from Part II - Oasis Origins in the Sahara: A Region-by-Region Survey
Published online by Cambridge University Press: 23 March 2020
The southern oases of the Sahara can be split into two broad groups. First, there are a series located in and around the Saharan mountain ranges. From east to west these are: Ennedi, Tibesti, Aïr, Tassili n’Ajjer, Ahaggar and Adrar des Ilforas. These massifs receive higher levels of rainfall than other parts of the Sahara, resulting in seasonal rivers that feed permanent bodies of water (small lakes or pools/gueltas) or that support a high water table beneath the wadi beds. There are still populations of crocodiles living in Ennedi and nineteenth- and early-twentieth-century reports of them also in Ahaggar and Tibesti. However, these areas have traditionally been primarily exploited by pastoralists and they have little suitable land for oasis agriculture and highly variable rainfall. The dynamic wadi systems may also be a factor in the poor preservation of archaeological remains with less sturdy or older constructions either swept away or buried under sediment.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.