INVESTIGADORES
LAJOINIE Maria Florencia
congresos y reuniones científicas
Título:
Formación El Cortijo: Una secuencia tipo OPS (Ocean Plate Stratigraphy) en el basamento paleoproterozoico del Sistema de Tandilia
Autor/es:
LAJOINIE, MARÍA F.; DE LA CAL, H.G.; ETCHEVERRY, R.O.; SALVIOLI, M.A.; BENITEZ MANUELA; LANFRANCHINI, M.E.
Lugar:
Córdoba
Reunión:
Congreso; 13° Congreso de Mineralogía, Petrología Ígnea y Metamórfica y Metalogenia; 2019
Institución organizadora:
AGA y AMA
Resumen:
?El Cortijo Formation: an OPS (ocean plate stratigraphy) type sequence in the Palaeoproterozoic basement of the Tandilia System?. El Cortijo Formation is exposed near the Tandil city, within an isoclinal fold and vertical fault system, with an E-W general orientation. It is constituted by an intercalation of low metamorphic grade metabasites, metacherts and metawackes. Structural, petrological and geochemical characteristics of the aforementioned rocks could be interpretated as an OPS (ocean plate stratigraphy) type sequence. This new interpretation of El Cortijo Formation genesis provides reliable evidences to the collisional theory of Tandilia System basement evolution.
