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The Magallanes–Fagnano Fault (Spanish: Falla Fagnano–Magallanes) is a continental transform fault. The fault marks a transform boundary between the Scotia plate and the South American plate, cutting across continental crust. It runs under the Strait of Magellan's western arm, Almirantazgo Sound and Fagnano Lake.

It has been suggested that the Magallanes-Fagnano Fault is a reactivated suture of pre-Jurassic age separating the basement of two terranes.

References

1. Lodolo, Emanuele; Menichetti, Marco; Bartole, Roberto; Ben-Avraham, Zvi; Tassone, Alejandro; Lippai, Horacio (2003). "Magallanes-Fagnano continental transform fault (Tierra del Fuego, southernmost South America)". Tectonics. 22 (6): 1076. Bibcode:2003Tecto..22.1076L. doi:10.1029/2003TC001500.
2. ^ 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. Bibcode:2010JGSoc.167..555H. doi:10.1144/0016-76492009-124.

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Terranes	Arequipa-Antofalla Chaitenia Chilenia Chiloé Cuyania Fitz Roy Madre de Dios Mejillonia Patagonia
Sedimentary formations and groups	Cenozoic Neogene Abanico Fm. Angostura Fm. Ayacara Fm. Bahía Inglesa Fm. Caldera Beds Caleta Godoy Fm. Caleta Herradura Fm. Campanario Fm. Chaicayán Gp. Cheuquemó Fm. Cholchol Fm. Chucal Fm. Cola de Zorro Fm. Coquimbo Fm. Cura-Mallín Gp. Farellones Fm. La Cascada Fm. Lacui Fm. La Montaña Fm. La Portada Fm. Lauca Fm. Malleco Fm. Mininco Fm. Navidad Fm. Oxaya Fm. Parga Fm. Puduhuapi Fm. Pupunahue Beds Quebrada Macusa Fm. Ranquil Fm. Río Frías Fm. San Pedro Beds Santo Domingo Fm. Temuco Fm. Traiguén Fm. Trapa-Trapa Fm. Tubul Fm. Vargas Fm. Paleogene Abanico Fm. Azapa Fm. Caleta Chonos Fm. Cheuquemó Fm. Cura-Mallín Gp. La Cascada Fm. Lebu Gp. Loreto Fm. Lupica Fm. Oxaya Fm. Parga Fm. Purilactis Gp. Pupunahue Beds Temuco Fm. Vargas Fm. Mesozoic Cretaceous Baños del Flaco Fm. Cerro Colorado Fm. Chacarilla Fm. Chañarcillo Gp. Coihaique Gp. Divisadero Gp. Dorotea Fm. Hornitos Fm. La Liga Fm. Ñirehuao Fm. Punta del Cobre Fm. Purilactis Gp. Quiriquina Fm. Viñita Fm. Way Gp. Zapata Fm. Jurassic Chacarilla Fm. Coihaique Gp. Ibáñez Fm. La Liga Fm. La Negra Fm. Nacientes del Biobío Fm. Nacientes del Teno Fm. Pan de Azúcar Fm. Tobífera Fm. Triassic Canto del Agua Fm. Choiyoi Gp. Panguipulli Fm. Santa Juana Fm. Tralcán Fm. Paleozoic Llano de Chocolate Beds
Batholiths	Coastal central Chile Elqui-Limarí Futrono-Riñihue North Patagonian Panguipulli South Patagonian Vicuña Mackenna
Metamorphic complexes	Bahía Mansa Belén Chañaral Choapa Chonos Cordillera Darwin Eastern Andes Mejillones Puerto Edén Punta de Choros Quebrada del Carrizo Trafún Tierra del Fuego
Faults	Atacama Fault Biobío-Aluminé Fault Cachet Fault Domeyko Fault El Arrayán Fault Futrono Fault Gastre Fault Lanalhue Fault Liquiñe-Ofqui Fault Magallanes-Fagnano Fault Mocha-Villarrica Fault Pichilemu Fault Reigolil-Pirihueico Fault San Ramón Fault Valeriano Fault
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