ABSTRACT
Figure 6.1 is a view of the hillsides of the Jbel Taïssa looking towards the Aït Mhand. Behind us the Taïssa is crowned with a crest of red-colored Jurassic limestone; further up lies the piedmont of the Dir. Before us is a succession of increasingly older geologic layers. We are here at the level of the whitish shale of the Lias. Then come the Permian-Triassic layers of sandstone with the purplish red rock called tafzza. Beyond that you have the black mass of the Cambrian and Ordovician schist that shapes most of Seksawa country, with lighter granite intrusions, but those are hidden by snow. In the background, the crest line reaches 3000 meters, and it is January.
