Estimation of Subsuface Temperatures Using Fluid Inclusions and Vitrinite Reflectances in the Akan Geothermal Area, Hokkaido, Japan
- Location
- Akan, Japan
- Conference
- New Zealand Geothermal Workshop
- Year
- 1996
- Session
- Geology
- Language
- English
Full text
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Abstract
Five hundred microthermometric measurements were made on fluid inclusions and approximately 700 measurements of vitrinite reflectance (Ro) were performed on core samples taken from wells in the Akan geothermal area, Hokkaido, Japan. The homogenization temperatures (Th) in samples from below 1,000 m in the well AK-7 are in close agreement with the present subsurface temperatures (up to 292'C). An abrupt increase of the Ro ratio with depth occurs in AK-7 and is attributed to the present thermal regime.
Copyright 1996, University of Auckland. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.