FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2167029531> ?p ?o ?g. }

• W2167029531 startingPage "2469" @default.
• W2167029531 abstract "The Ubaye-Acceglio transect (south Western Alps) is a unique rock section showing the roughly progressive evolution of metamorphism from low grade, high-pressure greenschist facies to carpholite-quartz (blueschist) facies to low-temperature eclogite facies. The section, corresponding to the Middle Penninic Brianconnais zone, is exposed along the upper Ubaye, Varaita and Maira valleys, and is ca. 10 km thick. Our P‐T estimates indicate that from the petrological point of view the section exposed corresponds to a pressure interval of ca. 0.7 GPa. Depending on rock density this interval is expected to represent a 20 km thick portion of the Alpine orogen. Although an extensional discontinuity was not detected by us along the transect, its thickness is significantly reduced. This feature is particularly intriguing as post-peak metamorphism backthrusting dominates the structure of the section, so that excess thickening is expected. We present a structural and petrologic study of the transect, including for the first time a metamorphic map of mineral occurrences. Along the transect, the Brianconnais zone consists of a number of rock slices (nappes) comprising duplexes that were piled through the operation of decollement in Lower Permian, Upper Scythian and Carnian levels. NW-directed D1 deformation, associated to the duplex piling, occurred during the subduction of the Brianconnais lithosphere. This was followed by an oblique shortening (D2) with longitudinal, reverse sinistral strikeslip faults and coeval NW-trending major folds. Further tightening (D3) carried the external Brianconnais onto the frontal part of the Upper Penninic prism, i.e. the Helminthoid Flysch nappes (Brianconnais Front), and contemporaneously resulted in strong nappe backfolding and backthrusting. Both D2 and D3 occurred in greenschist-facies conditions. Contractional piling was followed by horizontal kink bands that may record late orogenic collapse. At the top (west) of the pile, the external Brianconnais units equilibrated at ca. 0.6 GPa, 300 °C. Carpholitequartz and/or lawsonite-glaucophane assemblages (ca. 1.1 GPa, 350 °C) occurs in the internal Brianconnais-external Ultrabrianconnais units as well as in the Schistes Lustres of the Acceglio D3 syncline. The most internal Ultrabrianconnais units of the Acceglio-Longet stripe and the underlying Schistes Lustres at the base (east) of the section display jadeite-quartz and/or zoisite-jadeite-glaucophane assemblages (ca. 1.3 GPa, 430 °C). The external Brianconnais units, including Middle‐early Late Eocene flysch, reached their maximum depth not before ca. 35 Ma. Assuming 80 km for the restored width of the Brianconnais plateau and a subduction angle of ca. 45°, the most internal Brianconnais units potentially reached >60 km depth then, but petrological and geochronological data indicate that they accreted to the upper plate and equilibrated at ca. 40 km depth at 36‐38 Ma. Exhumation began at the end of D1 within the subduction channel-accretionary edifice, carrying deeply metamorphosed units onto, or closer to less metamorphic ones. Further decompression and cooling during the D2 ‐ D3 shortening phases is interpreted as the result of extension in the upper levels, and erosion on top of the Schistes Lustres wedge during the Oligocene Alpine collision." @default.
• W2167029531 created "2016-06-24" @default.
• W2167029531 creator A5013414738 @default.
• W2167029531 creator A5026781865 @default.
• W2167029531 creator A5061152694 @default.
• W2167029531 date "2003-04-01" @default.
• W2167029531 modified "2023-10-17" @default.
• W2167029531 title "The high-pressure metamorphic front in the south Western Alps (Ubaye-Maira transect, France, Italy)" @default.
• W2167029531 cites W1481146338 @default.
• W2167029531 cites W1580676788 @default.
• W2167029531 cites W1597733412 @default.
• W2167029531 cites W1965458064 @default.
• W2167029531 cites W1970687324 @default.
• W2167029531 cites W1972909865 @default.
• W2167029531 cites W1975991751 @default.
• W2167029531 cites W1991436475 @default.
• W2167029531 cites W1993599845 @default.
• W2167029531 cites W2001068495 @default.
• W2167029531 cites W2001470120 @default.
