Jj. Delvolve et al., Stratigraphic record of thrust propagation, Carboniferous foreland basin, Pyrenees, with emphasis on Pays-de-Sault (France/Spain), GEOL RUNDSC, 87(3), 1998, pp. 363-372
The Carboniferous culm of the Pays-de-Sault is divided into two diachronous
and synshortening series. These series are dated Late Visean (Pic d'Ourtis
et series in a northern overthrust unit) and Early Namurian E2 (La Fajolle
series in a southern underthrust unit) from an association of foraminifers,
algae, and microproblematica identified in clasts of conglomerates. Accord
ing to structural positions and facies criteria, these two series are inter
preted as two turbiditic depocenters which were generated by southward thru
st propagation during Late Visean and Early Namurian. At the scale of the P
yrenean Hercynian range, this evolution is consistent with a thrust and dep
ocenter sequence propagating on the wedge-top depozone of a foreland basin
system from the northeast (Mouthoumet subpyrenean massif) to the southwest
(end of the High Primary Range) during Late Visean to Westphalian C time in
terval.