Te-Xe法による鉱化年代測定ー熱水性金鉱床を例としてー

高岡 宣雄; 島田 允尭; 島 正子; 中村 智樹; 長尾 敬介; 佐川 斉; 岡崎 隆司; 島田 和彦

doi:10.14862/geochemproc.59.0.25.0

Abstracts of Annual Meeting of the Geochemical Society of Japan

Session ID : 1B03

DOI https://doi.org/10.14862/geochemproc.59.0.25.0

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Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

Te-Xe Dating for Mineralization Ages- As an Example of Some Hydrothermal Gold Deposits

Nobuo Takaoka, *Nobutaka Shimada, Masako Shima, Tomoki Nakamura, Keisuke Nagao, Hitoshi Sagawa, Ryuji Okazaki, Kazuhiko Shimada

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Keywords: double-beta-decay, mineralization age, tellurium, Te-Xe age, hydrothermal gold deposit

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Abstract

Based on the newly determined double-beta-decay half life of 130Te, we have measured the direct mineralization ages on Te-bearing minerlas from some hydrothermal gold deposits by the Te-Xe method. The obtained ages are compared with previously reported K-Ar, Ar-Ar, or U-Pb ages of the hostrocks and vein-forming gangue minerlas. We will refer to the geochemical significance of the dating of direct minerlaization age by Te-Xe method.

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