• W2167029531 cites W2008877113 @default.
• W2167029531 cites W2010269787 @default.
• W2167029531 cites W2013068817 @default.
• W2167029531 cites W2018910271 @default.
• W2167029531 cites W2025253988 @default.
• W2167029531 cites W2026476599 @default.
• W2167029531 cites W2027620484 @default.
• W2167029531 cites W2028237722 @default.
• W2167029531 cites W2029742232 @default.
• W2167029531 cites W2035413994 @default.
• W2167029531 cites W2050408154 @default.
• W2167029531 cites W2054042281 @default.
• W2167029531 cites W2055912303 @default.
• W2167029531 cites W2068603723 @default.
• W2167029531 cites W2073638697 @default.
• W2167029531 cites W2075402055 @default.
• W2167029531 cites W2077620316 @default.
• W2167029531 cites W2078458138 @default.
• W2167029531 cites W2080714023 @default.
• W2167029531 cites W2082196654 @default.
• W2167029531 cites W2083488390 @default.
• W2167029531 cites W2093338585 @default.
• W2167029531 cites W2094276225 @default.
• W2167029531 cites W2094542353 @default.
• W2167029531 cites W2094992325 @default.
• W2167029531 cites W2100618503 @default.
• W2167029531 cites W2155545810 @default.
• W2167029531 cites W2229042715 @default.
• W2167029531 cites W2316391687 @default.
• W2167029531 cites W2316585173 @default.
• W2167029531 cites W2336240470 @default.
• W2167029531 cites W2338014463 @default.
• W2167029531 cites W2732330044 @default.
• W2167029531 cites W2808147249 @default.
• W2167029531 cites W2808238472 @default.
• W2167029531 cites W2808332394 @default.
• W2167029531 cites W2974346296 @default.
• W2167029531 cites W3177615340 @default.
• W2167029531 cites W398090424 @default.
• W2167029531 cites W643567077 @default.
• W2167029531 cites W2464717620 @default.
• W2167029531 cites W2483622639 @default.
• W2167029531 cites W2519890680 @default.
• W2167029531 cites W2525069498 @default.
• W2167029531 cites W2525995279 @default.
• W2167029531 cites W2807963958 @default.
• W2167029531 hasPublicationYear "2003" @default.
• W2167029531 type Work @default.
• W2167029531 sameAs 2167029531 @default.
• W2167029531 citedByCount "5" @default.
• W2167029531 countsByYear W21670295312014 @default.
• W2167029531 crossrefType "journal-article" @default.
• W2167029531 hasAuthorship W2167029531A5013414738 @default.
• W2167029531 hasAuthorship W2167029531A5026781865 @default.
• W2167029531 hasAuthorship W2167029531A5061152694 @default.
• W2167029531 hasConcept C109007969 @default.
• W2167029531 hasConcept C111368507 @default.
• W2167029531 hasConcept C112764850 @default.
• W2167029531 hasConcept C114793014 @default.
• W2167029531 hasConcept C127313418 @default.
• W2167029531 hasConcept C140998209 @default.
• W2167029531 hasConcept C146588470 @default.
• W2167029531 hasConcept C151730666 @default.
• W2167029531 hasConcept C153220577 @default.
• W2167029531 hasConcept C173347748 @default.
• W2167029531 hasConcept C17409809 @default.
• W2167029531 hasConcept C23295444 @default.
• W2167029531 hasConcept C26687426 @default.
• W2167029531 hasConcept C37045145 @default.
• W2167029531 hasConcept C58097730 @default.
• W2167029531 hasConcept C5900021 @default.
• W2167029531 hasConcept C69661492 @default.
• W2167029531 hasConcept C77928131 @default.
• W2167029531 hasConcept C79927612 @default.
• W2167029531 hasConceptScore W2167029531C109007969 @default.
• W2167029531 hasConceptScore W2167029531C111368507 @default.
• W2167029531 hasConceptScore W2167029531C112764850 @default.
• W2167029531 hasConceptScore W2167029531C114793014 @default.
• W2167029531 hasConceptScore W2167029531C127313418 @default.
• W2167029531 hasConceptScore W2167029531C140998209 @default.

• next