Temuco Formation

Temuco Formation
Stratigraphic range: Eocene–Miocene
Type	Geological formation
Overlies	Bahía Mansa Metamorphic Complex
Thickness	1,400 m (4,600 ft)
Lithology
Primary	Sandstone, siltstone, claystone, andesitic tuff
Other	Coal, breccia, conglomerate
Location
Region	Araucanía Region
Country	Chile
Type section
Named for	Temuco

Temuco Formation a sedimentary formation near the city of Temuco in southern Chile. The formation crops out in the western part of Labranza Basin at the footfills of the Chilean Coast Range. It overlies the Bahía Mansa Metamorphic Complex and underlies sediments of Holocene age. The formation is thought to represent ancient river systems of low and intermediated energy near an area of volcanism around cerro Ñielol.^[1]

References

^ Mella, M.; Quiroz, D. 2010. Geología del Área Temuco-Nueva Imperial, Región de La Araucanía. Servicio Nacional de Geología y Minería, Carta Geológica de Chile, Serie Geología Básica 122:46 p., 1 mapa escala 1:100.000.

Geology of Chile

Terranes

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.