On the origin and evolution of the Petra siq from geological perspective, is it natural or man made?
By: Abid, Abd al-Qadir; al-Khatib, Alaa; Allan, Ala…[et al.]. Jordan Journal for History and Archaeology. Vol. 6, no. 2 (Jun. 2012), pp.215-232, 18 p.
Subjects: Jordan; Geology; History