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
^ a b c 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 .
^ a b 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.
Terranes Sedimentary formations and groups
Batholiths Metamorphic complexes Faults