Results of terrestrial heat flow measurements in Peru and Ecuador conducted in 1969, are reported. Eight different sites in Peru and one site in Ecuador were visited for underground temperature measurement. However, data from only five metal mines in Peru and the metal exploration site in Ecuador were usable. The geothermal gradient data on four oil fields in Peru and two in Ecuador were referenced. Although high heat flow has been indicated on the continent side of the Andes (the Gasapalca and the Guajone mines and the Ucayali oil field), low geothermal gradients were also found in mines in high Andes (the Raura and Cerro Verde mines). The latter are suspected to be the result of ground water circulation. The highly disturbed cases of the Morococha and San Vicente mines showed almost zero gradient. Much more work is needed to delineate the regional heat flow pattern of the area.
1969年,日米科学協力事業の一環として,地殻熱流量測定を実施した.この結果,ペルー国内に5点,エクアードル国内に1点の熱流量値が得られた他,油田地帯の温度検層データを用いて,ペルー国内に4点,エクアドール国内に2点の地中温度勾配が求められた.アンデス山系中およびその内陸部においては,明瞭に高熱流量を示す点が分布すると同時に,低熱流量点も多く分布し複雑な様相を呈している.測定値への各種温度擾乱の影響も無視出来ない場合が多く,今後の調査を必要とするところが大きい.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
55
号
1
ページ
55 - 74
発行年
1980-08-25
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
日本十進分類法
453
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
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Report of Heat Flow Measurements in Peru and Ecuador
ji0551004.pdf
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