La Liga Formation

La Liga Formation (Chile)

La Liga Formation (Spanish: Formación La Liga) is a geologic formation Late Jurassic and Early Cretaceous age cropping out in Coquimbo Region, Chile.^[1] Rocks of the formation are andesites.^[1] Locally the rocks of the formation present epidote alteration.^[1] The iron ores of El Romeral mine are emplaced on La Liga Formation.^[1]

References

^ ^a ^b ^c ^d Rojas, Paula A.; Barra, Fernando; Reich, Martin; Deditius, Artur; Simon, Adam; Uribe, Francisco; Romero, Rurik; Rojo, Mario (2018). "A genetic link between magnetite mineralization and diorite intrusion at the El Romeral iron oxide-apatite deposit, northern Chile". Mineralium Deposita. 53: 947–966. doi:10.1007/s00126-017-0777-x.

Geology of Chile

Terranes

Arequipa-Antofalla
Chaitenia
Chilenia
Chiloé
Cuyania
Fitz Roy
Madre de Dios
Mejillonia
Patagonia

Sedimentary
formations
and groups

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.