Field area is situated in Central Alps (mainly in Switzerland, but also in Italy).
The studied zone is situated between Alpe Devero (Goglio, Italy), Nufenen and Lucomagno pathes.
An extension in east-north-east direction (region Vals-Vrin) may be considered in the future...
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Studied rocks are particularly sediments deposited during Triassic and Jurassic (quartzitic,
dolomitic and phyllitic triassic in the same way as black "Schistes Lustrés" [french]
or "Bündnerschiefer" [german]).
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We use geochronological method and determination of rock-forming mineral equilibrium.
This chemical equilibrium is highlighted by estimation of pressure-temperature achieved by the rock during buring
with the help of TWQ program of Berman (1991).
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To date minerals, methods based on natural decay of radioactive elements hold in mineral
network are used. The main method used we will employ (Argon-Argon on micas) is based on decay of potassium in
argon. Other geochronological methods will probably be used (for instance, Uranium => Thorium => Led).
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Some pictures explaining you function of Argon gaz extraction line, used for datation of
potassium-bearing minerals (for example micas and amphiboles).
Don't be affraid to enter, this is not so complicate!
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Results have not been published yet :o| However, a PDF of my Thesis is
available at following addresses:
HIGH quality version (ca. 34 Mo)
LOW quality version (ca. 11 Mo)
You can also check in the download
section to get some abstracts |
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