Discussion on the differentiation of tectonic units in the Alpujarride Complex (Betic Cordillera)

The Alpujarride Complex, situated in middle position in the tectonic complexes of the Betic-Rif Internal Zone, is divided into many units distributed in three superposed groups. Nevertheless, the significance and even the existence of some of these units, is still under discussion. In this sense, the present article attempts to clarify some of these aspects, which are essential for an understanding of this Internal Zone. Among others, the following points are examined: a) the existence of transitional units between the Malaguide and Alpujarride complexes; b) the position of the Ronda peridotites under the Alpujarride and not thrusting it; c) the large shears and bevels that many tectonic units present, to the point of disappearing in some cases; d) the progressive lower metamorphic grade of its units towards the NE; and e) the overlap between the different groups of Alpujarride units, a process that is probably not complete.The discussion of these and other aspects provides a more complete vision of the structure and meaning of the complex.

Automated summary

This article examines several key issues regarding the Alpujarride Complex, such as the existence of transitional units between the Malaguide and Alpujarride complexes, the position of the Ronda peridotites, the large shears and bevels present in many tectonic units, the progressive lower metamorphic grade towards the NE, and the overlap between different groups of Alpujarride units.