Mount Lebanon dominates much of Lebanon, bounded to the north by the Yammouneh Fault (a part of the Levant Fracture System). Gravity modeling suggests of Jurassic and Cretaceous sediments in the sedimentary section of the mountain, with lithologies including limestone, dolomite and sandstone. In the north, these sediments are blanketed by basalt flows from the late Neogene and Quaternary sedimentary deposits from the Tripoli-Homs Depression, that separate Mount Lebanon from the Syrian Coastal Ranges.