Observaciones preliminares de fallamiento Cuaternario inverso a lo largo del piedemonte sur del Northern Range de Trinidad

Authors

  • C. BELTRÁN FUNVISIS

Keywords:

geología regional y tectónica, fallamiento inverso cuaternario, reverse faulting,

Abstract

Diversas evidencias foto-geomorfológicas de fallamiento inverso cuaternario se observan a lo largo del piedemonte sur del Northern Range de Trinidad, entre Port-of-Spain y Matura Bay. Tal frente de montaña está asociado a un sistema de fallas inversas, que muestra una disposición imbricada hacia el Sur y corresponde a la expresión superficial de un accidente mayor de tipo transcurrente que correspondería al límite sur de la zona de transpresión del Northern Range. Se considera que este sistema no se encuentra conectado actualmente con el sistema transcurrente dextral de San Sebastián-El Pilar.

Abstract

Several photo-geomorphological evidences of Quaternary reverse faulting have been observed along the southern front of the Northern Range in Trinidad between Port-of-Spain and the Matura Bay. Such a mountain front shows an imbricated pattern of reverse faulting towards the south. It is postulate that a such reverse fault system correspond to the surface expression of a mayor strike-slip feature which is interpreted as the southern border of the transpression zone of the Northern Range. Is is considered that al these reverse faults are not connected to the right-lateral slip system of San Sebastian-El Pilar.


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