The objective of the paleomagnetic testing is to determine directions of the ancient geomagnetic fields recorded in rocks and to track their changes with time. Present-day magnetization of rocks results from combination of magnetic vectors of different ages that can be identified by demagnetization, using the variable magnetic field or altering the temperature. Valuable information can be provided not only by primary but also secondary components of magnetization. Paleomagnetism is one of the geophysical specialties that are very closely related to geology, and its numerous applications are used in stratigraphy, tectonics, and paleoenvironmental studies (especially magnetic susceptibility studies).
OFFER
- Paleogeographic reconstructions of the position of continents and smaller tectonic units in various Phanerozoic epochs
- Magnetostratigraphic schemes and correlations (based on changes in polarity) of rock units devoid of index fossils
- Reconstruction of paleoenvironmental conditions (mainly paleoclimatic) based on variability of selected petromagnetic parameters
- Dating of diagenetic events based on secondary magnetization components
- Determination of the orientation of drill cores, based on the viscous remanent magnetization (VRM)
- Determination of magnetic susceptibility and remanent magnetization of rocks to interpret magnetic maps
- Assessment of anisotropy of magnetic properties of rocks and its tectonic interpretation
The following investigations can be undertaken in our paleomagnetic laboratory:
- assessment of residual magnetization directions and intensities, which are present in all types of rocks
- measurements of magnetic susceptibility and its directional properties (anisotropy of magnetic susceptibility – AMS),
- determination of magnetic properties of rocks: identification of mineral carriers and magnetic susceptibility carriers.