Cola de Zorro Formation, Geological formation in Araucanía Region, Chile
Cola de Zorro Formation is a geological structure in the Araucanía Region made of volcanic and sedimentary rock layers. These layers show different volcanic rock compositions arranged in the mountain landscape.
The formation developed over millions of years from the Pliocene through Early Pleistocene times. Scientists first documented and described the structure in the 1990s.
The formation serves as a key research site for geologists studying Andean development. Visitors can observe the layered rocks that record how this mountain range grew and changed over millions of years.
Access to the formation is possible from several points along the Argentina-Chile border area. Rock samples found here display clear volcanic patterns that are easy to recognize without special tools.
In the Pino Hachado and Pichachén areas, the formation displays different types of volcanic rocks with varying chemical characteristics depending on the location. This variety makes the site particularly interesting for understanding different volcanic processes.
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