Sediments in Gulf of Gabes and Sahara Desert Features, Tunisia33.6N 8.3E
Greenish sediments can be seen in the Gulf of Gabes off the coast of Tunisia between the Kerkennah Islands and Djerba. The former (north) is an archipelago with an area of 160 km2, while the latter (south) is the largest island of North Africa, with a surface area of 514 km².
Visible to the west of the gulf, further inland, is a large tan area, known as the Chott el Djerid. It is a large, endorheic salt lake in southern Tunisia and the largest salt pan of the Sahara Desert. The golden area of desert south of the Chott el Djerid is the Grand Erg Oriental, a sand dune sea stretching across Algeria to Tunisia.