Combination of these track length measurements and age determination of a mineral sample will therefore yield information on its thermal history. On the efficiency of fission-track counts in an internal and external apatite surface and in a muscovite external detector. Derbyshire, M., Ingelbrecht, C., De Corte, F., Van den haute, P. For fission tracks in apatite this process is well understood and quantified.
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can be easily derived and all conditions are met to calculate the age of the sample. Journal of Geophysical Research,102, B8, 18221-18232.
Several geological materials are dated with this method, in particular the minerals apatite, zircon and sphene and natural glasses (obsidian, pitchstone).
Fission track research at our laboratory started in 1983 with a study by P. Since his return to the university, fission track research (in co-operation with Prof.
Van den haute on the track etching characteristics of fission tracks in glass and on the application of apatite fission track dating to the Precambrian basement rocks underlying the East-African rift shoulders in Rwanda and Burundi. Wagner) has been continued on a constant basis and Ph Ds both in the areas of methodology and geological applications have been produced.
Computer models have been developed to reconstruct thermal histories from observed apatite FT data. Selected articles (period 1997-2002) De Grave, J., Van den haute, P. Denudation and cooling of the Lake Teletskoye region in the Altai Mountains (South Siberia) as revealed by apatite fission-track thermochronology.
For a given time and temperature they will partially or even totally disappear (track fading, track annealing) due to restoration of the crystal lattice. It yields the time when the mineral cooled down to a temperature at which the FTs became stable.
Thermal annealing is reflected by a shortening of the track length. Preparation of two uranium glass reference materials for fission-track dating of geological samples. De Corte, F., Bellemans, F., Van den haute P., Ingelbrecht C., Nicholl C. A new U doped glass certified by the European commission for the calibration of fission-track dating.
Frans De Corte at the Institute of Nuclear Sciences.
This co-operation resulted in the develoment of a procedure of thermal neutron-fluence determination that has internationally been accepted as a reference procedure. A., Duyster, J., Hentjes-Kunst, F., Peterek, A., Schrder, B., Stkhert, B., Wemmer, K., Zulauf, G., Ahrendt, H., Bishoff, R., Hejl, E., Jacobs, J., Menzel, D., Lal, N., Van den haute, P., Vercoutere, C., Welzel B. Post-Variscan thermal and tectonic evolution of the KTB site and its surroundings.