¹ Michitoshi Miyahisa, 1967: Report of gold deposits survey in Takamine/Ohra district, Kagoshima prefecture, Association of Kagoshima Prefecture mineral resources development promotion.

² Gold Mines of Japan, 1989. The Mining & Materials Processing Institute of Japan.

³ MITI (1984- 1989): Report on the regional survey of the Hokusatsu-Kushikino region, Showa 58 (FY) to 63(FY). Ministry of International Trade and Industry.

⁴ Watanabe, 2005. Late Cenozoic evolution of epithermal gold metallogenic provinces in Kyushu, Japan. Mineralium Deposita (2005) 40: pp 307-323.

⁵ Ota, R., Koriyama, S., and Wakimoto, Y., Geological classification of Shirasu, Planning Department of Kagoshima Prefecture, 1967. pp. 7-19 (in Japanese).

⁶ METI, 2000. Report on the regional geological structure survey in the Hokusatsu-Kushikino area in the fiscal year Heisei 11. The Agency of Natural Resources and Energy of MITI.

⁷Sumitomo Metal Mining Co., LTD. website.

⁸ Garwin et al. 2005. Tectonic setting, Geology, and gold and copper mineralization in the Cenozoic magmatic arcs of Southeast Asia and the West Pacific. Economic Geology 100th Anniversary Vol. pp 891-930