| Title | Using shallow temperature measurements to evaluate thermal flux anomalies in the southern Mount Meager volcanic area, British Columbia, Canada |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Liu, X ; Chen, Z; Grasby, S E |
| Source | Geological Survey of Canada, Open File 8890, 2022, 19 pages, https://doi.org/10.4095/330009  Open Access |
| Image |  |
| Year | 2022 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | British Columbia |
| NTS | 92J/11; 92J/12 |
| Area | Mount Meager |
| Lat/Long WENS | -123.5500 -123.4500 50.6083 50.5500 |
| Subjects | geophysics; hydrogeology; regional geology; Science and Technology; Nature and Environment; geothermal energy; geothermal resources; geothermal potential; ground temperatures; anomalies; geothermal
gradient; thermal analyses; heat flow; fluid flow; modelling; models; volcanology; volcanoes; magmatism; intrusions; groundwater; field methods; in-field instrumentation; software; computer simulations; bedrock geology; lithology; Garibaldi Volcanic
Belt; Mount Meager Volcanic Complex; Data processing; Methodology; Artificial intelligence; Phanerozoic; Cenozoic; Quaternary; Tertiary |
| Illustrations | location maps; geoscientific sketch maps; time series; flow diagrams; tables; plots; profiles; cross-sections; schematic representations |
| Program | Energy Geoscience Program Coordination |
| Released | 2022 05 12 |
| Abstract | Geothermal is a clean and renewable energy resource. However, locating where elevated thermal gradient anomalies exist is a significant challenge when trying to assess potential resource volumes during
early exploration of a prospective geothermal area. In this study, we deployed 22 temperature probes in the shallow subsurface along the south flank of the Mount Meager volcanic complex, to measure the transient temperature variation from September
2020 to August 2021. In our data analysis, a novel approach was developed to estimate the near-surface thermal distribution, and a workflow and code with python language have been completed for the thermal data pre-processing and analysis. The
long-term temperature variation at different depths can be estimated by modelling, so that the relative difference of deducing deeper geothermal gradient anomalies can be assessed. Our proposed inversion and simulation methods were applied to
calculating the temperature variation at 2.0 meters depth. The results identified a preferred high thermal flux anomalous zone in the south Mount Meager area. By combining with previous studies, the direct analysis and estimation of anomalous thermal
fields based on the collected temperature data can provide a significant reference for interpretation of the regional thermal gradient variation. |
| Summary | (Plain Language Summary, not published)
Geothermal is a clean and renewable energy resource. Locating the thermal gradient anomalies is a significant step as assessing potential resource
volumes during early exploration period. In this study, we deployed 22 temperature probes in the shallow subsurface along the south Mount Meager volcanic area, to measure the temperature variation from September 2020 to August 2021. For data
analysis, an algorithm was developed to calculate the near-surface thermal distribution. The long-term temperature change at different depths can be estimated by modelling, so that the difference of deducing geothermal gradient anomalies can be
assessed. The simulation method was applied to calculating the temperature variation at 2.0 meters depth. The results identified a preferred high thermal anomalous zone in the south Mount Meager area. Comparing with previous studies, the direct
analysis of anomalous thermal fields based on the collected temperature data can provide an important reference for interpretation of the regional thermal resource. |
| GEOSCAN ID | 330009 |
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