1998
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F. Bussy et al., « U-Pb ages of magmatic rocks of the western Austroalpine Dent-Blanche-Sesia unit », Serveur académique Lausannois, ID : 10.5169/seals-59281
Conventional U-Pb ages on zircon and monazite demonstrate that granites and gabbros intruded during a short time span of 5 Ma between 293 and 288 Ma in several polycyclic basement units of the Western Austroalpine domain. This bimodal activity reflects increasing underplating of an upwelling mantle at the base of a thinning post-Variscan continental crust.