Analytical description:
The analytical setting is composed by a Leica DMLM microscope connected to an automated Kinetek stage and a digitilazing tablet. Data are acquired using the FT stage 4.1 software.
Spontaneous track density is measured semi-automatically in the apatite grains and in the muscovite external detectors. Horizontal confined track lengths together with Dpar are measured using a drawing tube with a analytical precision of 0.1 µm.
Samples are irradiated in the Garching facility (Germany) to measured in situ U content.
Principle of the method:
Apatite fission-track thermochronolgoy is used to determine the thermal path of upper crustal rocks in the 60-110°C range. Temperature is usually converted in thickness and age, duration, and rate of erosion may be characterized and integrated in the geodynamical context.
Users may read the following references for more details on the method:
- Gallagher, K., Brown, R.W. and Johnson, C., 1998. Fission track analysis and its applications to geological problems, Annu. Rev. Earth Planet. Sci., 26(5), pp.9-72, doi: 10.1146/annurev.earth.26.1.519.
- Donelick R.A., P. B. O'Sullivan, and R. A. Ketcham (2005) Apatite fission-track analysis. Reviews in Mineralogy & Geochemistry Vol. 58, p. 49 - 94
Routine analyses carried out in the laboratory:
Data are available only for apatite crystals.
Contacts:
Jocelyn BARBARAND – 01.69.15.67.88 - This email address is being protected from spambots. You need JavaScript enabled to view it.
Claire BOUKARI – 01.69.15.67.88 – This email address is being protected from spambots. You need JavaScript enabled to view it.