Mise en évidence par la luminescence des feldspaths de deux hauts niveaux marins interglaciaires du Pléistocène moyen (MIS 7 et MIS 9) le long de la côte orientale de la Tunisie (Sahel)

Abstract

Mise en évidence par la luminescence des feldspaths de deux hauts niveaux marins interglaciaires du Pléistocène moyen (MIS 7 et MIS 9) le long de la côte orientale de la Tunisie (Sahel)Feldspar luminescence evidence for two middle Pleistocene interglacial sea-level highstands (MIS 7 and MIS 9)

Integrated Geophysical Characterization of the Active Sidi–Thabet Fault (Northeastern Tunisia): Implications for Active Tectonics and Seismotectonics

“…The Tunis region experiences active NE-SW left-lateral faulting and east-west rightlateral faulting with reverse components. These faulting patterns constitute the main tectonic framework in the area (Mejri, 2012;Bouaziz, 2016). In the Ariana locality near Tunis, recent deformation has been observed associated with the major active NW-SE Jebel Nahli fault.…”

Facies and fauna proxies used to reconstruct the MIS 5 and MIS 7 coastal environments in eastern Tunisia

“…How ever, Mauz et al (2009) defined it as the lower mem ber of the Khnis unit and at trib uted it to MIS 5e. Later, Mejri et al (2012) dated this level at two lo cal i ties in the Sahel (El Hajeb and Hergla) by IRSL and at trib uted it to MIS 7 in El Hageb whereas no chro no log i cal data have been ob tained for the Khnis lo cal ity.…”

“…Based on U/Th dat ing, Miller et al (1986) cor related the ma rine quartz-rich Douira For ma tion with MIS 7. New IRSL anal y sis of the Douira For ma tion, in the Cap Bon Pen insula, sup port the manty pre vi ous works (Miller et al, 1986;Mauz et al, 2009;Mejri et al, 2012;Balescu et al, 2015).…”

“…Pleis to cene de pos its of the east ern coast of Tu ni sia cor re lative to ma rine iso tope stage (MIS) 5, MIS 7 and MIS 9 have been the sub ject of sev eral stud ies (Allemand-Mar tin, 1923, 1924Castany, 1954Castany, , 1955Castany, , 1956Barrot, 1972;Paskoff and Sanlaville, 1976, 1978, 1983Oueslati, 1980;Oueslati et al, 1982;Blanc, 1982;Bernat et al, 1985;Miller et al, 1986;Mahmoudi, 1986Mahmoudi, , 1988Oueslati, 1994;Jedoui, 2000;Jedoui et al, 2001Jedoui et al, , 2002Jedoui et al, , 2003Bouaziz et al, 2003;Le Guern, 2005;Chakroun et al, 2005Chakroun et al, , 2009aChakroun et al, , b, 2016Chakroun, 2006;Mauz et al, 2009;Mejri et al, 2012). This suc ces sion, con tain ing a ma rine fauna, has been doc u mented as transgressive.…”

“…Based on U/Th dat ing, Miller et al (1986) cor related the ma rine quartz-rich Douira For ma tion with MIS 7. New IRSL anal y sis of the Douira For ma tion, in the Cap Bon Pen insula, sup port the manty pre vi ous works (Miller et al, 1986;Mauz et al, 2009;Mejri et al, 2012;Balescu et al, 2015).At the Khnis lo cal ity, the Khnis unit has an age of 121 ± 10 Ky (Mauz et al, 2009 (a) -ad di tional data from (Mahmoudi, 1986); * -spe cies iden ti fied from field sur vey of the quartz-rich unit: * -com mon; ** -very com mon; *** -abun dant; NI -num ber of in di vid u als (for bi valve taxa, this is the valve with higher fre quency) …”