Biobío-Aluminé Fault Zone

The Biobío-Aluminé Fault Zone is a northwest-trending geological fault zone in south-central Chile and Argentina. The fault aligns with the middle-upper course of Bío Bío River where fault traces are largely covered with fluvial gravels. The northernmost reaches of the north-south Liquiñe-Ofqui Fault intersect and displace the Biobío-Aluminé Fault Zone.[1]

References

Pérez-Flores, Pamela; Cembrano, José; Sánchez-Alfaro, Pablo; Veloso, Eugenio; Arancibia, Gloria; Roquer, Tomás (2016). "Tectonics, magmatism and paleo-fluid distribution in a strike-slip setting: Insights from the northern termination of the Liquiñe–Ofqui fault System, Chile" (PDF). Tectonophysics. 680: 192–210. Bibcode:2016Tectp.680..192P. doi:10.1016/j.tecto.2016.05.016. Retrieved June 1, 2018.

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.

Llano de Chocolate Beds

Batholiths

Metamorphic
complexes

Faults

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