Tierra del Fuego Igneous and Metamorphic Complex

Tierra Igneous and Metamorphic Complex
Tierra Igneous and Metamorphic Complex
Stratigraphic range: Cambrian
Type	Complex
Underlies	Tobífera Formation
Lithology
Primary	Orthogneiss
Location
Coordinates	54°30′S67°10′W / 54.5°S 67.16°W
Region	Magallanes Region ; Tierra del Fuego Province
Country	Chile, Argentina
Type section
Named for	Tierra del Fuego
	Tierra del Fuego Igneous and Metamorphic Complex (Chile)

Last updated May 24, 2025

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]

References

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. S2CID 129413187.
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.

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[Detrital-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. S2CID 129413187.

[Basementcomplex-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.

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