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タイトル: Studies of the Thermal State of the Earth. The 11th Paper : Terrestrial Heat Flow Measurements in Kyushu District, Japan
その他のタイトル: 地球熱学 第11報 : 九州地方に於ける地殻熱流量測定結果
著者: Horai, Ki-iti
著者(別言語): 宝来, 帰一
発行日: 1963年6月30日
出版者: 東京大学地震研究所
掲載誌情報: 東京大学地震研究所彙報. 第41冊第1号, 1963.6.30, pp. 149-165
抄録: Terrestrial heat flow was measured in 5 localities in Kyushu District. Of these 5 localities, one (Takamatsu) is a coal mine, while the other 4 (Izuhara, Kushikino, Makimine, Taio) are metal mines. Geothermal gradients measured in these localities are 2.93°C/100w in Izuhara (Taishu mine), 3.06℃/100 m in Takamatsu, 1.71℃/100 m in Taio, and 2.57℃/100m in Makimine, respectively. In Kushikino no reliable thermal gradient was obtained. Combining the thermal gradients with thermal conductivity of rocks in each locality, values of heat flux were obtained as follows; 2.18×1O-6 cal/cm2 sec in Izuhara, 1.92×1O-6cal/cm2 sec in Takamatsu, 1.79×1O-6 cal/cm2 sec in Makimine, and 1.05×1O-6 cal/cm2 sec in Taio. The results indicate a relatively high (more than 2×1O-6 cal/cm2 sec) heat flow in Tsushima, an island about 100 km north-west of Kyushu proper, while in Kyushu proper heat flux is high but only on the 1×10-6 cal/cm2 sec level. It is necessary to make more measurements to discuss the detailed distribution of terrestrial heat flow in the District.
URI: http://hdl.handle.net/2261/12101
ISSN: 00408972


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