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• W2039884476 endingPage "144" @default.
• W2039884476 startingPage "130" @default.
• W2039884476 abstract "The Gran Paradiso massif, situated in the internal part of the Western Italian Alps, records a complex tectono-metamorphic history involving high-pressure metamorphism and subsequent exhumation during retrograde metamorphism. The exact timing of deformation and, consequently, the geodynamic evolution of this part of the Western Alps is still debated and is addressed here by the application of Rb/Sr geochronology, 40Ar/39Ar step heating and 40Ar/39Ar total fusion dating techniques. Geochronological results are presented from shear zone samples in the core of the Gran Paradiso massif (Piantonetto Valley), and in the area closer to the contact with the overlying Piedmont ophiolitic domain (south and southwest of Pont Valsavarenche). The shear zones operated during crustal thinning and exhumation of the Gran Paradiso massif. 40Ar/39Ar step heating results from shear zones in the Piantonetto Valley show acceptable plateau ages that are interpreted to represent two events of mica growth. Similar ages, and an additional younger age cluster, are recognised in the 40Ar/39Ar total fusion analyses, indicating that specific cleavage domains operated at 39.2 ± 0.2, 36.5 ± 0.6 and 33.3 ± 0.4 Ma. P–T pseudosections show a progressive decrease in metamorphic conditions during deformation, suggesting that the age of incipient exhumation and the related deformation in the Piantonetto Valley is equal to or older than 39.2 ± 0.2 Ma. In the Pont area, the last increments of deformation in a top-to-W shear zone postdate 36.6 ± 0.6 Ma (Rb/Sr mineral data), whereas the present-day top-to-W contact of the Gran Paradiso massif with the overlying Piedmont domain is dated at 41.2 ± 1.1 Ma (Rb/Sr multi-mineral isochron age). We propose a model that considers exhumation of the Gran Paradiso nappe at 41–34 Ma. During this period, the nappe was coupled with the Zermatt-Saas zone, forming an extruding wedge. The kinematics associated with this wedge involved top-to-W shearing within the Gran Paradiso nappe (e.g. Pont area shear zones) and top-to-E shearing at the top of the extruding wedge (e.g. Orco shear zone). Subsequent deformation (after ~ 34 Ma) was characterised by coaxial strain involving orogenic-scale backfolding and backthrusting." @default.
• W2039884476 created "2016-06-24" @default.
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• W2039884476 date "2012-07-01" @default.
• W2039884476 modified "2023-09-27" @default.
• W2039884476 title "Dating deformation in the Gran Paradiso Massif (NW Italian Alps): Implications for the exhumation of high-pressure rocks in a collisional belt" @default.
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• W2039884476 cites W1882234879 @default.
• W2039884476 cites W1909913503 @default.
• W2039884476 cites W1953918274 @default.
• W2039884476 cites W1965458064 @default.
• W2039884476 cites W1969204083 @default.
• W2039884476 cites W1974782209 @default.
• W2039884476 cites W1976811357 @default.
• W2039884476 cites W1977184315 @default.
• W2039884476 cites W1977902080 @default.
• W2039884476 cites W1982103310 @default.
• W2039884476 cites W1986372470 @default.
• W2039884476 cites W1988511054 @default.
• W2039884476 cites W1990598956 @default.
• W2039884476 cites W1992933809 @default.
• W2039884476 cites W1998943362 @default.
• W2039884476 cites W1999807111 @default.
• W2039884476 cites W2002465384 @default.
• W2039884476 cites W2003030071 @default.
• W2039884476 cites W2007307178 @default.
• W2039884476 cites W2008048378 @default.
• W2039884476 cites W2008752548 @default.
• W2039884476 cites W2012557417 @default.
• W2039884476 cites W2019572890 @default.
• W2039884476 cites W2021778941 @default.
• W2039884476 cites W2027747608 @default.
• W2039884476 cites W2027914893 @default.
• W2039884476 cites W2028447650 @default.
• W2039884476 cites W2028573058 @default.
• W2039884476 cites W2032217295 @default.
• W2039884476 cites W2038325228 @default.
• W2039884476 cites W2044219742 @default.
• W2039884476 cites W2044719427 @default.
• W2039884476 cites W2047230097 @default.
• W2039884476 cites W2052226887 @default.
• W2039884476 cites W2052663957 @default.
• W2039884476 cites W2061401188 @default.
• W2039884476 cites W2063091092 @default.
• W2039884476 cites W2066688058 @default.
• W2039884476 cites W2074747193 @default.
• W2039884476 cites W2077192134 @default.
• W2039884476 cites W2077437893 @default.
• W2039884476 cites W2077620316 @default.
• W2039884476 cites W2083934992 @default.
• W2039884476 cites W2096132197 @default.
• W2039884476 cites W2107103777 @default.
• W2039884476 cites W2113822625 @default.
• W2039884476 cites W2115177642 @default.
• W2039884476 cites W2117193981 @default.
• W2039884476 cites W2119151436 @default.
• W2039884476 cites W2119860076 @default.
• W2039884476 cites W2126726440 @default.
• W2039884476 cites W2132593853 @default.
• W2039884476 cites W2135124879 @default.
• W2039884476 cites W2145604970 @default.
• W2039884476 cites W2150281822 @default.
• W2039884476 cites W2152808027 @default.
• W2039884476 cites W2152832284 @default.
• W2039884476 cites W2159855488 @default.
• W2039884476 cites W2163081387 @default.
• W2039884476 cites W2165847476 @default.
• W2039884476 cites W2166150635 @default.
• W2039884476 cites W2338014463 @default.
• W2039884476 cites W2606892490 @default.
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• W2039884476 doi "https://doi.org/10.1016/j.lithos.2012.04.016" @default.
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