Tierra del Fuego Igneous and Metamorphic Complex

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Tierra Igneous and Metamorphic Complex
Stratigraphic range: Cambrian
Type Complex
Underlies Tobífera Formation
Lithology
Primary Orthogneiss
Location
Region Magallanes Region
Country Chile, Argentina
Type section
Named for Tierra del Fuego

Tierra del Fuego Igneous and Metamorphic Complex is a geological basement complex known from boreholes in northern Tierra del Fuego. [1] [2] The complex is made up of foliated igneous rocks of Cambrian age including orthogneiss. [1] [2] It underlies unconformably the Jurassic Tobífera Formation. The protoliths of Cordillera Darwin Metamorphic Complex are unrelated to Tierra del Fuego Igneous and Metamorphic Complex despite present-day proximity. [1]

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References

  1. 1 2 3 Hervé, F.; Fanning, C.M.; Pankhurst, R.J.; Mpodozis, C.; Klepeis, K.; Calderón, M.; Thomson, S.N. (2010). "Detrital zircon SHRIMP U–Pb age study of the Cordillera Darwin Metamorphic Complex of Tierra del Fuego: sedimentary sources and implications for the evolution of the Pacific margin of Gondwana" (PDF). Journal of the Geological Society, London. 167 (3): 555–568. doi:10.1144/0016-76492009-124.
  2. 1 2 Hervé, F.; Faundez, V.; Calderón, M.; Massonne, H.-J.; Willner, A.P. (2007). "Metamorphic and plutonic basement complexes". In Moreno, Teresa; Gibbons, Wes (eds.). The Geology of Chile. Geological Society of London. pp. 7–20.