[EJ] Oral

S (Solid Earth Sciences) » S-RD Resources, Mineral Deposit & Resource Exploration

[S-RD33] Resource Geology

Wed. May 23, 2018 3:30 PM - 5:00 PM A11 (Tokyo Bay Makuhari Hall)

convener:Tsubasa Otake(Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University), Daisuke Araoka(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Ryohei Takahashi(秋田大学大学院国際資源学研究科, 共同), Tatsuo Nozaki(Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology), Chairperson:Takahashi Ryohei(Faculty of International Resource Sciences, Akita University), Araoka Daisuke

Ore deposits consisting of supracrustal concentrated valuable elements and minerals result from 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 different academic fields in Earth Science including Geology, Petrology, Mineralogy, and Microbiology is required to understand the genesis of ore deposits. The filed 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 resources 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.

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3:30 PM - 3:45 PM

[SRD33-11] A magnesium isotopic study of the evaporite deposits of the Messinian salinity crisis

*Toshihiro Yoshimura¹, Daisuke Araoka², Junichiro Kuroda³, Yuta Isaji³, Francisco J. Jiménez-Espejo¹, Stefano Lugli⁴, Vinicio Manzi⁵, Marco Roveri⁵, Naohiko Ohkouchi¹ (1.Department of Biogeochemistry, Japan Agency for Marine-Earth Science and Technology, 2.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 3.Atmosphere and Ocean Research Institute, the University of Tokyo, 4.Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, 5.Physics and Earth Science Department, University of Parma)

3:45 PM - 4:00 PM

[SRD33-12] Mg isotopic composition of submarine vent fluids from arc and back-arc hydrothermal systems in the western Pacific

*EOM JIWON¹, Daisuke Araoka², Toshihiro Yoshimura³, Toshitaka Gamo¹, Hodaka Kawahata¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.AIST, 3.JAMSTEC)

4:00 PM - 4:15 PM

[SRD33-13] Sphalerite mineral chemistry and microthermometry: Implications for the mineralization of the Kay Tanda epithermal gold deposit, Lobo, Batangas, Philippines

*Sofia Marah Pascual Frias¹, Ryohei Takahashi¹, Akira Imai² (1.Akita University, 2.Kyushu University)

4:15 PM - 4:30 PM

[SRD33-14] Sr isotope ratios identify origins of detrital materials in ferromanganese crusts: implication for tectonic and climatic impacts to submarine environment

*Keishiro Azami¹, Naoto Hirano², Jun-Ichi Kimura³ (1.Department of Systems Innovation, University of Tokyo, 2.Center for Northeast Asian Studies, Tohoku University, 3.Department of Solid Earth Geochemistry, Japan Agency for Marine-Earth Science and Technology)

4:30 PM - 4:45 PM

[SRD33-15] Source of iodine in the groundwater of Hokkaido inferred by ratios of halogens.

*Takuma Murakami¹, Shuji Tamamura¹, Akio Ueno¹, Noritaka Aramaki¹, Satoshi Tamazawa¹, AKM Badrul Alam¹, Toshifumi Igarashi², Katsuhiko Kaneko¹, Isao Machida³, Atsunao Marui³ (1.Horonobe Research Inst. for the Subsurface Environment, 2.Faculty of Engineering, Hokkaido University, 3.National Institute of Advanced Industrial Science and Technology)

4:45 PM - 5:00 PM

[SRD33-16] Mechanism of zinc and lead release from hydrothermal minerals into seawater; implications for impact assessment of seafloor metal-mining

*Shigeshi Fuchida¹, Jun-ichiro Ishibashi², Kazuhiko Shimada², Masanobu Kawachi¹, Hiroshi Koshikawa¹ (1.National Institute for Environmental Studies, 2.Kyushu University)

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