The Biobío-Aluminé Fault Zone is a northwest-trending geological fault zone in south-central Chile and

Argentina Argentina, officially the Argentine Republic, is a country in the southern half of South America. It covers an area of , making it the List of South American countries by area, second-largest country in South America after Brazil, the fourt ...

. 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 The Liquiñe-Ofqui Fault is major geological fault that runs a length of roughly in a NNE-SSW orientation and exhibits current seismicity. It is located in the Chilean Northern Patagonian Andes. It is a dextral intra-arc strike-slip fault. Mos ...

intersect and displace the Biobío-Aluminé Fault Zone.

References

Strike-slip faults Geology of Biobío Region Geology of Araucanía Region Geology of Neuquén Province {{struct-geology-stub