A. Pique et al., THE WESTERN MOROCCO CAMBRIAN RIFTING, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 320(10), 1995, pp. 1017-1024
In western Morocco, the Early Paleozoic sedimentary sequences, contemp
oraneous with a magmatic and hydrothermal activity, were deposited wit
hin a rift. The tectonic subsidence ceased diachronously, earlier in t
he south (end of the Early Cambrian) than in the north (end of the Mid
Cambrian).