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Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)

Author

Listed:
  • Alberto Corno
  • Pietro Mosca
  • Alessandro Borghi
  • Marco Gattiglio

Abstract

The map ‘Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)’ details the lithostratigraphy and structural setting of a key sector in the Alpine chain, characterized by close associations of continental and oceanic basements, and meta-sediments. The mapped Monte Banchetta – Punta Rognosa unit (BRU), tectonically juxtaposed to different metaophiolitic units, comprises the Punta Rognosa succession, made of serpentinized mantle overlain by Middle-Upper? Jurassic polymictic meta-breccia, with oceanic and continental clasts, and metasandstone, and the Monte Banchetta succession, consisting of continental crust and Lower–Upper? Jurassic carbonate-bearing quartzite, micaschist and polymictic meta-breccia. These two successions share the uppermost stratigraphic levels consisting of post-rift Upper Jurassic-Cretaceous carbonate-micaschists. The deciphered stratigraphic architecture indicates that the lower succession of the BRU represents portions of continental crust and exhumed mantle reworked and emplaced before deposition of post-rift sediments.

Suggested Citation

  • Alberto Corno & Pietro Mosca & Alessandro Borghi & Marco Gattiglio, 2021. "Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)," Journal of Maps, Taylor & Francis Journals, vol. 17(2), pages 150-160, December.
    • Handle: RePEc:taf:tjomxx:v:17:y:2021:i:2:p:150-160
    DOI: 10.1080/17445647.2021.1894996
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