Table 1 Geochronological data from gabbros and granites emplaced in the Sesia–Dent Blanche nappes

Sesia Zone

Orthogneiss (Tavagnasco, Montestrutto)

U/Pb

435 ± 8

Liermann et al. (2002)

396 ± 21

Gabbro (Cima di Bonze)

U/Pb

352 ± 8

Rubatto et al. (1999)

Gabbro (Ivozio)

U/Pb

355 ± 9

Rubatto et al. (1998)

Granite (Monte Mucrone)

U/Pb

286 ± 2

Paquette et al. 1989

293 ± 2

Bussy et al. (1998)

297 ± 18

Rubatto et al. (1999)

Th/Pb

287 ± 7

Cenki-Tok et al. (2011)

Gabbro (Sermenza)

U/Pb

288 ± 4

Bussy et al. (1998)

Dent Blanche s.s.

Gabbro (Matterhorn Collon)

K/Ar Rb/Sr

250 ± 5

Dal Piaz et al. (1977)

U/Pb

284 ± 1

Monjoie et al. (2007)

Mafic dikes (Mont Collon Dents de Bertol)

Ar/Ar

~260

Monjoie et al. (2007)