LAPSE:2018.1077
Published Article
LAPSE:2018.1077
Comparative Study of the Subsurface Thermal Structure in Northern Honshu, Japan, Based on Normalized Temperature Data and Solute Geothermometers
Yota Suzuki, Seiichiro Ioka, Hirofumi Muraoka
November 27, 2018
To promote geothermal development in Aomori Prefecture, Japan, this study compiled a database of the geothermal resources of the prefecture, which included chemical data for 786 hot springs, temperature data for 26 natural springs, and subsurface temperature data for 35 wells. A map of the activity index distribution for the entire prefecture was also developed using the Aomori Prefecture Geothermal Resource database, and its efficiency was discussed by comparison with the distribution of Quaternary volcanoes and the temperature distribution map calculated using quartz and Na-K solute geothermometers. The activity index distribution map for the entire prefecture showed a good fit with both the distribution map of a region with a sharp eastern edge of low-velocity zones in the mantle wedge and the volcanic front, as well as the temperature distribution map calculated using the quartz and Na-K geothermometers. This reflected the effectiveness of the developed map, which indicated the Hakkoda-san and Hiuchi-dake areas as promising for geothermal development. Given that the activity index distribution map is easy to use, it could become a method of assessment, in conjunction with temperature distribution maps calculated using solute geothermometers, for detecting promising areas in the early stages of geothermal exploration.
Keywords
activity index, geothermal database, geothermal energy, geothermal exploration, geothermal mapping, geothermometry, volcanic front
Suggested Citation
Suzuki Y, Ioka S, Muraoka H. Comparative Study of the Subsurface Thermal Structure in Northern Honshu, Japan, Based on Normalized Temperature Data and Solute Geothermometers. (2018). LAPSE:2018.1077
Author Affiliations
Suzuki Y: Graduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
Ioka S: North Japan Research Institute for Sustainable Energy, Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan
Muraoka H: North Japan Research Institute for Sustainable Energy, Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan
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Journal Name
Energies
Volume
9
Issue
5
Article Number
E382
Year
2016
Publication Date
2016-05-19
Published Version
ISSN
1996-1073
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PII: en9050382, Publication Type: Journal Article
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LAPSE:2018.1077
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doi:10.3390/en9050382
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Nov 27, 2018
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Calvin Tsay
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