The Soils of Egypt by Hassan El-Ramady & Tarek Alshaal & Noura Bakr & Tamer Elbana & Elsayed Mohamed & Abdel-Aziz Belal

Author:Hassan El-Ramady & Tarek Alshaal & Noura Bakr & Tamer Elbana & Elsayed Mohamed & Abdel-Aziz Belal
Language: eng
Format: epub
ISBN: 9783319955162
Publisher: Springer International Publishing

7.4.1 Soil of the Abandoned Oases

The abandoned oases in Western Desert are of four oases, namely, Sitra oasis, El Nuweimisa oasis, El Bahrien oasis, and El Arag oasis. The area of the abandoned oases falls within the southern corner of the northern plateau of the Western Desert of Egypt; the Marmarica Plateau. This area forms the utmost borders of the south of Qattara Depression and situated about 95 km to the southeast of Siwa Oasis and about 200 km to the northwest of El Baharia oasis. The abandoned oases area is bounded to the north by Qattara Depression, while toward the south; it is limited by the field dunes of the Great Sand Sea and extends about 41.8 km to south direction. The area of abandoned oases is bounded by longitudes 26° 15′ 00″ & 27° 18′ 45″ E and Latitudes 28° 37′ 30″ & 29° 00′ 00″ N, Fig. 7.6. The area of the abandoned oases falls within the southern corner of the northern plateau of the Western Desert of Egypt; the Marmarica Plateau. This area forms the utmost borders of the south of Qattara Depression and situated about 95 km to the southeast of Siwa Oasis and about 200 km to the northwest of El Baharia oasis. The abandoned oases area is bounded to the north by Qattara Depression, while toward the south, it is limited by the field dunes of the Great Sand Sea and extends about 41.8 km to south direction. The area of abandoned oases is bounded by longitudes 26° 15′ 00″ & 27° 18′ 45″ E and Latitudes 28° 37′ 30″ & 29° 00´ 00″ N. Saleh (2010) was describe the different landforms of abandoned oases which are, namely, footslopes, pediments, peniplains, sandy plains, sand flats, sandy hummocks, overflow basins, decantation basins, dry sabkhas, and wet sabkhas (Fig. 7.7). The morphological properties of soil profiles of the different landforms that abandoned oases embrace could be considered as relics of the soil forming processes. Soil profiles vary widely with regard to color, texture, structure, consistency, lithology, profile depth, boundaries of underlying horizons, and pedological features through soil profiles. Differences of soil morphology between soil profiles of abandoned oases and also the differences between horizons of the same profile are mainly ascribed to environmental conditions prevailing during soil forming processes. Morphological features of soil profiles of abandoned oases are given here referring to the field studies and observations.

Fig. 7.6 Soil map in Haliab and Shalateen area, Eastern Desert .

Source NARSS (2016)

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.