scholarly journals Caves as geoheritage resource in remote desert areas: a preliminary evaluation of Djara Cave in the Western Desert of Egypt

Geologos ◽  
2021 ◽  
Vol 27 (2) ◽  
pp. 105-113
Author(s):  
Kholoud M. Abdel Maksoud ◽  
Mahmoud I. Baghdadi ◽  
Dmitry A. Ruban

Abstract Caves are rare in northeast Africa and, thus, deserve attention as potential geoheritage objects (geosites). Assessment of Djara Cave and its vicinity (Western Desert, Egypt) has permitted to document unique features, such as the cave itself as a peculiar subsurface landform, speleothems providing data for palaeoenvironmental reconstructions, rock art demonstrating elements of past landscapes, siliceous nodules weathered from Eocene limestones and a network of dry drainage channels indicative of wetter palaeoenvironments. These features are assigned to geomorphological, sedimentological and palaeogeographical types of geoheritage. Djara Cave and its vicinity are proposed as a geosite of national rank; it is vulnerable to anthropogenic stress and needs geoconservation measures and instalment of interpretative signs. This geosite is already popular among tourists, and can be used for further tourism development. More generally, the presence of caves in Egyptian desert areas makes possible the recognition of national speleological heritage that requires special country-level strategies of management.

Zootaxa ◽  
2021 ◽  
Vol 4963 (3) ◽  
pp. 563-576
Author(s):  
A. EWART ◽  
M.S. MOULDS

This contribution details the morphology, distribution, and song characteristics of a new grass cicada species within the genus Mugadina Moulds, 2012, previously represented by only two much smaller species. The new species is M. superba sp. n. It occurs widely in central Queensland, occurring in a broad curved zone between the western desert areas and the eastern coast. Details of the morphology and the ticking calling songs presented are given, and detailed comparisons are made of morphology and songs between M. superba sp. n. and M. marshalli (Distant, 1911).


2004 ◽  
Vol 14 (1) ◽  
pp. 113-135 ◽  
Author(s):  
Toby Wilkinson ◽  
Karl W. Butzer ◽  
Dirk Huyge ◽  
Stan Hendrickx ◽  
Timothy Kendall ◽  
...  

The processes leading to the formation of early state societies remain one of the key topics of archaeological research. Few of these early states are as famous or evocative as that of ancient Egypt, a land of dramatic monuments and terrain, with mysterious and exotic religious practices and a distinctive and exotic iconography. But was Egypt the gift of the Nile, as the Greek historian Herodotus alleged? In this new book, Toby Wilkinson draws attention to a relatively neglected part of the Egyptian landscape: not the fertile river valley, but the deserts which fringe it to east and west. It is here in the deserts, he argues, that the origins of the Egyptian state are to be found. In recent millennia, the deserts have been hostile environments of rock and sand. Go back before 3000 bc, however, and a rather different picture emerges. This different picture is of a desert hinterland peopled by nomadic groups who spent part of their year in the Nile valley. It suggests a more mobile view of Egyptian Predynastic society than has usually been supposed. Desert and valley may have functioned together in a classic pattern of complementarity between contrasting environmental zones, with cattle herds perhaps moved from valley floor to desert in step with the cyclical pattern of the seasons. The specific ingredient which Wilkinson uses to link valley and desert during the fourth millennium bc is rock art. Egyptian rock art has not yet been properly recognized as a rich and important repertoire by specialists in the burgeoning field of rock art as whole. Surveys over more than a century, however, have revealed numerous groups of pecked and engraved images on the desert cliffs and boulders, and recent expeditions (including those by Wilkinson himself) are continually adding to the corpus. The Egyptian desert rock art is generally less well-known than the vivid rock paintings of the central Sahara (such as the famous Tassili frescoes), though it too conveys the image of a greener more habitable landscape. Wilkinson ties specific motifs found in the desert rock art to iconography from the Nile valley during the fourth millennium and later. Yet the linkages and chronologies remain controversial, along with the central hypothesis. Did the desiccation of the savannas lead to the formation of the Egypt, forcing the scattered pastoralist populations to withdraw to a cultivated Nile valley? Was Egypt the gift of the deserts, not the Nile? In this Review Feature the hypothesis is examined by specialists working in Egypt and Nubia, and the reliability of the supporting evidence is assessed.


Author(s):  
Mélanie Duval ◽  
Christophe Gauchon ◽  
Benjamin Smith

Rock art tourism facilities at publicly accessible sites range widely from a total absence of purpose-built infrastructure to multimillion-dollar interpretation centres, and from free and unrestricted visitation to full fee-paying, highly mediated visitation experiences run by tourism professionals. This chapter addresses questions surrounding the principles and practices of rock art tourism development in conjunction with issues of heritage management and conservation; each site is different, and development practices in one area cannot simply be transferred to another, although common methodologies may be followed. The most appropriate developments are constructed by first understanding the significance of places through genuine consultative processes that include all interested parties. Using examples from around the world, the authors provide an historical overview of rock art tourism in caves and open-air sites and discuss integrated rock art tourism management with a focus on conservation, interpretation, territoriality, and cultural connectivities.


2016 ◽  
Author(s):  
Ahmad A. Behroozmand ◽  
Pietro Teatini ◽  
Jesper B. Pedersen ◽  
Esben Auken ◽  
Omar Tosatto ◽  
...  

