Abstract

At the northern edge of the Saharan platform, the late Permian marine sequence and the detrital formation of the early-middle Triassic form a palaeogeographic high from Middle Carnian to Vraconian. From late Carnian to Aptian, marine transgressions alternated with detrital episodes associated with major unconformity outlining regional tectonic events. A detailed analysis of fault-slip data sets and joint sets allow us to propose the following succession of tectonic events in southern Tunisia: (1) a NE-SW trending late Permian extension, (2) a 160 late to middle Triassic extension, (3) a NNW-SSE trending Middle Carnian compression, and (4) a major N-S extensional event ranging in age from late Norian to Aptian. These events, mainly extensional are related to the rifting that originated the opening of the Tethyan ocean.

First Page Preview

First page PDF preview
You do not currently have access to this article.