹⁸O and δD isotopic signatures of ore-forming fluids within a Au-bearing vein in the Hishikari deposits, Kagoshima, Japan

*Jonathan Tandang Macuroy¹, Ryohei Takahashi¹, Akira Hara², Yoshinori Okaue², Akira Imai³, Pearlyn Manalo¹, Hinako Sato¹, Andrea Agangi¹ (1.Akita Univ., 2.Sumitomo Metal Mining Co., Ltd., 3.Kyushu Univ.)

4:15 PM - 4:30 PM

[HRE11-08] Study on the mineralization age of the Akenobe polymetallic deposit in the southwest Japan, on the basis of Re-Os geochronology.

*Mitsuki Ogasawara¹, Junichiro Ohta^1,2, Mizuki Ishida¹, Kentaro Nakamura^1,2, Kazutaka Yasukawa¹, Koichiro Fujinaga^1,2, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology)

4:30 PM - 4:45 PM

[HRE11-09] Geochemistry and mineralogy of granite saprolite beneath sedimentary kaolin deposits in the Seto district, central Japan

Haruna Asai², *Kikuchi Ryosuke¹, Yoko Ohtomo¹, Tsubasa Otake¹, Tsutomu Sato¹ (1.Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, 2.Graduate School of Engineering, Hokkaido University)