Abstract. During the last century, many large irrigation projects were carried out in arid lands worldwide. Despite a tremendous increase in food production, a common problem when characterizing these zones is land degradation in the form of waterlogging. A clear example of this phenomenon is in the Nubariya depression, Western Desert, Egypt. Following the reclamation of desert lands for agricultural production, an artificial brackish and contaminated pond started to develop in the late 1990s, which at present extends for about 2.5 km2. Available data provide evidence of a simultaneous general deterioration of the groundwater system. With the main objectives of (1) understanding the hydrological evolution of the area; (2) characterizing the hydrogeological setting; (3) developing scenarios of artificial aquifer remediation and recharge, an extensive hydrogeophysical investigation was carried out in this challenging environment using Magnetic Resonance Sounding and ground-based Time-domain EM techniques. The integrated interpretation of the geophysical surveys provided the hydrogeological picture of the upper 100 m sedimentary setting, in terms of both lithological distribution and groundwater quality. The information is then used to setup (1) a regional groundwater flow and (2) a local density-dependent flow and transport numerical model to reproduce the evolution of the aquifer system and develop a few scenarios of artificial aquifer recharge using the treated waters provided by a nearby waste-water treatment plant. The research outcomes point to the hydrological challenges that emerge for an effective management of water resources in reclaimed desert areas and they highlight the effectiveness of using advanced geophysical and modeling methodologies.


Author(s):  
Henryk Paner

Nubian rock art consists of handmade works on rock surfaces that differ significantly from the official images and texts of pharaonic Egypt. The oldest examples of such art are dated to the late Palaeolithic age and the Epipaleolithic Period. These are geometric representations as well as naturalistic depictions of bovids (wild cattle or aurochs), birds, hippopotamuses, gazelles, fish, hartebeest and stylized human figures, dated as far back as 15,000 bce. Similar motifs can be found both in the Nile Valley and in the adjacent desert areas of Upper Egypt and Lower Nubia, indirectly cited as proof of the existence of common cultural traditions in these regions and the notable mobility of contemporary hunter groups. Although Upper Egypt and Lower Nubia as early as the Early Dynastic Period (3200–3050 bce) saw the evolution of rock art from the “Preformal artistic stage” to a “Formal canonical phase” and became standardized and formalized, such a conclusion would be unsuitable for Upper Nubia, in which the evolution of rock art occurred in entirely different cultural circumstances. International activities aimed at rescuing Nubia’s heritage, under the auspices of the Merowe Dam Archaeological Salvage Project (MDASP), has led to the discovery of many sites with rock art and to recording changes that occurred in the cultural landscape of the Fourth Nile Cataract over the course of several thousand years. This has provided reliable foundations for an analysis of the changes to Upper Nubian rock art within its specific archaeological and historical context and environmental setting.


2017 ◽  
Vol 21 (3) ◽  
pp. 1527-1545 ◽  
Author(s):  
Ahmad Ali Behroozmand ◽  
Pietro Teatini ◽  
Jesper Bjergsted Pedersen ◽  
Esben Auken ◽  
Omar Tosatto ◽  
...  

Abstract. During the last century, many large irrigation projects were carried out in arid lands worldwide. Despite a tremendous increase in food production, a common problem when characterizing these zones is land degradation in the form of waterlogging. A clear example of this phenomenon is in the Nubariya depression in the Western Desert of Egypt. Following the reclamation of desert lands for agricultural production, an artificial brackish and contaminated pond started to develop in the late 1990s, which at present extends for about 2.5 km2. The available data provide evidence of a simultaneous general deterioration of the groundwater system. An extensive hydrogeophysical investigation was carried out in this challenging environment using magnetic resonance sounding (MRS) and ground-based time-domain electromagnetic (TEM) techniques with the following main objectives: (1) understanding the hydrological evolution of the area; (2) characterizing the hydrogeological setting; and (3) developing scenarios for artificial aquifer remediation and recharge. The integrated interpretation of the geophysical surveys provided a hydrogeological picture of the upper 100 m sedimentary setting in terms of both lithological distribution and groundwater quality. The information is then used to set up (1) a regional groundwater flow and (2) a local density-dependent flow and transport numerical model to reproduce the evolution of the aquifer system and develop a few scenarios for artificial aquifer recharge using the treated water provided by a nearby wastewater treatment plant. The research outcomes point to the hydrological challenges that emerge for the effective management of water resources in reclaimed desert areas, and they highlight the effectiveness of using advanced geophysical and modeling methodologies.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
W. Boone Law ◽  
Peter Hiscock ◽  
Bertram Ostendorf ◽  
Megan Lewis

AbstractModern satellite imaging offers radical new insights of the challenges and opportunities confronting traditional Aboriginal ecology and land use in Australia’s Western Desert. We model the likely dynamics of historic and precontact desert land use using Earth observation data to identify the distribution of suitable foraging habitats. Suitability was modelled for an ideal environmental scenario, based on satellite observations of maximal water abundance, vegetation greenness, and terrain ruggedness. Our model shows that the highest-ranked foraging habitats do not align with land systems or bioregions that have been used in previous reconstructions of Australian prehistory. We identify impoverished desert areas where unsuitable foraging conditions have likely persisted since early in the last glacial cycle, and in which occupation would always have been rare. These findings lead us to reconsider past patterns of land use and the predicted archaeological signature of earlier desert peoples.


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