Geophysical applications
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Head of Research Programme:
Research Professor Kukkonen, Ilmo T.
The research programme of geophysical applications develops and applies geophysical
measurement and integrated data interpretation methods for assessment of the geological resource
base, infrastructure construction and environmental monitoring.
Programme goals:
- Development of new physical measurement methods (software and hardware) for ore exploration, bedrock structure studies, surveying of soft grounds of silt and clay and underlying bedrock structures for construction planning, and evaluation of potential underground sites for nuclear waste disposal.
- Use of seismic reflection data in modelling areas of ore potential in Finland
- Developing methods for integrated interpretation of Finland’s national aerogeophysical survey data, as well as development of new applications of airborne geophysical measurements in environmental monitoring
- Creating a background database comprising soil and bedrock temperatures and thermal conductivity for geoenergy applications
The research results will be at the use of industry, energy producers, municipal planners,
environmental administrators, sectoral research institutes and universities.
Major partners in the programme include mining and ore exploration companies operating in
Finland, Posiva Oy, the Universities of Helsinki, Oulu and Lapland, the University of Alberta,
Uppsala University, the Geological Survey of Canada, international scientific organizations
included EAGE, IAGA, IUGG and ICDP.
The following is a summary of project development objectives:
Methods and equipment
- Airborne gravity
- Airborne TEM
- Ground-based TEM
- GTK-REISKA system for borehole EM measurement
- Down-hole EM radioprobe
- TERO downhole tools for determining thermal conductivity and heat capacity of bedrock at nuclear waste repository sites
Integrated data interpretation
- Improved statistical interpretation of aerogeophysical data
- Modelling and inversion of airborne electromagnetic (AEM) data
- Map products on soft grounds of silt and clay
- Application of remanent magnetism to environmental and geological resource studies
Seismic reflection
- Utilization of seismic reflection studies in modelling areas with ore potential: High Resolution Seismic Reflection Survey in Ore Exploration of Crystalline Rock Areas (HIRE Project)
Studies related to geoenergy and bedrock temperature
- Database of soil and bedrock temperatures and thermal conductivity
- Temperature studies of sediment layers in water bodies
- New techniques in temperature and thermal conductivity measurements
- Thermal conditions of glaciers and permafrost
Geomaterials research
- Non-damaging 3D research methods of rocks
- Implementation of drill core scanners
Geophysical studies of climate change
- Airborne monitoring of permafrost areas
- Modelling and monitoring of glacial and permafrost conditions
International networking in geophysics
- Outokumpu Deep Drilling Project
- World Digital Magnetic Anomaly Map (WDMAM)