La faja cataclástica del borde oriental del Sistema de FamatIna, ArgentIna
DOI:
https://doi.org/10.3989/egeol.92485-6399Keywords:
Famatina Range, Sierras Pampeanas, Lower Paleozoic, Cataclastic rocks, Granitoids, GeotectonicAbstract
The cataclastic rocks autcrops are located at the northwestern Pampean Ranges and have a N-S direction. They are limiting the Famatina system to the eastern and carne along the Puna.
They have been recognized protomylonites, mylonite gneiss and mylonite schists which may be formed under 10 or 15 km of deep and 275-350° C temperatures of source.
The main dominant structure have NNW direction and dips to the eastern. There can be seen compressive movements related to western blocks displacements.
During de Ocloyica distrophic phase (Upper Ordovician-Lower Silurian) may be formed these cataclastic rocks, related to the Antofalla Craton collision.
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