The Magallanes-Fagnano Fault, a dextral strike slip active seismic fault, located in inside and parallel to the Fuegian fold and thrust belt marks the boundary between a southern belt of Paleozoic metasediments and northern Mesozoic belts sedimentary sequences.
The Magallanes-Fagnano Fault, a dextral strike slip crosses the southern part of the main island from west to east. It is an active seismic fault, located in inside and parallel to the Fuegian fold and thrust belt marks the boundary between a southern belt of Paleozoic metasediments and northern Mesozoic belts sedimentary sequences.