1. 1)Barnes, J. W.(1988): Ores and Minerals: Introducing Economic Geology. Open Univ. Press. Milton Keynes and Philadelphia(Open University Press), p. 181.
2. 2)古賀昭人(1973):地熱地帯のナウな化学診断法,温研紀要, Vol.25,No.4,pp. 167-177.
3. 3)古賀昭人・野田徹郎(1974):地熱地帯の噴気がもたらすもの,大分県温泉調査研究会報告,Vol. 25,pp. 48-52.
4. 4)古賀昭人・野田徹郎(1975):地熱地帯の蒸気系における地球化学的探査法,地熱,Vol. 12,No. 4,pp. 18-21.
5. 5)Matlich, J.S. and Buseck, P. R.(1975): Exploration for geothermal areas Using mercury; A new geochemical technique, 2nd U. N. Symposium on the Development and Use of Geothermal Resources. San Francisco, Vol.Ⅲ, pp. 785-792.